MK5 Golf GTI

General => Product Reviews => Topic started by: sub39h on December 05, 2011, 10:08:17 pm

Title: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: sub39h on December 05, 2011, 10:08:17 pm
WHY

I had a misfire on cylinder 3, diagnosed when I went on Awesome's rolling road. Spark plugs hadn't been changed for 18k miles or so so i thought it couldn't do any harm. Awesome also suggest that any tuned car runs the colder spark plugs. They even fitted them to a brand new Stage 1 Golf R which was misfiring and it cured it (apparently anyway).

WHICH ARE THE RIGHT PLUGS FOR MY CAR?

I was reading from the NGK website about heat gradings.  They say that for every 75 - 100 bhp increase you should go a step colder. That being said the old standard heat range was six for a 2.0 tfsi.  Based on that the 7s would be good for upto 300bhp and anything over 300bhp the 8s.  I have 8s and have about circa 260 to 270bhp.  I do lots of short runs now I have moved so i am thinking of switching back to the 7s.  As the plugs will never reach the 450c temp it needs to burn of the carbon and I very rarely do long high speed runs and no track driving. I have copied a link  to the article I was reading.


http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp (http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp)


SOURCING

Initially I was going to take advantage of Awesome's offer of 4x spark plugs for £32 delivered, but with the kind help of Jaywoo-GTI i was directed towards this eBay listing:
http://www.ebay.co.uk/itm/320797953741?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

Items delivered quickly and safely wrapped, and for £10 less than Awesome: awesome! (Or not, as the case may be  :rolleye:)

FITTING

http://www.golfmkv.net/blog/archives/9#

i didn't have the tools (was short an extension for my socket set), so popped it down to National Tyres in Newcastle-u-Lyme where Richard quoted me around £10 to do it for me, but he couldn't do it there and then because of bookings. Instead he offered to lend me his tools so I could do it myself.

Got the coils off, at which point i noticed one of my coils (cyl 4, not the one misfiring) was rusty despite being changed less than 3 months ago under the recall:

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fyy209%2Fsub39h%2FIMG_1995.jpg&hash=2a2a03ee3580ee3b759c1f2f3aa6ddb15a7d62b2)

(Advice welcome about that^.) I went inside to ask Richard's advice, at which point he came out to the car and, without me asking, changed the spark plugs for me. When I asked him how much, he said "nothing". Result!

OTHER VERSIONS

OEM
Nology
??? (feel free to add others, i didn't really research it tbh)

PLUS POINTS

1. Cost - OEM plugs are in the region of £45 to buy. These were half the price, and from some of the posts on VAGOC it looks like VAG main dealers sometimes use the NGKs anyway (?!)

2. Misfire gone (!) - so they served their original purpose

3. Increase in fuel economy? - seems that way. On my regular trip to the gym which is 16mi away (don't ask) i got better fuel economy than normal, despite the fact that it was 2deg and my car really seems to suffer in the cold. I was driving like a bit of a prat too, and even stopped off for some V-Power on the way which always hurts my fuel economy average on the DIS. 

4. Smoothness? - oh how subjective this is, but the car just feels better.

MINUS POINTS

NONE!!! If your car isn't tuned apparently colder plugs don't get hot enough to burn away deposits and you can get fouling of your plugs. I'll be going Stage 2 soon hopefully, so still happy with the purchase. I'll keep you informed if I run into trouble.

15/3/12 Update - roughly 6k miles on standard tune with no degradation in performance :happy2:

28/8/12 Update - roughly 12k miles on standard tune. Single episode of misfire 2 months ago. Disappeared with no recurrence. No fault codes logged, no problems with cold starting.

14/10/13 Update - roughly 20k miles on standard tune. No further episodes of misfiring. The plugs were changed for Nology plugs as part of a major service and does feel a little more responsive. I maintain that for a routine plug change they are good value and should not be considered an upgrade - at least not on an unmapped K03 car.

SUMMARY

For £21.32 fitted (not including the petrol it took me to drive to the garage) I'd say this is a right old result. Whether or not they make a difference is irrelevant, they're half the price of OEM and do exactly the same job. If they're better that's just an added bonus.
 
Title: Re: NGK Iridiums BKR8EIX
Post by: Eccie on December 05, 2011, 10:44:59 pm
That's some saving over the ones from Awesome and OEM, well done :wink:
Title: Re: NGK Iridiums BKR8EIX
Post by: Weston on December 05, 2011, 10:59:42 pm
Ordered  :happy2: let's hope they fix my misfire as well  :signLOL:
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on December 06, 2011, 12:14:47 am
That's some saving over the ones from Awesome and OEM, well done :wink:

congratulate Jawyoo-GTI, not me!

Ordered  :happy2: let's hope they fix my misfire as well  :signLOL:

good luck  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: Weston on December 06, 2011, 12:16:52 am
Thanks I'll update once they're fitted
Title: Re: NGK Iridiums BKR8EIX
Post by: berg on December 06, 2011, 12:10:20 pm
ordered, dont need just yet but planning to change plugs in Feb and I like to have thing sin stock in my garage (bat cave to copy RR  :grin:)
Title: Re: NGK Iridiums BKR8EIX
Post by: Jaywoo-GTI on December 06, 2011, 12:15:40 pm
Nice to see they cured your problem, and glad i could help :happy2: (even if you do drive a rich mans golf :P )
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 17, 2011, 06:59:07 pm
I fitted a set of these a few weeks back - unfortunately didn't see this post so paid a bit more via awesome!

They've cured my little misfire on idle, and the misfire on WOT at low revs has disappeared

The pops between changes on the DSG have improved too, so all round a winning purchase. Car feels like new again
Title: Re: NGK Iridiums BKR8EIX
Post by: Weston on December 17, 2011, 07:17:14 pm
I fitted a set of these a few weeks back - unfortunately didn't see this post so paid a bit more via awesome!

They've cured my little misfire on idle, and the misfire on WOT at low revs has disappeared

The pops between changes on the DSG have improved too, so all round a winning purchase. Car feels like new again

These cured my misfire under load to  :grin: And it's weird that you'd mention the pops as I thought today that they sounded better  :driver:
Title: Re: NGK Iridiums BKR8EIX
Post by: maxload on December 17, 2011, 08:43:27 pm
Nice write up there mate 

Ill be purchasing these and fitting in the new year  :drinking:
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on December 17, 2011, 09:20:46 pm
Do you have an engine cover? Water in no4 and rust cool pack is common and I've had 3 or 4 rusty no 4 coils.  

Might try a touch of grease to make a better seal.

Good write up.  I use the 7s on st2+ and gives the car a new lease of life when I change them.  I'm anal and do them every 6 - 10k


Thanks

Mike
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on December 18, 2011, 07:20:24 am

Do you have an engine cover? Water in no4 and rust cool pack is common and I've had 3 or 4 rusty no 4 coils. 

Might try a touch of grease to make a better seal.


Thanks for the info. Nope, no engine cover. I'm gonna change it and as you suggest use a little grease to improve the seal :happy2:

Good write up.  I use the 7s on st2+ and gives the car a new lease of life when I change them.  I'm anal and do them every 6 - 10k

Yeah definitely. There's something tangibly different about the car, but it's not something I could measure objectively

Almost forgot to ask, do you use the pad dampers or an alternative (or nothing at all) and do you get squeezing.

Thanks

Mike

Not sure what you mean Mike
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on December 18, 2011, 05:36:29 pm
ah. i've not fitted my NQS yet, and i was gonna give it a go without the dampers because DaveB didn't have a set for me when i bought... but he said i don't need them?
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 18, 2011, 06:46:06 pm
To add, I did 140miles today and these plugs have made the car a different beats. The map is just as it should be now. No hesitation, misfires or other complaints

So pleased  :xmassmiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: maxload on December 18, 2011, 07:56:58 pm
To add, I did 140miles today and these plugs have made the car a different beats. The map is just as it should be now. No hesitation, misfires or other complaints

So pleased  :xmassmiley:

Dont you just love spark plugs  :jumping:
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 18, 2011, 07:59:11 pm
I do, very much  :signLOL:
Title: Re: NGK Iridiums BKR8EIX
Post by: JackG on December 18, 2011, 11:19:01 pm
There's so many different plugs out there and people rate different ones so im pickled  :scared:
Would these be "the daddy" for stage 2+ eddy?
 :santa:
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 18, 2011, 11:28:07 pm
I would say so Jack
Title: Re: NGK Iridiums BKR8EIX
Post by: jaycue2u on December 19, 2011, 01:37:54 pm
I assume these are the right type for an 05 GTI?
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 19, 2011, 01:39:24 pm
Yes

However if you are not mapped, it should be said a BKR7EIX is perhaps better as this is the same as VWs stock plugs.
Title: Re: NGK Iridiums BKR8EIX
Post by: jaycue2u on December 19, 2011, 01:41:02 pm
Im running a stage 1 revo atm, looking to go stage 2 in the new year, so these ones are GTG?
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 19, 2011, 01:48:05 pm
Then these are perfect for what you want  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on December 19, 2011, 01:49:50 pm
I was under the impression 7's were the ones I needed for st2+ well just ordered these to try thanks for the link!

Mike
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 19, 2011, 01:55:53 pm
7s are VW spec, which are a step cooler

8s are step cooler over VW spec and better suited to tuned engines

Also, iridium is a better conductor than platinum which VW use in their NGK Plugs - Iridium is almost as conductive as copper, but has the long life of platinum so its win win
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on December 19, 2011, 02:08:37 pm

Will see how I get on with them. Cheers

May not go in till spring when the weather allows the engine to be worked safely.

Warren cox wrote a good post on various tried and tested grade plugs over on VagOc
Title: Re: NGK Iridiums BKR8EIX
Post by: alackofspeed on December 19, 2011, 10:29:27 pm
I found this thread after a bit of searching having noted my car was missing occasionally at idle after a long run at medium to high loads (extended motorway run, with some B-road overtaking for instance). I have the latest revision PCV flying-saucer-esk jobba fitted.

Mine's a stg-1 K03, so I'll report any improvement to add to the thread's statistics. For reference the plugs I removed are 15k old PFR7S8EG and they look in text-book condition. Whatever the outcome 4 iridium plugs for just over £20 makes them pretty much disposable, so cheers to the OP for the tip-off.
Title: Re: NGK Iridiums BKR8EIX
Post by: cupra_k1 on December 20, 2011, 02:16:11 am
I have been running these for a couple of months now and the car hasn't missed a beat.
Title: Re: NGK Iridiums BKR8EIX
Post by: JackG on December 20, 2011, 07:31:20 am
I would say so Jack
Cheers dude  :drinking:
Title: Re: NGK Iridiums BKR8EIX
Post by: muckipup on December 20, 2011, 10:34:22 am

Quick question or two - I know that these plugs are sometimes sold as single units (as they appear to be on the ebay link) as they are used in motorbikes. However, I think the bike plugs come with a different gap setting. Is it the same for these or are they preset to 0.8mm like the 4-pack?

Also, there was a post or two about some folks reducing the gap from 0.8 to 0.67mm or something like that on tuned cars. Is there anything behind reducing the gap (as there is a big danger of damaging the delicate tips on these plugs?



(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2FMy_Leon_Cupra%2FMaintenance_and_Technical%2F99635108801.jpg&hash=ee98964959cf2f1a07ddea9d29c9e5dc67319aec)

The pad damper I'm talkin about ^^ 

I managed to source 4 of these for my NQSBBK as I was unlucky enough to get a bit of low speed squeel although it may have been a combination of discs, pads and not being broken in enough. These things fixed it no problem anyway.  As a bit of advice, if you are going without the anti-squeel shims, use a non-petroleum based grease on the back of the pads like CeraTec. Copper grease rots the bejeeziz out of the rubber dust seals.  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: SteveP on December 20, 2011, 10:43:52 am
Can you take the brake talk to another thread please, I will clean this up a bit later.
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on December 20, 2011, 10:47:22 am

Quick question or two - I know that these plugs are sometimes sold as single units (as they appear to be on the ebay link) as they are used in motorbikes. However, I think the bike plugs come with a different gap setting. Is it the same for these or are they preset to 0.8mm like the 4-pack?

Also, there was a post or two about some folks reducing the gap from 0.8 to 0.67mm or something like that on tuned cars. Is there anything behind reducing the gap (as there is a big danger of damaging the delicate tips on these plugs?



(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2FMy_Leon_Cupra%2FMaintenance_and_Technical%2F99635108801.jpg&hash=ee98964959cf2f1a07ddea9d29c9e5dc67319aec)

The pad damper I'm talkin about ^^ 

I managed to source 4 of these for my NQSBBK as I was unlucky enough to get a bit of low speed squeel although it may have been a combination of discs, pads and not being broken in enough. These things fixed it no problem anyway.  As a bit of advice, if you are going without the anti-squeel shims, use a non-petroleum based grease on the back of the pads like CeraTec. Copper grease rots the bejeeziz out of the rubber dust seals.  :happy2:

It was RON ECHT who suggested that gap on the other NGK iridium thread.  I bought a feeler gauge but didnt want to damage the plug.
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on December 20, 2011, 10:50:37 am
Can you take the brake talk to another thread please, I will clean this up a bit later.

Deleted my brake posts. Sorry about that.
Title: Re: NGK Iridiums BKR8EIX
Post by: alackofspeed on December 22, 2011, 11:37:23 pm
I found this thread after a bit of searching having noted my car was missing occasionally at idle after a long run at medium to high loads (extended motorway run, with some B-road overtaking for instance). I have the latest revision PCV flying-saucer-esk jobba fitted.

Mine's a stg-1 K03, so I'll report any improvement to add to the thread's statistics. For reference the plugs I removed are 15k old PFR7S8EG and they look in text-book condition. Whatever the outcome 4 iridium plugs for just over £20 makes them pretty much disposable, so cheers to the OP for the tip-off.

Notes since fitting:-

Idle better.
Fuel consumption unchanged - currently getting between 35-37mpg on the run to work, and saw 37.5 mpg on a 45 mile motorway drive earlier in the week, which is par for the course.
Engine seems to sound crisper, but this may be placebo.
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 22, 2011, 11:53:32 pm
Ive noticed the same so it would imply these plugs really do make a big difference.

However my MPG has improved by around 2-3mpg
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on December 23, 2011, 02:34:50 am
Ive noticed the same so it would imply these plugs really do make a big difference.

However my MPG has improved by around 2-3mpg

My mpg improvement has been more to the order of 4-5mpg
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on December 23, 2011, 07:51:44 am
Mine may be more but I've only driven it twice since replacing them!
Title: Re: NGK Iridiums BKR8EIX
Post by: markymark on December 23, 2011, 07:39:04 pm
Fitted my set today and I immediately noticed the engine ran a lot smoother. My slight misfire had totally gone and she even seems more eager! :driver:
Title: Re: NGK Iridiums BKR8EIX
Post by: flyboy1976 on December 24, 2011, 01:44:37 pm
Put mine in the other day and def smoother! I was running the NGK OEM heat range ''7'' plugs before.
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on December 24, 2011, 02:03:19 pm
Put mine in the other day and def smoother! I was running the NGK OEM heat range ''7'' plugs before.

Looking forward to feeling a difference between the 7 & 8
Title: Re: NGK Iridiums BKR8EIX
Post by: MAT ED30 on December 24, 2011, 02:33:05 pm
Going to get some of these next week I think
Title: Re: NGK Iridiums BKR8EIX
Post by: jimk04 on January 03, 2012, 07:24:25 pm
Have bought some of these today- got them from my local motor factor as a friend runs it, payed £35.

What is the deal with the gapping of them?

IS it best to close them down a bit?
Title: Re: NGK Iridiums BKR8EIX
Post by: markymark on January 03, 2012, 08:18:46 pm
Mine were gapped at .8 I think.
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on January 03, 2012, 08:30:27 pm
I wouldn't touch the gapping. Mine are perfect from their purchased spec.
Title: Re: NGK Iridiums BKR8EIX
Post by: markymark on January 03, 2012, 09:37:24 pm
I wouldn't touch the gapping. Mine are perfect from their purchased spec.
Mine were all over the place, that's the only reason why mine were done!
Title: Re: NGK Iridiums BKR8EIX
Post by: vRSAlex on January 08, 2012, 05:31:27 pm
 0.8 should be the standard gap. I always gap them down to 0.64.
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on January 09, 2012, 02:07:15 am
Would that gapof 0.64 also apply to the 7 heat range. I am stage 2 k03 and am going stage 3 soon. I will get some 8s once these need replacing.
Cheers Matt
Title: Re: NGK Iridiums BKR8EIX
Post by: jimk04 on January 09, 2012, 07:09:06 am
I run 260hp gti and fitted 8s at the weekend. Measured them and are set at .7. They seem fine
Title: Re: NGK Iridiums BKR8EIX
Post by: DonalM on January 10, 2012, 04:12:03 pm
Just ordered these. Looking forward to fitting them. Good price.

Thanks for the link.  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: Jussa on January 10, 2012, 04:25:58 pm
Guys,

Any good advice on the best place or URL's to buy these?
Also, what would the best gap be for an S3 at stage 2+?

 :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on January 10, 2012, 04:26:56 pm
Ebay link on the first page

And .7 as they come should be fine.
Title: Re: NGK Iridiums BKR8EIX
Post by: micaerin on January 10, 2012, 04:43:03 pm
ill be going stage 1 soon,  on a GTI K03, so will it be worth getting these plugs?
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on January 10, 2012, 04:58:38 pm
Aye they are good for any mapped GTI
Title: Re: NGK Iridiums BKR8EIX
Post by: rdfcpete on January 10, 2012, 05:47:15 pm
Encouraging results from all that have fitted, so ordered and my set are sat on my desk. Will fit in the next couple of weeks  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: mark53 on January 10, 2012, 06:02:21 pm
I went for the  BKR7EIX found the  BKR8EIX was to cold 
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on January 10, 2012, 08:26:29 pm
I went for the  BKR7EIX found the  BKR8EIX was to cold 

how do you mean? what was the problem with the BKR8EIX?
Title: Re: NGK Iridiums BKR8EIX
Post by: mark53 on January 10, 2012, 08:37:02 pm
I found the BKR8EIX would foul up due not getting hot enough to burn off the carbon deposits
Title: Re: NGK Iridiums BKR8EIX
Post by: Jaywoo-GTI on January 11, 2012, 08:59:01 am
I spoke to Revo about the above differences and was to as long as the car is given a good spirited drive occasionally  :driver: running '8's will not be a problem,
the '7's are more suited to a standard gti.
Title: Re: NGK Iridiums BKR8EIX
Post by: Teutonic_Tamer on February 07, 2012, 10:53:25 pm
Got the coils off, at which point i noticed one of my coils (cyl 4, not the one misfiring) was rusty despite being changed less than 3 months ago under the recall:

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fyy209%2Fsub39h%2FIMG_1995.jpg&hash=2a2a03ee3580ee3b759c1f2f3aa6ddb15a7d62b2)

(Advice welcome about that^.)

There is a special grease which the stealers should have used - it has only been out about three years - so VW stealers might not yet be up to speed.  :chicken:

Here we go - G 052 141 A2 - its only a dinky 20ml tube, and you'll need about 15 beer tokens - but if used correctly, will stop coil rusting, and make insertion and removal much easier.
Title: Re: NGK Iridiums BKR8EIX
Post by: Teutonic_Tamer on February 07, 2012, 10:58:24 pm
0.8 should be the standard gap. I always gap them down to 0.64.
Why?  Is that not old skool practice?  :booty:

That was the kind of adjustment when you say, increased the compression, or massively increased turbo boost - and more importantly, with old skool ignition systems with single coils.  Modern super high voltage multi coil systems shouldn't really need plug gaps closing at all.  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: Teutonic_Tamer on February 07, 2012, 11:00:24 pm
ill be going stage 1 soon,  on a GTI K03, so will it be worth getting these plugs?

Stick with standard plugs on S1 K03 - I tried colder plugs on mine, and I got cold running fouling and misfire.
Title: Re: NGK Iridiums BKR8EIX
Post by: George on February 13, 2012, 03:37:13 pm
Would these be ok on a standard 2.0 TFSI K04? Or better to use standard plugs and then replace with these once Stage 1 Mapped?

Thanks :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: alexperkins on February 13, 2012, 03:40:32 pm
If its a K04, should be fine  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: john_o on February 13, 2012, 11:08:06 pm
brilliant  :happy2:
had P0303 misfire cyl 3 code several times over the last few days, reckon after 59k miles I better change the plugs  :innocent:
lets see if they help...
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on February 13, 2012, 11:11:02 pm
brilliant  :happy2:
had P0303 misfire cyl 3 code several times over the last few days, reckon after 59k miles I better change the plugs  :innocent:
lets see if they help...

 :happy2:

Mapping these 2.0T engine really show up weak plugs.
Title: Re: NGK Iridiums BKR8EIX
Post by: Greeners on February 13, 2012, 11:14:11 pm
Would these be ok on a standard 2.0 TFSI K04? Or better to use standard plugs and then replace with these once Stage 1 Mapped?

Thanks :happy2:

Mine are going great on my standard KO4 currently!  :happy2:

Should be mapped by the end of this week though!  :wink:
Title: Re: NGK Iridiums BKR8EIX
Post by: stealthwolf on February 14, 2012, 08:26:09 am
Which map?
Title: Re: NGK Iridiums BKR8EIX
Post by: maxload on February 14, 2012, 01:17:46 pm


Mapping these 2.0T engine really show up weak plugs.

As some of you may know , at the JKM RR day my car was showing a missfire on cylinder 3.
This morning I went back to JKM for a service and for a set of these plugs to be fitted. Hey presto no more misfire!!! The car feels so much smoother and pulls so much better.
Unbelievably VW suggest a change of plugs every 40000 miles which is a joke. On any car , especialy a remapped car  , acording to JKM it should be every 20000 miles. Lesson learned...
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on February 14, 2012, 01:26:06 pm


Mapping these 2.0T engine really show up weak plugs.

As some of you may know , at the JKM RR day my car was showing a missfire on cylinder 3.
This morning I went back to JKM for a service and for a set of these plugs to be fitted. Hey presto no more misfire!!! The car feels so much smoother and pulls so much better.
Unbelievably VW suggest a change of plugs every 40000 miles which is a joke. On any car , especialy a remapped car  , acording to JKM it should be every 20000 miles. Lesson learned...

Result :)
Title: Re: NGK Iridiums BKR8EIX
Post by: alackofspeed on February 14, 2012, 07:32:57 pm


Mapping these 2.0T engine really show up weak plugs.

As some of you may know , at the JKM RR day my car was showing a missfire on cylinder 3.
This morning I went back to JKM for a service and for a set of these plugs to be fitted. Hey presto no more misfire!!! The car feels so much smoother and pulls so much better.
Unbelievably VW suggest a change of plugs every 40000 miles which is a joke. On any car , especialy a remapped car  , acording to JKM it should be every 20000 miles. Lesson learned...

Excellent - glad that it was the cheap fix hoped for on the day.

Did JKM fit temperature '8' plugs, or '7'?

The chaps in the JKM dyno thread suggested JKM don't like to fit the 8s, yet that's what JKM had in the display cabinet. I assumed they'd fit '8' to a mapped K04 as it seems to be the done thing these days.
Title: Re: NGK Iridiums BKR8EIX
Post by: maxload on February 15, 2012, 04:11:01 pm


Did JKM fit temperature '8' plugs, or '7'?

The chaps in the JKM dyno thread suggested JKM don't like to fit the 8s, yet that's what JKM had in the display cabinet. I assumed they'd fit '8' to a mapped K04 as it seems to be the done thing these days.

Not sure if it was 7 or 8 - but I would like to think it was the 8s. It dosen't state on the invoice 7 or 8 just NGK Iridiums. I guess I should have asked the question. Anyway the car now drives and feels as it should so I'm more than pleased  :wink:
Title: Re: NGK Iridiums BKR8EIX
Post by: MAT ED30 on February 21, 2012, 10:36:17 am
Just put my order in for some  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on February 21, 2012, 11:04:44 am
I'm glad to see this has helped so many ppl :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: markymark on February 21, 2012, 11:10:01 am
I'm glad to see this has helped so many ppl :happy2:
Certainly has, cheers buddy! :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: MAT ED30 on February 24, 2012, 11:12:40 am
done about 40 miles on them after fitting them last night and the car idles so much better and i have race mounts so its made a massive noise change to the car and also car seems to pull smoother too.The wife also said its less noisy on tick over  :smiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: boxxer1973 on February 24, 2012, 12:08:36 pm
done about 40 miles on them after fitting them last night and the car idles so much better and i have race mounts so its made a massive noise change to the car and also car seems to pull smoother too.The wife also said its less noisy on tick over  :smiley:


got to love the wife test,whenever I do any performance mods I never tell her. had it stage 2+'d the other day and she came back saying the car seems different it makes more of a whoosh noise and accelerates quicker I nearly wet myself . justified the mod to me lol
Title: Re: NGK Iridiums BKR8EIX
Post by: Frodo-anni on February 29, 2012, 10:42:48 pm
Checked at VW and they said the eddie wont need plugs until 60k  :signLOL: think i will be ordering some 7's straight away as im still standard and will be for atleast the next 6mths.
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on February 29, 2012, 10:47:01 pm
I dont know why dealers say 60K....  :stupid: :stupid:
Title: Re: NGK Iridiums BKR8EIX
Post by: Greeners on February 29, 2012, 10:50:33 pm
I think most have shown in this thread the car benefits from having these fitted way before then!!
Title: Re: NGK Iridiums BKR8EIX
Post by: suave on March 01, 2012, 08:15:58 am
Guys

Are these plugs only for tuned/re-mapped GTIs?

Pretty sure my standard hasnt had plug change so would get some if they suited my standard GTI.

thanks

Title: Re: NGK Iridiums BKR8EIX
Post by: john_o on March 01, 2012, 08:40:54 am
as it turns out i bought the 8's but have never fitted them!
I got the car serviced by a VW dealer (major service) which included OE plugs

for what its worth, mine were 59,000 miles old and I was having P0030 Misfire Cyl3 fault codes on acceleration. These have now gone and my boost levels have increased  :surprised:
So old plugs had a really detrimental effect on my car.

For any GTI get new plugs regularly, the recommendation on here seems to be 7's for std cars and 8's for remapped.
Title: Re: NGK Iridiums BKR8EIX
Post by: suave on March 01, 2012, 10:41:33 am
Checked at VW and they said the eddie wont need plugs until 60k  :signLOL: think i will be ordering some 7's straight away as im still standard and will be for atleast the next 6mths.

Sorry to be so ignorant but what should i order/ask for then - i dont the 7s reference?? Do you still recommend NGK Iridiums?

I defo could use new plugs in my standard GTI.

Thanks
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on March 01, 2012, 10:53:47 am
The part number is BKR7EIX but VW dealers dont sell them.  If you are staying standard then the 7s will be fine for your car and even fine on a remapped ones. I run the 7s and I am stage 2+.  Though I might fit a set of 8's to see what difference they make to my car as I change them every 10,000 miles.  Even if they dont really need changing, I still do when I change the oil and they are inexpensive to replace. The only problem with the 8's is they may foul if the engine doesnt get up to temperature with local driving.
Title: Re: NGK Iridiums BKR8EIX
Post by: GrayMK5GTI on March 01, 2012, 12:47:20 pm
I got a set of the 7's off amazon for around £24 posted  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: GrayMK5GTI on March 04, 2012, 05:57:41 pm
Fitted mine today, cured my misfire under load  :happy2:

Bit worrying that the Bosch ones that VW fitted last June were failing after only 8000 miles  :surprised:
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on March 04, 2012, 07:06:05 pm

Got some 7's in the boot might put them back in for tootling round and use the 8's for track days etc
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on March 04, 2012, 07:31:23 pm
well I've fitted my new NGK 8's and I canT tell there's any difference between the stock OEM bosch plugs in performance terms.. And in terms of starting or mpg..  :confused:
Title: Re: NGK Iridiums BKR8EIX
Post by: bacillus on March 04, 2012, 07:34:20 pm
well I've fitted my new NGK 8's and I can tell there's any difference between the stock OEM bosch plugs in performance terms.. And in terms of starting or mpg..  :confused:

Should that be can't?
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on March 04, 2012, 07:41:05 pm
well I've fitted my new NGK 8's and I can tell there's any difference between the stock OEM bosch plugs in performance terms.. And in terms of starting or mpg..  :confused:

Should that be can't?
Dam iPad spell checker  :fighting: ..cheers  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on March 14, 2012, 09:35:23 pm
I managed to get a set cheap, so I will be fitting these tomorrow along with my new N revision PCV and oil service.  Hopefully should make a nice difference.  I shall report my findings.
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on March 15, 2012, 09:41:15 pm
Fitted them today along with my N revision PCV.  The car has no more flat spots and pulls like a train :happy2:  Plus it pops and burbles more on overrun :evilgrin:
Title: Re: NGK Iridiums BKR8EIX ***QUICK UPDATE***
Post by: sub39h on March 15, 2012, 10:09:03 pm
Quick update about these:

Must have run about 5k miles now on standard tune and no ill effects thus far
Title: Re: NGK Iridiums BKR8EIX
Post by: danishmkvgti on March 16, 2012, 04:47:20 am
3 sets of these ordered, i hope it eliminates the Missfires i'm having.  :smiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on March 16, 2012, 06:51:13 pm
3 sets of these ordered, i hope it eliminates the Missfires i'm having.  :smiley:

You only have 4 cylinders Jake  :P
Title: Re: NGK Iridiums BKR8EIX
Post by: bacillus on March 16, 2012, 07:38:09 pm
3 sets of these ordered, i hope it eliminates the Missfires i'm having.  :smiley:

If it doesn't you can try some Nology silver ones...
http://www.nology.co.uk/silver.asp
Title: Re: NGK Iridiums BKR8EIX
Post by: danishmkvgti on March 16, 2012, 07:39:26 pm
3 sets of these ordered, i hope it eliminates the Missfires i'm having.  :smiley:

You only have 4 cylinders Jake  :P

You should know me by now Mike: "you never know when you need a spare"  :happy2:
Plugs has arrived today, if i'm not working tomorrow i'll get them changed  :smiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on March 16, 2012, 07:42:48 pm
3 sets of these ordered, i hope it eliminates the Missfires i'm having.  :smiley:

If it doesn't you can try some Nology silver ones...
http://www.nology.co.uk/silver.asp

Hmmm  :popcornsoda:


3 sets of these ordered, i hope it eliminates the Missfires i'm having.  :smiley:

You only have 4 cylinders Jake  :P

You should know me by now Mike: "you never know when you need a spare"  :happy2:
Plugs has arrived today, if i'm not working tomorrow i'll get them changed  :smiley:

Too true
Title: Re: NGK Iridiums BKR8EIX
Post by: Frodo-anni on March 17, 2012, 10:58:02 am
Been shopping round for these, camskill have an offer on at £8.16 each with 10.5% off with orders of 8 or more.

Amazon seem to be out of stock all the time, any other suggestions as i have 8 to get, to change both cars. 40k on the same plugs is just wrong.
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on March 17, 2012, 11:02:41 am
Try Opie Oils as I got mine from there very cheaply.
Title: Re: NGK Iridiums BKR8EIX
Post by: danishmkvgti on March 17, 2012, 11:15:50 am
sparkplugs.co.uk  :smiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: fab5freddy on March 17, 2012, 04:39:49 pm
The eBay link @ the start of this thread is the cheapest I've found  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on March 17, 2012, 06:52:09 pm
They've put their prices up tho...
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on March 17, 2012, 07:11:36 pm
There is a company called the green sparkplig company and they sell them for £5 and a few pence each. So Opie Oils price matched that with free postage  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: Tfsi_Mike on March 17, 2012, 07:13:39 pm
There is a company called the green sparkplig company and they sell them for £5 and a few pence each. So Opie Oils price matched that with free postage  :happy2:

They are the same people selling on eBay in the original link  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: nezquick on April 11, 2012, 12:34:01 pm
ebay was where I got mine, couldn't be happier - bought on this review and happy I did - cracking product
Title: Re: NGK Iridiums BKR8EIX
Post by: danishmkvgti on April 11, 2012, 06:56:55 pm
Fitted these due to having missfires under wot, but had to gap them from 0,8 to 0,6 to stop the missfires  :smiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: rdfcpete on April 21, 2012, 02:32:33 pm
Just a triple check guys (haven't got round to fitting them yet);

After all the discussion around the 7's/8's and the difference in results with the different gaps, will the set of BKR8EIX's that I bought be setup correctly out the box for my completely engine standard k03 GTI on a 2006 plate?

Thanks.
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on April 21, 2012, 03:41:42 pm
Just a triple check guys (haven't got round to fitting them yet);

After all the discussion around the 7's/8's and the difference in results with the different gaps, will the set of BKR8EIX's that I bought be setup correctly out the box for my completely engine standard k03 GTI on a 2006 plate?

Thanks.

They should be set from the factory so should be okay.
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on April 21, 2012, 04:32:45 pm

Also, iridium is a better conductor than platinum which VW use in their NGK Plugs - Iridium is almost as conductive as copper, but has the long life of platinum so its win win


....This is exactly what JKM told me when I had my usual 20k-mile spark plug change to NGK Iridiums. I'm running Revo Stage 2.
Title: Re: NGK Iridiums BKR8EIX
Post by: danishmkvgti on April 21, 2012, 08:41:16 pm
Just a triple check guys (haven't got round to fitting them yet);

After all the discussion around the 7's/8's and the difference in results with the different gaps, will the set of BKR8EIX's that I bought be setup correctly out the box for my completely engine standard k03 GTI on a 2006 plate?

Thanks.

Only when pushing the envelope you have to gap them to 0,6. I got the info from VrsAlex and it worked for me as i had some slight missfires in mine even with these plugs fitted  :smiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: rdfcpete on April 21, 2012, 08:53:04 pm
Just a triple check guys (haven't got round to fitting them yet);

After all the discussion around the 7's/8's and the difference in results with the different gaps, will the set of BKR8EIX's that I bought be setup correctly out the box for my completely engine standard k03 GTI on a 2006 plate?

Thanks.

Only when pushing the envelope you have to gap them to 0,6. I got the info from VrsAlex and it worked for me as i had some slight missfires in mine even with these plugs fitted  :smiley:

What's pushing the envelope mean Jake?  :scared:
You're a k04 and running several engine mods aren't you, so I'm unlikely to need to change them for my factory setup, right?
Title: Re: NGK Iridiums BKR8EIX
Post by: danishmkvgti on April 21, 2012, 08:56:25 pm
Just a triple check guys (haven't got round to fitting them yet);

After all the discussion around the 7's/8's and the difference in results with the different gaps, will the set of BKR8EIX's that I bought be setup correctly out the box for my completely engine standard k03 GTI on a 2006 plate?

Thanks.

Only when pushing the envelope you have to gap them to 0,6. I got the info from VrsAlex and it worked for me as i had some slight missfires in mine even with these plugs fitted  :smiley:

What's pushing the envelope mean Jake?  :scared:
You're a k04 and running several engine mods aren't you, so I'm unlikely to need to change them for my factory setup, right?

I'm trying to max out the K04 on the Cupra engine with what mods i can get my hands on, you should be fine, just using these over the 7 helps a great deal  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: vRSAlex on April 22, 2012, 09:08:13 am
On a standard, a stage 1 car or if you only do short miles then I would stick with the 7's.  The 8's are just too cold and this was evident when I removed them from my car.  The 7's have since been burning perfectly.
Title: Re: NGK Iridiums BKR8EIX
Post by: SteveP on April 22, 2012, 10:18:41 pm
Enough with the pictures Robin.
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on April 23, 2012, 12:07:03 am
I may be wrong but all this "specific" spark plug nonsense is exactly that.

Im guessing a lot of folk have bought these, when actually a set of OEM plugs would have been absolutely fine.
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on April 23, 2012, 12:32:49 am

I may be wrong but all this "specific" spark plug nonsense is exactly that.

Im guessing a lot of folk have bought these, when actually a set of OEM plugs would have been absolutely fine.


....I have my spark plugs changed every 20k miles (K03 Revo Stage 2) and have in the past used OEM plugs but this time asked Jim at JKM what he recommended. He said that OEM Platinum would be fine but Iridium would be better, explaining the differences, also with Copper as discussed earlier. It wasn't a question of whether a colder plug or not unless a more modified car. I tend to take his advice, hence Iridium heavenly 7.
Title: Re: NGK Iridiums BKR8EIX
Post by: danishmkvgti on April 23, 2012, 02:11:55 am
I may be wrong but all this "specific" spark plug nonsense is exactly that.

Im guessing a lot of folk have bought these, when actually a set of OEM plugs would have been absolutely fine.

Having had massive missfires with stock plugs when i tried boost 9 on my sps on both gti k04 software and the current beta software i can say these have made a difference on my car. up until then i have had same opinion as RR  :smiley:
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on April 23, 2012, 07:20:47 am
I may be wrong but all this "specific" spark plug nonsense is exactly that.

Im guessing a lot of folk have bought these, when actually a set of OEM plugs would have been absolutely fine.

On your state of tune rich, oem ones are fine, but stage 2 and up , 8's are better, as I've found out on my own Stage 2 car.
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on April 23, 2012, 08:10:34 am
But how do you know that a set of fresh OEM plugs would have 'felt' better?

Back to back dyno testing anyone?
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on April 23, 2012, 08:17:43 am

But how do you know that a set of fresh OEM plugs would have 'felt' better?

Back to back dyno testing anyone?


....Would logging show up anything? (says he who is illiterate in all the data language).
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on April 23, 2012, 08:39:17 am
But how do you know that a set of fresh OEM plugs would have 'felt' better?

Back to back dyno testing anyone?
I'm no longer getting vcds errors, of lean running since installing 8's. Also the car starts from cold with a flick , rather then not wanting to start very well from cold. some people have said about improved mpg, but that I haven't noticed any difference .
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on April 23, 2012, 02:26:04 pm
I may be wrong but all this "specific" spark plug nonsense is exactly that.

Im guessing a lot of folk have bought these, when actually a set of OEM plugs would have been absolutely fine.

There is a back to back dyno test on VAGOC looking a Okada coils

Compares OEM coils/OEM plugs vs. OEM coils/uprated plugs (can't remember which but think they might be these very ones) vs. Okada coils/OEM plugs vs. Okada coils/uprated plugs

Verdict - plugs make a difference. I think the Okada/uprated plugs was making 15bhp more or so. Most of this was down to the coils, but there was a measurable difference between the plugs in all set ups

anyway, even if they made NO difference they're cheaper than OEM so there's still no reason to go OEM.
Title: Re: NGK Iridiums BKR8EIX
Post by: bacillus on April 23, 2012, 02:34:03 pm
There is a back to back dyno test on VAGOC looking a Okada coils

Compares OEM coils/OEM plugs vs. OEM coils/uprated plugs (can't remember which but think they might be these very ones) vs. Okada coils/OEM plugs vs. Okada coils/uprated plugs

Verdict - plugs make a difference. I think the Okada/uprated plugs was making 15bhp more or so. Most of this was down to the coils, but there was a measurable difference between the plugs in all set ups

Got a link for that comparison?
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on April 23, 2012, 02:43:06 pm
http://www.audizine.com/forum/showthread.php/380963-review-2-Okada-vs.-rev-D-vs.-rev-R-coilpacks-Bosch-FR6DTC-vs.-NGK-5238-spark-plugs
Title: Re: NGK Iridiums BKR8EIX
Post by: bacillus on April 23, 2012, 03:10:03 pm
http://www.audizine.com/forum/showthread.php/380963-review-2-Okada-vs.-rev-D-vs.-rev-R-coilpacks-Bosch-FR6DTC-vs.-NGK-5238-spark-plugs

 :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: Sammy on May 18, 2012, 05:57:34 pm
Am quite confused on whether to go for the 7 or 8's as this thread is completely mixed opinions, I live in london city so alot of city traffic and i am going to go to stage 2+ with k04, What would be the best suited to me then?
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on May 18, 2012, 06:50:18 pm
Stage 2+ would benefit from 8s
Title: Re: NGK Iridiums BKR8EIX
Post by: micky 32 on June 13, 2012, 10:50:19 am
But how do you know that a set of fresh OEM plugs would have 'felt' better?

Back to back dyno testing anyone?
I'm no longer getting vcds errors, of lean running since installing 8's. Also the car starts from cold with a flick , rather then not wanting to start very well from cold. some people have said about improved mpg, but that I haven't noticed any difference .

I have a nicely tuned KO4 and now running OEM plugs and i don't have any of the above symptoms. I was running Iridium 7's but got hold of OEM ones and my car runs just as good.. Personally i think OEM vs 7 vs 8 is not going to make much difference that it's worth the hassle.. This is my experience driving mine for 120k

 I have found though in my experience the 2.0T is fussy about plugs. Put in Bosch super's once and they didn't last 5k
You can't go wrong with OEM's anyway.

I always know when mine needs new plugs. Under WOT i get missfires and clouds of black smoke out the exhaust lol
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on July 03, 2012, 01:55:45 pm
I was reading from the NGK website about heat gradings.  They say that for every 75 - 100 bhp increase you should go a step colder. That being said the old standard heat range was six for a 2.0 tfsi.  Based on that the 7s would be good for upto 300bhp and anything over 300bhp the 8s.  I have 8s and have about circa 260 to 270bhp.  I do lots of short runs now I have moved so i am thinking of switching back to the 7s.  As the plugs will never reach the 450c temp it needs to burn of the carbon and I very rarely do long high speed runs and no track driving. I have copied a link  to the article I was reading.


http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp (http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp)
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on July 03, 2012, 02:05:36 pm
I was reading from the NGK website about heat gradings.  They say that for every 75 - 100 bhp increase you should go a step colder. That being said the old standard heat range was six for a 2.0 tfsi.  Based on that the 7s would be good for upto 300bhp and anything over 300bhp the 8s.  I have 8s and have about circa 260 to 270bhp.  I do lots of short runs now I have moved so i am thinking of switching back to the 7s.  As the plugs will never reach the 450c temp it needs to burn of the carbon and I very rarely do long high speed runs and no track driving. I have copied a link  to the article I was reading.


http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp (http://www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp)

added to the original review. thanks.
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on July 03, 2012, 02:24:57 pm
I fitted the 8's to my ed30 at stage 2, and I've since changed back to the Bosch OEM 7's and she runnings much stronger at top end, maybe a new dodgy plug but the car never seemed happy with them fitted. Perhaps stage 2+is better suited then at  stage 2 perhaps..  :confused:
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 03, 2012, 02:29:30 pm
.
NGK Iridium 7's is what JKM recommended for my Revo Stage 2 K03 GTI.
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on July 03, 2012, 02:32:21 pm
.
NGK Iridium 7's is what JKM recommended for my Revo Stage 2 K03 GTI.

so that would tie up with my findings too.  :happy2: though my bluefin doesn't request 130 bar , only 110..

8's for stage 2+cars, I'm guessing due to high temps and higher fuel demands etc
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on July 03, 2012, 03:06:58 pm
So all the crap and 9 page thread about cold spark plugs is ballony...... I thought so ;-)
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on July 03, 2012, 03:56:37 pm
So all the crap and 9 page thread about cold spark plugs is ballony...... I thought so ;-)

i never intend for this to become a debate about whether there's any benefit - my point was always that they're cheaper and hence are better £ for £ compared with OEM.

however 2 tuners (JKM and Awesome) seem to prefer these NGKs, and R-Tech promote Nology plugs? plus a link that demonstrates that plugs do seem to have an effect. there must be something to that...
Title: Re: NGK Iridiums BKR8EIX
Post by: TT-Turbo on July 04, 2012, 01:52:33 pm
Just to check the part numbers for a gti engine- BKR7EIX is 2667? And the BKR8EIX is 2668?
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 04, 2012, 02:23:52 pm
.
I know that I have advised this before, and probably already in this thread, but I believe it's very good advice to change plugs every 20k miles on a remapped car, regardless of which plugs they are - It maintains a consistent spark and helps keeps things running smoothly.
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 04, 2012, 02:33:19 pm
would you also advise changing stock plugs to ?????? when going from stock map to a Stage 2 (for example)? In other words, i've had my stock plugs now for about 18mths, but only had remap for a few weeks.... :confused:
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 04, 2012, 02:51:10 pm
.
Although VW don't suggest such a regular change of plugs, I still think it's a good idea. Afterall, VW are not writing their Handbook recommendations for anything other than their ex-factory cars.

As you are now running with a remap and it's also been 18 months (depending on your mileage) I would change plugs. I'm not suggesting that you'll get problems if you don't but only that's it's good maintenance on a tuned 2.0T FSI car.
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 04, 2012, 02:59:31 pm
well at idle its quite jittery now, since the remap i mean, like it's coughing (from the exhaust), although of course this could be to do with fuelling!!??
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 04, 2012, 03:05:36 pm

well at idle its quite jittery now, since the remap i mean, like it's coughing (from the exhaust), although of course this could be to do with fuelling!!??


....First and easy port of call is to change the plugs (I'm assuming from your earlier post that you haven't recently done so).

Fuelling issues usually only manifest themselves when the throttle is under load and the fuel pump is gasping a bit. The ECU does quite a bit to to automatically correct this but it's why you can get fuel cuts and it's why remapped folks usually upgrade their HPFP.

Modding is a slippery slope. You might have found the slope less steep if you had upgraded via Stage 1 instead of straight to Stage 2.

Which air intake are you using?

Someone with VCDS can probably diagnose issues for you.
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 04, 2012, 03:33:08 pm
had the plugs changed about 18mths ago (whilst on stock map), so i am assuming with your bog standard Golf plugs, then had Bluefin Stage 1 a few mths later, so that's why i decided to go straight to a custom Stage 2 remap with R Tech a few weeks ago, after returning to stock map of course! Don't get me wrong now, the difference is like chalk and cheese in terms of 'poke' and torque, it's just the spluttering (when idle) i get through the car/exhaust now that's making me ask questions!? I have a Twintake, you responded to me about this on a different thread about 15 min ago, lol!  :drinking:

I am going back to see Nick in a few weeks, but in the meantime he has advised that i change the N75 (see whether i can attain more than the 256bph i now apparently have!?)

Andrew
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 04, 2012, 03:50:22 pm
Hi Andrew  :smiley:

R-Tech Nick is an expert - You are in good hands  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 04, 2012, 03:52:23 pm
Yeap, sure am! Hearing mixed reviews about the iridium plugs, so confused!!  :confused:
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on July 04, 2012, 04:29:05 pm
would you also advise changing stock plugs to ?????? when going from stock map to a Stage 2 (for example)? In other words, i've had my stock plugs now for about 18mths, but only had remap for a few weeks.... :confused:

If it ain't broke...don't fix it...  :smiley:

leave them as they are chap. nothing wrong using Bosch products IMO.

I've tried NGK and found them worse, but that was the 8 heat rating and not the 7 stock rating.

I would only put cooler plugs in if your running higher fuel pressures. Revo Stage 2 and 2+onwards .

bluefin 1 and stage 2 on the 7's.
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 04, 2012, 06:22:33 pm
Well I now have an R Tech custom remap Stage 2, and tbh I have no idea wat type plugs I currently have, as the car was serviced with Kwikfit (oops!!!) I am waiting on them to get bak 2 me to tell me what type plugs they 'allegedly' fitted, then base my next move on that! :$
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 04, 2012, 08:25:02 pm
^^^^
Andrew,

Take Nick @ R-Tech's advice about plugs - He knows your individual car and he knows his stuff  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 04, 2012, 08:35:12 pm
Will do Robin, although he is only advising me 2 change the N75 and the fan, etc, its my choice for the plugs.
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 12, 2012, 11:50:23 pm
Found out the other day that i had 6s in my car, so as now at R Tech Stage 2, changing to Iridium 7s (NGKBKR7EIX) tomorrow, wonder if i'll notice any difference at all!?  :surprised:

Andrew
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 13, 2012, 08:32:31 am

Found out the other day that i had 6s in my car, so as now at R Tech Stage 2, changing to Iridium 7s (NGKBKR7EIX) tomorrow, wonder if i'll notice any difference at all!?  :surprised:

Andrew

....Brighter and smoother on acceleration perhaps but any difference will only be very subtle and Miss Placebo will be flashing her thighs at you in your passenger seat. It's not gonna feel like you just had a remap!
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 13, 2012, 09:49:08 am
Cheers Robin, should i use a standard gap of 0.8, or less?

Andrew
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 13, 2012, 09:58:17 am

Cheers Robin, should i use a standard gap of 0.8, or less?

Andrew

....I have no idea, Andrew. I leave all that technical stuff to JKM - I just drive the car.  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on July 13, 2012, 10:00:40 am

Cheers Robin, should i use a standard gap of 0.8, or less?

Andrew

....I have no idea, Andrew. I leave all that technical stuff to JKM - I just drive the car.  :happy2:

Standard gap should be fine for 99.99% of applications!
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 13, 2012, 10:05:15 am
Cheers, will i know if it's needs amending lower, ie. any tell-tale signs??

Andrew
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on July 13, 2012, 10:07:38 am
Cheers, will i know if it's needs amending lower, ie. any tell-tale signs??

Andrew


What power are you running?

Title: Re: NGK Iridiums BKR8EIX
Post by: h4rdy on July 13, 2012, 10:12:18 am
Just a bit of feedback.

I fitted some of these about 3 months ago and I think they are shot already.

It won't be the coilpacks as they are fairly new and there is no fault but I think they are just to cold and I get a bit of hesitation at low revs accelerating.

They have been ok but I am going to put the OEM back in and see what happens.

Over and out.
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 13, 2012, 10:15:45 am
.
I'm running on NGK Iridium 7's on a Revo Stage 2 K03 GTI and without any problems. I was advised by JKM that 7's were the most appropriate for my mods/power.
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on July 13, 2012, 10:20:19 am
Just a bit of feedback.

I fitted some of these about 3 months ago and I think they are shot already.

It won't be the coilpacks as they are fairly new and there is no fault but I think they are just to cold and I get a bit of hesitation at low revs accelerating.

They have been ok but I am going to put the OEM back in and see what happens.

Over and out.


have you taken them out? What do they look like?
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 13, 2012, 10:24:55 am
I spoke to the manufacturer directly last week and they have advised if the 7s are too cold still, there is an exact match but in 6, so i will just see how the 7s today fair!?
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on July 13, 2012, 10:25:34 am
Are you running a map or not?

Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 13, 2012, 10:37:01 am
Yes, i have an R Tech Custom Map Stage 2, only had it for about 4 weeks now, and i said, have been running on 6s (Platinum i think) for last 15 mths or so. Idle now is quite rough, ie. since the remap, but that could be down to a number of things, but for £30 or so, i think it might be worth taking a chance, see if it improves!?
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on July 13, 2012, 10:45:51 am
15months... how many miles? Plugs will degrade quicker as your running stage 2.

Worth a shot at some new '7's maybe.  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 13, 2012, 10:48:22 am

15months... how many miles? Plugs will degrade quicker as your running stage 2.


....Exactly why I change my plugs every 20k miles.  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 13, 2012, 10:50:21 am
TBH, i only do about 6000 miles per year, so have done perhaps 8000 in last 15mths or so. I've nothing to lose i guess by changing to the Iridium 7s...
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on July 13, 2012, 10:51:30 am
speak with Nick - i think he prefers Nology. they're more expensive tho, £40 a set
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 13, 2012, 10:53:59 am
did a bit of research on these on ye olde web and kept getting the words 'snake oil'!!  :popcornsoda:
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on July 17, 2012, 04:03:16 pm
Since refitting the 7s my mpg has gone back upto 37ish on a run. I could barely get above 30mpg with the 8s fitted on a run. The engine is running smoother now and seems to pull better. I think for normal driving the 8s are probably a bit too cold. When I removed them they were fouled so they werent getting hot enough to burn of the carbon deposits.
Title: Re: NGK Iridiums BKR8EIX
Post by: Saintsteve on July 17, 2012, 05:12:30 pm
I found the same . Better on 7's then 8's too.
Title: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 11:46:43 am
I fitted these Iridium 7s about 10 days ago, after having Platinum 6's for the previous 16 mths. To be honest, i'm not sure if i will stick with the 7s!? Maybe it's just me, but i've found it takes 2 or 3 turns to start in the morning now; with the 6's it started 1st time hail, rain or snow! This morning (last used on Saturday) it took about 3 turns AND started quite gingerly, does anybody else have this?? It just seems ironic that all this started IMMEDIATELY after upping to the 7's...... :sad1:

Andrew

Title: Re: NGK Iridiums BKR8EIX
Post by: bacillus on July 23, 2012, 12:03:35 pm
I fitted these Iridium 7s about 10 days ago, after having Platinum 6's for the previous 16 mths. To be honest, i'm not sure if i will stick with the 7s!? Maybe it's just me, but i've found it takes 2 or 3 turns to start in the morning now; with the 6's it started 1st time hail, rain or snow! This morning (last used on Saturday) it took about 3 turns AND started quite gingerly, does anybody else have this?? It just seems ironic that all this started IMMEDIATELY after upping to the 7's...... :sad1:

Andrew

Out of interest, how old is your battery?
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 12:11:53 pm
Well bought my GTi new back in April 2005, so a bit over 7 years....??   :confused:
Title: Re: NGK Iridiums BKR8EIX
Post by: fab5freddy on July 23, 2012, 01:07:40 pm
I know there meant to be pre-gapped, but did you check the gap was correct before install?
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 01:22:51 pm
had them fitted by an independent VW, etc Specialist and as far as i know, they were 'gapped' at the standard 0.8mm, which apparently is supposed to cover 99.99% of situations. Wondering though, although wouldn't even know how, if i should change the gap!!??  :confused:
Title: Re: NGK Iridiums BKR8EIX
Post by: RedRobin on July 23, 2012, 01:30:21 pm

had them fitted by an independent VW, etc Specialist and as far as i know, they were 'gapped' at the standard 0.8mm, which apparently is supposed to cover 99.99% of situations. Wondering though, although wouldn't even know how, if i should change the gap!!??  :confused:


....If they work, don't mend them! I don't think that changing the gap should be done unless by an expert with the right tools. If the gap is not what it's supposed to be, then wouldn't you feel that something is wrong and needs mending?
Title: Re: NGK Iridiums BKR8EIX
Post by: fab5freddy on July 23, 2012, 01:39:50 pm
^^^ not sure if you read the earlier post Robin, but think that's the point, he's having trouble starting the car.  :innocent:
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 02:03:56 pm
cheers Freedy, yes, if i leave the car for more than 24hrs, it's slow in starting, totally different to how it was with the Platinum 6's. I wonder if it's got anything to do with the fact that the car had a custom map 5 wks ago whilst the 6's were still in!? Just seems a huge coincidence in my eyes anyway that i've only had starting problems since upgrading to the 7's...  :sad1:
Title: Re: NGK Iridiums BKR8EIX
Post by: E30Dom on July 23, 2012, 02:52:23 pm
cheers Freedy, yes, if i leave the car for more than 24hrs, it's slow in starting, totally different to how it was with the Platinum 6's. I wonder if it's got anything to do with the fact that the car had a custom map 5 wks ago whilst the 6's were still in!? Just seems a huge coincidence in my eyes anyway that i've only had starting problems since upgrading to the 7's...  :sad1:

Who fitted them? Are they tight?
Title: Re: NGK Iridiums BKR8EIX
Post by: bacillus on July 23, 2012, 02:54:24 pm
My money is on the battery coincidently failing...
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 03:24:34 pm
I had them fitted by a very reputable independent specialist in S. Yorkshire, so can't imagine they weren't fitted correctly and/or tightly, although i wouldn't have a clue how to check tbh!!?? Ref the battery, how does one check the life left in one of these??  :rolleye:
Title: Re: NGK Iridiums BKR8EIX
Post by: bacillus on July 23, 2012, 03:32:06 pm
I had them fitted by a very reputable independent specialist in S. Yorkshire, so can't imagine they weren't fitted correctly and/or tightly, although i wouldn't have a clue how to check tbh!!?? Ref the battery, how does one check the life left in one of these??  :rolleye:

Do you have a multimeter to check voltage?
If not somewhere like Halfords can check it for you.
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 03:37:30 pm
might actually get it checked tomorrow, just in case, just seems a bit of a coincidence that it happens now that i have changed my plugs....

Cheers

Andrew

Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on July 23, 2012, 03:58:36 pm
i think it's likely the new plugs have highlighted a weakness somewhere else in the electrical system that was being masked before by the warmer plugs
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 04:06:39 pm
oh great, lol, all i need, a weakness such as perhaps??????
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on July 23, 2012, 04:31:26 pm
battery and coil packs spring to mind for example
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 04:35:00 pm
well battery has never been changed in 7 years, and i think my coils were changed back in 2007 (perhaps 2008) under a recall. Should either/both have been changed by now???  :confused:
Title: Re: NGK Iridiums BKR8EIX
Post by: Apollo on July 23, 2012, 04:43:12 pm
I had them fitted by a very reputable independent specialist in S. Yorkshire, so can't imagine they weren't fitted correctly and/or tightly, although i wouldn't have a clue how to check tbh!!?? Ref the battery, how does one check the life left in one of these??  :rolleye:

My opinion - Go back to these people explain your problem - They should have no problem checking the work they carried out is 100% and also checking to see what your 'new' problem is and if it is related at all. Rather than chase this problme ensure it is not related to the plug change first.
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 23, 2012, 04:51:28 pm
cheers, might well do, as well as check battery life tomorrow, narrow down the list so-to-speak!? Car's, can't live with them, can't live without them!!  :indifferent:
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 27, 2012, 04:42:18 pm
Well bang goes that theory surely!? My 7+ yr battery has a Start Capacity of 84% (Good Battery), and my Alternator Test stated Ripple OK, whatever that means, but showed 14.22 V Good!
Could it just be the fact that its now got colder plugs? Surely though if battery got that much life left, it would have no problem adapting to these colder plugs!? :-o
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on July 27, 2012, 04:48:16 pm
Ive just realise that the NGK headquarters UK is about a mile from my house... might pop in to see if I can get some cheap plugs.  :happy2:
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on July 27, 2012, 05:09:02 pm
Well bang goes that theory surely!? My 7+ yr battery has a Start Capacity of 84% (Good Battery), and my Alternator Test stated Ripple OK, whatever that means, but showed 14.22 V Good!
Could it just be the fact that its now got colder plugs? Surely though if battery got that much life left, it would have no problem adapting to these colder plugs!? :-o

have you checked your coils?

my 7 year old battery has no problems at all with colder plugs
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 27, 2012, 05:22:10 pm
And does start with first turnover every time may I ask? Had the coils changed under Recall bout 4 or 5 yrs back! Maybe I should just get the Okada Plasmas, lol!? Expensive way to check thou! :-S
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on July 27, 2012, 06:46:27 pm
it fires up right away, even from cold
Title: Re: NGK Iridiums BKR8EIX
Post by: gigolo456 on July 27, 2012, 06:52:04 pm
Hmmm, mine did on 6's, maybe I should revert back!?
Title: Re: NGK Iridiums BKR8EIX
Post by: 56OctyVRS on July 28, 2012, 08:18:57 am
Perhaps when installing one of the plugs they damaged an electrode, which is why it is not running correctly. I found my car ran better with the 7s than 6s. I tried the 8s for a while but they started to foul so I switched back the 7s and all was good again. If you have your old plugs I would refit them and see if the problem goes away.
Title: Re: NGK Iridiums BKR8EIX
Post by: sub39h on August 30, 2012, 08:40:40 pm
Just a quick update on this - I've got an unmapped K03 and i still haven't had any issues with this plug. done over 12k miles on them now. varied driving conditions, but limited spirited driving due to not being able to afford petrol and mainly motorway miles.

i had a single incidence of a misfire whilst sat in traffic a couple of months ago but has not repeated itself since. no fault codes. no problems with cold starting.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: TT-Turbo on August 31, 2012, 09:22:39 am
I had my BKR8EIX plugs in for a similar mileage on my K03 also, they seemed to work well and have had no misfires but when I checked them recently I found this-

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fac115%2Fgocartingd%2Fa64579974ddd4f5bed71f16a83c30a54.jpg&hash=207872050cbe68761aca48f6ff8a928ef67d9ff7)

They were massively coke'd up and had loads of carbon deposits. I changed back to the hotter "7" plug and since the engine actually feels like it's got quicker which may have over the last 600 miles burnt off excessive carbon deposits. Worth thinking about, they may not be any noticeable running issues but since changing back the engine seems stronger.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: RedRobin on August 31, 2012, 10:05:28 am

I had my BKR8EIX plugs in for a similar mileage on my K03 also, they seemed to work well and have had no misfires but when I checked them recently I found this-

They were massively coke'd up and had loads of carbon deposits. I changed back to the hotter "7" plug and since the engine actually feels like it's got quicker which may have over the last 600 miles burnt off excessive carbon deposits. Worth thinking about, they may not be any noticeable running issues but since changing back the engine seems stronger.


....I think this illustrates very well why it's good practice on a tuned car to more regularly change plugs than suggested in the car Handbook. I change mine (iridium heavenly sevens) every 20k miles.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: 56OctyVRS on August 31, 2012, 10:32:31 am
I had my BKR8EIX plugs in for a similar mileage on my K03 also, they seemed to work well and have had no misfires but when I checked them recently I found this-

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fac115%2Fgocartingd%2Fa64579974ddd4f5bed71f16a83c30a54.jpg&hash=207872050cbe68761aca48f6ff8a928ef67d9ff7)

They were massively coke'd up and had loads of carbon deposits. I changed back to the hotter "7" plug and since the engine actually feels like it's got quicker which may have over the last 600 miles burnt off excessive carbon deposits. Worth thinking about, they may not be any noticeable running issues but since changing back the engine seems stronger.

Thats how mine looked. Unless you drive the car hard you wont burn off the carbon deposits with the 8s. These are a plug more for track days than normal driving. Since fitting the 7s my car hasnt missed a beat and feels loads beter to drive.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: MAT ED30 on August 31, 2012, 12:32:48 pm
Mine were the same as I had a misfire so pulled the plugs out and everyone fecked
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Saintsteve on August 31, 2012, 05:26:28 pm
I too ditched the 8's back to the oem 7's and confirm mine feels a lot stronger especially at top Revs.
Title: Re: NGK Iridiums BKR8EIX
Post by: rich83 on August 31, 2012, 09:57:40 pm
I may be wrong but all this "specific" spark plug nonsense is exactly that.

Im guessing a lot of folk have bought these, when actually a set of OEM plugs would have been absolutely fine.

On your state of tune rich, oem ones are fine, but stage 2 and up , 8's are better, as I've found out on my own Stage 2 car.

Ohh.... looks like i was right after all...  :innocent:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Saintsteve on August 31, 2012, 10:41:43 pm
Yes rich, alot of stuff that becomes the overnight must have , sometimes pays dividends to leave the car as the manufacture intended..... Best stop there....  :signLOL:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Hurdy on September 01, 2012, 07:52:18 am
I had a brief encounter with Denso iridiums when I had the ED30. I soon moved back to the stock Bosch jobbies and they are in my opinion the best plugs for the job up to stage 2+. They lasted longer, coked up a LOT less and gave a better running engine at start up and when hot. :smiley:

I've not tried the NGK iridiums, but I doubt they will give any discernable advantage over stock. :smiley:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Thor on September 02, 2012, 01:10:49 pm
I may be wrong but all this "specific" spark plug nonsense is exactly that.

Im guessing a lot of folk have bought these, when actually a set of OEM plugs would have been absolutely fine.

On your state of tune rich, oem ones are fine, but stage 2 and up , 8's are better, as I've found out on my own Stage 2 car.

Ohh.... looks like i was right after all...  :innocent:

So what your saying Rich is OEM ftmfw
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: GS WAX on September 02, 2012, 04:29:55 pm
So for everyday pottering about too and from work and now its getting towards winter its Prob best i switch back to the 7's.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: alexperkins on September 14, 2012, 02:43:22 pm
I still think on Stage 2 these offer better performance. I had some serious issues with stock plugs on a stage 2 map.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Saintsteve on September 14, 2012, 06:34:49 pm
I still think on Stage 2 these offer better performance. I had some serious issues with stock plugs on a stage 2 map.

Weird as I have the same map/car setup and now find the opposite  :signLOL:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Aaroncupra on September 14, 2012, 06:57:29 pm


My mk2 Leon cupra seemed to run ok on the 8's on a stage 3 map (350 odd bhp) not had a look at them yet tho,

Probably gonna change back to the 7's for winter tho 
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: 56OctyVRS on September 14, 2012, 09:11:18 pm
I think the 8s are fine if you do long drives and use the power a lot. I now only really do local commuting and the 8s are too cold for that. They carboned up very badly and made my engine run very harsh. Initially they were fine when new but after carboning up they werent. I switched back to the 7s and the car is running fine again. The 8s are an ideal track day plug when you want to use the power for longer  but I think the 7s are more suited to road applications no matter what power level or turbocharger you have fitted.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spoonie on September 12, 2013, 01:47:14 pm
Sorry to resurrect and old topic but for me its quite current, so I thought I'd post my experiences.

I have 2007 Octavia vRS 2.0TFSI and the car currently has about 58k miles on the clock. I wanted to carry out some self maintenance and bought new coils and plugs from Awesome. The car had original Bosch plugs and coils and its been fitted with a stage 2 tune. My problem with the car has always been that every now and then the car has some trouble starting when its cold, so I figured that it must be the plugs. I've read quite a few topics about this and realized that cold starts is pretty a common issue for the TFSI engine. Therefore, changed the coil packs and the plugs and now it does it almost every single time. So, based on this I probably will be changing the plugs to either 7's or maybe even 6's. The problem is pretty much the same what gigolo456 had on the previous page.

Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: sub39h on October 14, 2013, 04:40:51 pm
My plugs were finally changed last month for some Nology ones during a service with Alex at AKS Tuning. In isolation I was very happy with the performance of the NGKs, but having had them changed I feel my car is more responsive now. I did have several things done so it is difficult to say exactly what the reason is, but Alex feels it may have been the plugs.

I don't withdraw my recommendation for them - they are half the price of OEM ones and last about as long. But they are not upgrades and should not be treated as such - at least not on an unmapped K03 car.

I would have liked to have done a similar review on the Nology plugs but sadly I don't drive my car regularly enough anymore to be able to make in depth observations.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: N8KOW on October 26, 2013, 01:56:48 am
Just read the whole thread, so many conflicting views  :confused: Still going to give them ago on mine  :driver:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spoonie on October 29, 2013, 01:39:55 pm
Sorry to resurrect and old topic but for me its quite current, so I thought I'd post my experiences.

I have 2007 Octavia vRS 2.0TFSI and the car currently has about 58k miles on the clock. I wanted to carry out some self maintenance and bought new coils and plugs from Awesome. The car had original Bosch plugs and coils and its been fitted with a stage 2 tune. My problem with the car has always been that every now and then the car has some trouble starting when its cold, so I figured that it must be the plugs. I've read quite a few topics about this and realized that cold starts is pretty a common issue for the TFSI engine. Therefore, changed the coil packs and the plugs and now it does it almost every single time. So, based on this I probably will be changing the plugs to either 7's or maybe even 6's. The problem is pretty much the same what gigolo456 had on the previous page.



Further to my earlier post, I can confirm that plugs had nothing to do with the start issue. It was actually the battery. Idle is definitely a lot smoother when compared to OEM plugs but other than that it is very difficult to feel the difference. I might still get set a of 7's as I feel that the 8's are a tad too cold for my daily commute (i.e. won't reach optimal operating temperature) and might cause unnecessary carbon build up.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: akbarirfan on November 12, 2013, 01:36:31 pm
So for a Stage 1 GTi (250bhp) would heat rating 6 be best?

Thanks
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: rich83 on November 12, 2013, 03:16:44 pm
So for a Stage 1 GTi (250bhp) would heat rating 6 be best?

Thanks

Nology silver plugs... thats all you need!
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: akbarirfan on November 12, 2013, 05:04:06 pm
Ah ok, just done a quick search but can't see where they can be purchased from..any ideas?

Thanks
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: rich83 on November 12, 2013, 05:22:30 pm
Ah ok, just done a quick search but can't see where they can be purchased from..any ideas?

Thanks

Ebay.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Scottymon on November 12, 2013, 06:14:40 pm
So for a Stage 1 GTi (250bhp) would heat rating 6 be best?

Thanks

Nology silver plugs... thats all you need!

Sure is... although you need more of them than Iridium/Platinums.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spoonie on January 29, 2014, 06:34:14 pm
I fitted the 8's last September and here is the result. Bought a set of 7's and installed them today so let's see how they work.
(https://lh4.googleusercontent.com/-uqGq5QOXhVA/UulHt4lQ5QI/AAAAAAAAB6M/8RcBfav8ZBc/w708-h531-no/DSCN1791.JPG)
(https://lh6.googleusercontent.com/-2HUQ-ovN-Xk/UulHt96eefI/AAAAAAAAB6I/OxajP0uByjM/w708-h531-no/DSCN1794.JPG)

These were the OEM plugs that I took out and replaced with 8's. The OEM plugs had about 55k miles on them
(https://lh3.googleusercontent.com/-vqI0MCmZZc4/Uid27mxG_BI/AAAAAAAABMo/82HoWSyzuM0/w708-h531-no/DSCN1493.JPG)
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: 56OctyVRS on January 29, 2014, 11:24:30 pm
Some carbon build up on the end of those 8s.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spoonie on January 30, 2014, 06:19:29 am
Indeed, although not as much as TT-Turbo had on page 13. Changed these since the past two weeks I've been getting odd idle when cold starting the car (we had -11 Celsius this morning). Other than that never had any other running issues with them. VCDS logs pressure drop between turbo an TB at ignition. Give it minute to settle, erase codes and all is good... :stupid:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: gobbleplease on February 08, 2014, 12:58:21 pm
I fitted the 8's last September and here is the result. Bought a set of 7's and installed them today so let's see how they work.
(https://lh4.googleusercontent.com/-uqGq5QOXhVA/UulHt4lQ5QI/AAAAAAAAB6M/8RcBfav8ZBc/w708-h531-no/DSCN1791.JPG)
(https://lh6.googleusercontent.com/-2HUQ-ovN-Xk/UulHt96eefI/AAAAAAAAB6I/OxajP0uByjM/w708-h531-no/DSCN1794.JPG)

These were the OEM plugs that I took out and replaced with 8's. The OEM plugs had about 55k miles on them
(https://lh3.googleusercontent.com/-vqI0MCmZZc4/Uid27mxG_BI/AAAAAAAABMo/82HoWSyzuM0/w708-h531-no/DSCN1493.JPG)


Oem for the win I think ! Has anyone actually took the OEM plugs out and thought feckin hell ?
Changing for changings sake I think. I'm going to pull a plug soon and check I think if they look good in be sticking with OEM
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spoonie on February 10, 2014, 09:40:42 am
Oem for the win I think ! Has anyone actually took the OEM plugs out and thought feckin hell ?
Changing for changings sake I think. I'm going to pull a plug soon and check I think if they look good in be sticking with OEM

I agree. Currently idle a lot smoother but that's due to brand new plugs. I think I will order a set of original plugs before the summer and just stop there as I never had any issues with the OEM plugs.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: N8KOW on February 10, 2014, 10:30:34 am
My 8's have arrived  :happy2:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: vRSAlex on February 10, 2014, 05:52:59 pm
Stick with 7's imo.  8's are crap for day to day.  Foul up.  7's burn so much cleaner.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: MAT ED30 on February 10, 2014, 09:01:06 pm
What he ^^^ bloody crap for day to day driving
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: phelan77 on February 15, 2014, 10:02:56 am
Nice info on the NGK plugs..will be trying these next... :happy2:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: magicgilbert on March 08, 2014, 10:20:20 pm
I was going to get the 8's but reading through the pages I might be better getting the 7's I have a remapped ED30 but I'm only doing short journey and the engine barley gets to temp the tine I get to work
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: 56OctyVRS on March 08, 2014, 11:19:20 pm
I was going to get the 8's but reading through the pages I might be better getting the 7's I have a remapped ED30 but I'm only doing short journey and the engine barley gets to temp the tine I get to work

Id just stick with oe Bosch plugs
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: George on March 31, 2014, 01:01:52 pm
Where are you guys getting your NGK 7s from? I've found them on Opie Oils but £45 seems a bit steep!
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: George on March 31, 2014, 01:23:02 pm
For future reference I got them from Euro Car Parts:

http://www.eurocarparts.com/search/408992990/p/car-parts/?408992990&1&1&000301

I cross referenced their SKU number with the one on their eBay advert that confirms these are BKR7EIX

£33.71 with UPS next day delivery  :happy2:
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spoonie on April 01, 2014, 12:02:35 pm
Ordered mine from here (http://www.ebay.com/itm/161062214707?var=460195618543&ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649). £27,75 shipped to Finland and took about a week to get here.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: toosmiles on April 01, 2014, 12:58:37 pm
just oredered some 7's,ive got 8's in atm and i could tell they were lumpy on idle
plus i only do short trips,ill takepics of them to see what there like over the year and 4,000 miles
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: toosmiles on April 02, 2014, 05:44:36 pm
1 year and 4000 miles
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020662_zpse263cd4a.jpg&hash=35cffffe607683c5735f645ad3f4c55bc6a87419)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020663_zps7e17ea8f.jpg&hash=ce0c65412b1ecc8beeccc59c548ded289942187e)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020664_zps640ece88.jpg&hash=5321c2ce6712e56fd0e587e4199c9d94f454e93c)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020665_zps629da006.jpg&hash=d76454e20f4c5ae23952f6b60e61105581f74e1a)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020667_zps6df01f9f.jpg&hash=ff107d2447e7676711370702d20da31c7dde8e9f)
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spoonie on April 02, 2014, 06:52:06 pm
Definetly carbon build up, but what has happened to the plug in the first pic. Perhaps some water getting in? I know another Cupra owner who had the same issue of water getting in.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: greygti on April 06, 2014, 12:25:56 pm
1 year and 4000 miles
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020662_zpse263cd4a.jpg&hash=35cffffe607683c5735f645ad3f4c55bc6a87419)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020663_zps7e17ea8f.jpg&hash=ce0c65412b1ecc8beeccc59c548ded289942187e)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020664_zps640ece88.jpg&hash=5321c2ce6712e56fd0e587e4199c9d94f454e93c)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020665_zps629da006.jpg&hash=d76454e20f4c5ae23952f6b60e61105581f74e1a)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020667_zps6df01f9f.jpg&hash=ff107d2447e7676711370702d20da31c7dde8e9f)


There in a rite state for 1 year and 4000 miles , I've had mine in 2 years and done 9000 miles and they look mint
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: N8KOW on April 06, 2014, 06:15:39 pm
Just put mine in and car started sweet as a nut, alot smoother. I'll change mine every 5k for the sake of £25
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Shaw on April 08, 2014, 07:18:59 pm
1 year and 4000 miles
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020662_zpse263cd4a.jpg&hash=35cffffe607683c5735f645ad3f4c55bc6a87419)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020663_zps7e17ea8f.jpg&hash=ce0c65412b1ecc8beeccc59c548ded289942187e)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020664_zps640ece88.jpg&hash=5321c2ce6712e56fd0e587e4199c9d94f454e93c)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020665_zps629da006.jpg&hash=d76454e20f4c5ae23952f6b60e61105581f74e1a)
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fk1cupra%2FK1%2FP1020667_zps6df01f9f.jpg&hash=ff107d2447e7676711370702d20da31c7dde8e9f)

I'd be concerned about that rusty plug. Water getting into the plug bores is responsible for the engine fires I hear about. :/


Sent from my iPad using Tapatalk
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: toosmiles on April 09, 2014, 04:30:38 pm
they were in a hell of a state like,i think the water on the plugs etc was more down to me cleaning the engine bay,went abit mad with the degreaser and hose lol
good heads up on the misfire though m8 cheers
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: sub39h on June 03, 2014, 04:47:29 pm
1 year and 4000 miles

do you run without an engine cover? one of the centre cylinders (2 or 3, can't remember which) can accumulate water which soaks into the liner on the bonnet and drips into that cylinder if you run with the engine cover off. That might explain the rusty plug.

Since I wrote this review, I had the NGKs swapped for Nologys on vRSAlex's advice. He has since withdrawn this advice and fitted NGK 7s to my car. I can feel no perceivable difference between the 3, and my plugs looked nothing like yours after considerably longer use.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: SurreyED30 on June 03, 2014, 06:35:40 pm
Had mine in for 2400 miles on stage 2 tune and look completely fine to me, car starts, idled and run like a dream.

I will be changing them for a fresh set for piece of mind n all that around September time just to stay on top of maintenance
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: Spankiee on October 27, 2014, 12:48:00 pm
whats the general opinion then guys??

standard edition 30. had my plugs changed at last vw service 3000 miles/ 6 months ago. any point swapping to these or are vw ones just as good.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: bacillus on October 27, 2014, 10:27:15 pm
For standard car the oem plugs should be more than adequate for 20k miles.
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: K9 on May 06, 2015, 07:43:06 pm
Bump this thread up!  :happy2:

Ordered a set of BKR7EIX from this guy http://www.ebay.com/itm/161062214707?_trksid=p2060353.m2749.l2649&var=460195618543&ssPageName=STRK%3AMEBIDX%3AIT

will be changing from oem to these and see what will change
Title: Re: NGK Iridiums BKR8EIX ***12k mile update on page 13***
Post by: r5gtt on November 22, 2015, 01:48:55 am
Bump this thread up!  :happy2:

Ordered a set of BKR7EIX from this guy http://www.ebay.com/itm/161062214707?_trksid=p2060353.m2749.l2649&var=460195618543&ssPageName=STRK%3AMEBIDX%3AIT

will be changing from oem to these and see what will change
Bump please  :happy2:

Just ordered a set as my idles a little poor and I'm guessing the plugs have had it.

Will pull them out and have a nose when weather gets better haha

M