MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: jedi-knight83 on July 10, 2012, 04:09:42 pm
-
I decided to make a different thread as its nothing to do with either the open cone or the enclosed filter as the noise was there with both set up's
I've uploaded a youtube video. Ignore the actual video as I stuck the camera down in the cabin but if you turn it up you can hear the whistle on acceleration. And its just in the rev band that it whistles after each gear change.
It sounds like the noise you might expect from a brake squealing and ive checked and its in the pitch of high E so you know what your listening for :)
http://www.bgfl.org/custom/resources_ftp/client_ftp/ks2/music/piano/index.htm (E1 on the keyboard)
This video is with the open filter fitted. Whistle occurs at:
0:28-0:29
0:41-0:43
And most noticeable on the video on gear changes between 1:00-1:10
d=1&t=20s
Its harder to hear on the video as its picking up a lot of background noise but in the car on your own its more noticeable by ear.
Is this normal / expected? Just a downside of an aftermarket intake?
-
^^^^
Crikey! So I turned it up on my super-duper Shure closed-back headphones and nearly got my ears ripped off!
I can't hear the whistle you are referring to at all :confused:
I know exactly what High E-minor sounds like as I have a flute concert tuned to that key.
-
^^^^
Crikey! So I turned it up on my super-duper Shure closed-back headphones and nearly got my ears ripped off!
I can't hear the whistle you are referring to at all :confused:
I know exactly what High E-minor sounds like as I have a flute concert tuned to that key.
Really? I guess i know what im listening for..
Go to 1min in as as im pulling through the gears you can hear it just before and after the gear change.
-
thats the same noise my maxogen made so i took it off
i want to try another intake but not spending £300+ until i know for sure it won't sound like that again
-
thats the same noise my maxogen made so i took it off
i want to try another intake but not spending £300+ until i know for sure it won't sound like that again
....Some folks (not me as I don't have the hearing range of a dog) have reported whistles on the Forge Twintake too.
-
I suspect that normal for your intake. The stock intake hides a myriad of strange noises.
-
Go to 1min in as as im pulling through the gears you can hear it just before and after the gear change.
....Ah! Now I hear it! I was listening for a whistle which was in sync with the revs etc. It's not in sync and sounds more like an extended squeak than what I call a whistle. Sounds like air from a rubber balloon under high pressure, which I can understand folks thinking it's a leak.
Could it be the DV?
-
Go to 1min in as as im pulling through the gears you can hear it just before and after the gear change.
....Ah! Now I hear it! I was listening for a whistle which was in sync with the revs etc. It's not in sync and sounds more like an extended squeak than what I call a whistle. Sounds like air from a rubber balloon under high pressure, which I can understand folks thinking it's a leak.
Could it be the DV?
bingo... yeah a squeak or as i thought ... a 'harmonica' style noise.
Hmm not sure... R-Tech did put a 'used' C type DV on the car because my D type was faulty... Im getting a G (or whatever this new one turns out to be if its better) and fitting it soon.
Because the sound started when I fitted the intake I just presumed it was the intake.
-
Should bloody hope it's not the DV, i replaced mine with a G a few weeks ago, the day before i had my Twintake installed, so surely not that!? I have that whistle, but i actually quite like it, it's like it's warning me that when i put my foot down all hell breaks loose!! :evilgrin:
-
^^^^
Not wanting to alarm anyone with my DV suggestion - It's only a total guess as a possibility. If you had a DV leak I would expect a power 'leak' and especially a loss under hard throttle.
The sound might even be on my car too. As bacillus points out, there is a myriad of noises and my squeeeeek might be lost amongst the glorious Grrrrrrrr! from my engine mounts, usual Twintake sounds, Milltek exhaust, and occasional whine (which I enjoy) from the gears/Quaife.
-
Mine makes exactly the same sound, under full load - with both a D valve and a G valve.
I'm glad I found someone else that has posted on it, as I thought that i was the only one.....
-
Mine makes exactly the same sound, under full load - with both a D valve and a G valve.
I'm glad I found someone else that has posted on it, as I thought that i was the only one.....
Hmm.. so thats at least 3-4 people that have the same noise.. so I presume that just part and parcel of the intake.
Thats a pain then... I will have to decide if I can put up with it.... and also what performance it 'unlocks' when im back at R-Tech.
I might just end going back to stock in the end though and selling the bits.
-
Mine makes exactly the same sound, under full load - with both a D valve and a G valve.
I'm glad I found someone else that has posted on it, as I thought that i was the only one.....
Hmm.. so thats at least 3-4 people that have the same noise.. so I presume that just part and parcel of the intake.
Thats a pain then... I will have to decide if I can put up with it.... and also what performance it 'unlocks' when im back at R-Tech.
For me,It only make the noise under full load. so if you drive sensibly, you'll rarely hear it.
Personally, I feel that it adds character.
As for performance, mine made an extra 17bhp on JKM's dyno :happy2:
-
.
I think that the bottom line is that most performance mods which are worthwhile are likely to 'compromise' how your car left the factory. It's ultimately up to the individual what they will accept. Jedi, methinks that you would not like my car one little bit.
-
.
I think that the bottom line is that most performance mods which are worthwhile are likely to 'compromise' how your car left the factory. It's ultimately up to the individual what they will accept. Jedi, methinks that you would not like my car one little bit.
Dont get me wrong.. I like modifying and understand the pitfalls... but a whistle like that sounds wrong to me. whooshing and sucking yes ok... but that whistle / screech is an annoying noise that would make me want to avoid full throttle just so I dont hear it... and that makes the modification pointless if its means you dont want to push the car any more.
I might try pulling it apart. lubing up the hoses and pipes nicely and refitting making sure 100% its together properly but I wont hold my breath as i did a pretty thorough job the first time.
My friend has a twintake I might see if we can do an afternoon where we switch and see if that has the same noise on my car... otherwise I have been in contact with Volant and they are keen for me to set up a group buy so I might try one of those.
Just a bit of a let down when you had been looking forward to a mod and it doesnt perform as you expected.
-
That whistle is an 'F'............ just thought you might like to know! :signLOL: :signLOL: :signLOL:
-
Pretty sure my Twintake makes a similar sound on full throttle accel.
I quite like it! lol
have a listen when your down next!
-
Pretty sure my Twintake makes a similar sound on full throttle accel.
I quite like it! lol
have a listen when your down next!
Damn.. not the answer i was hoping for.
-
Much louder than i expected it to be mate :scared:
-
I notice this a lot with induction kits on the k03, I think I will investigate it next time I get one on the dyno. I have never noticed any power losses linked with it.
It could be to do with the n75 nipples on the turbo, for the air passing over it making a sound like blowing across the top of a milk bottle. But saying that I have never noticed it on a k04?
Nick
-
I notice this a lot with induction kits on the k03, I think I will investigate it next time I get one on the dyno. I have never noticed any power losses linked with it.
It could be to do with the n75 nipples on the turbo, for the air passing over it making a sound like blowing across the top of a milk bottle. But saying that I have never noticed it on a k04?
Nick
I'll keep mine on till the 24th :happy2: and you can hear it on mine
could it be air passing by the maf? the oem intake has a mesh just before the maf i noticed?
-
^^^^
Did someone mention nipples? :evilgrin:
I still don't get an answer on Forge's published phone number! :fighting: I was going to ask them about it.
-
I notice this a lot with induction kits on the k03, I think I will investigate it next time I get one on the dyno. I have never noticed any power losses linked with it.
It could be to do with the n75 nipples on the turbo, for the air passing over it making a sound like blowing across the top of a milk bottle. But saying that I have never noticed it on a k04?
Nick
I have this also sometimes on my k03 GTI, but for some reason its very rare now. In fact I cannot remember hearing it for days. I have heat wrapped my intake so maybe that helped a bit.
And I had the same ITG intake on my Leon Cupra (k04) and as Nick here said, I never heard this sound in that car.
-
i spoke to ITG about this and they said they experienced it on a small number of cars but couldn't explain why
-
Interesting development.
First a tiny background on my specific intake. I bought it from a guy who had it fitted for a few weeks but removed as it whistled. ITG sent him the enclosed canister to see if that fixed it. It didnt. So he sold the whole kit... to me.
I sent Andy at ITG the sound file.. its the same sound as the previous owner was getting. Andy sent me a video clip the other guy sent him and its exactly the same noise (although possibly a bit worse on his car.
I'll try to post the video.
-
video from the A3 owner I bought it from
-
yep thats exactly what mine did on my mk6.
-
.
As usual with such problems which aren't immediately obvious, it has to be a process of elimination.
Has anyone tested for the 'whistle' by changing DV yet? - Surely worth a go.
-
.
As usual with such problems which aren't immediately obvious, it has to be a process of elimination.
Has anyone tested for the 'whistle' by changing DV yet? - Surely worth a go.
the guy I bought it from changed his and it didnt affect the noise.
Just spoken to Andy@itg again and either i'm going to his or he is coming to meet me at R-Tech on the 24th (I need to clear this with Nick first) to listen to the noise on the dyno.
He says they have had a handfull of noises like this out of the hundreds of kO3 kits they have sold and never any on the KO4 kits.
-
.
As usual with such problems which aren't immediately obvious, it has to be a process of elimination.
Has anyone tested for the 'whistle' by changing DV yet? - Surely worth a go.
Pretty sure that i've already stated that the noise occurs on mine with both Rev D & Rev G DVs. Can't comment on the Forge DV though :happy2:
-
Just spoken to Andy@itg again and either i'm going to his or he is coming to meet me at R-Tech on the 24th (I need to clear this with Nick first) to listen to the noise on the dyno.
He says they have had a handfull of noises like this out of the hundreds of kO3 kits they have sold and never any on the KO4 kits.
Glad to hear that ITG are prepared to look into the matter and not shy away. I'm really tempted to come join you at R-Tech as further evidence of the noise.
-
Just spoken to Andy@itg again and either i'm going to his or he is coming to meet me at R-Tech on the 24th (I need to clear this with Nick first) to listen to the noise on the dyno.
He says they have had a handfull of noises like this out of the hundreds of kO3 kits they have sold and never any on the KO4 kits.
Glad to hear that ITG are prepared to look into the matter and not shy away. I'm really tempted to come join you at R-Tech as further evidence of the noise.
perhaps its worth emailing andy at ITG so he is aware of the problem. At present he said he is only aware of a handful of whistles but I think its a bigger problem than he knows about.
-
Just spoken to Andy@itg again and either i'm going to his or he is coming to meet me at R-Tech on the 24th (I need to clear this with Nick first) to listen to the noise on the dyno.
He says they have had a handfull of noises like this out of the hundreds of kO3 kits they have sold and never any on the KO4 kits.
Glad to hear that ITG are prepared to look into the matter and not shy away. I'm really tempted to come join you at R-Tech as further evidence of the noise.
perhaps its worth emailing andy at ITG so he is aware of the problem. At present he said he is only aware of a handful of whistles but I think its a bigger problem than he knows about.
Mine does it too. Kind of glossed over it really and never thought to much of it. Noise increases with more aggressive maps on the SPS select switch all from around 3500 rpm. Had Revo tweek my map today and no problems with engine meeting boost levels as you might expect from a damaged DV.
-
Just spoken to Andy@itg again and either i'm going to his or he is coming to meet me at R-Tech on the 24th (I need to clear this with Nick first) to listen to the noise on the dyno.
He says they have had a handfull of noises like this out of the hundreds of kO3 kits they have sold and never any on the KO4 kits.
Glad to hear that ITG are prepared to look into the matter and not shy away. I'm really tempted to come join you at R-Tech as further evidence of the noise.
perhaps its worth emailing andy at ITG so he is aware of the problem. At present he said he is only aware of a handful of whistles but I think its a bigger problem than he knows about.
Mine does it too. Kind of glossed over it really and never thought to much of it. Noise increases with more aggressive maps on the SPS select switch all from around 3500 rpm. Had Revo tweek my map today and no problems with engine meeting boost levels as you might expect from a damaged DV.
another one... not such a rare issue then.
-
I had my head in a TFSI k03 today trying to see what it could be, It could be related to the breather pipe from the cam cover to the turbo, or linked to the bleed off side of the n75 both of which are on the inlet side of the turbo. Only way to find out is plnk them off and do some test runs.
-
I had my head in a TFSI k03 today trying to see what it could be, It could be related to the breather pipe from the cam cover to the turbo, or linked to the bleed off side of the n75 both of which are on the inlet side of the turbo. Only way to find out is plnk them off and do some test runs.
cool well im still going to try the twintake on my car as well to see if that makes the noise.
Unrelated... sort of.. but my mpg is still terrible since fitting this (and no not because i've been driving like a mad man everywhere :P) Just went for a very gentle drive and was under 23mpg again
-
Got an open cone itg and don't get this noise at all. Have never heard it once for that matter since fitting it. :smiley:
-
Got an open cone itg and don't get this noise at all. Have never heard it once for that matter since fitting it. :smiley:
are you KO3 or KO4?
-
Ko3 stage 1
-
I also have an ITG Maxogen Stage 1 K03 and it makes the exact same noise!
-
I must be just 1 of the lucky few then. :laugh:
-
So thats the following that have the whistle:
jedi-knight - MK5 stage 1 KO3 - ITG
mkviken - MK6 stage 1 - ITG
gigolo456 - MK5 KO3 - Twintake?
GarethB - MK5 KO3 - ITG
JMP - MK5 KO3 - ITG
bigmig95 - MK5 stage 1 KO3 - ITG new cannister arrangement.
jamiek1065 - stage 1 KO3 - ITG
-
mine is a mk6 gti stage 1
on standard map the whistle was barely noticeable. on stage 1 its very loud like the videos
-
mine is a mk6 gti stage 1
on standard map the whistle was barely noticeable. on stage 1 its very loud like the videos
this is interesting / slightly annoying.
I take it your mk6 intake is the enclosed canister that attaches to the oem pipework that then runs along the back of the engine to the turbo.
So this disproves my theory that its the metal piping vibrating as yours doesnt have the same set up?
-
My K&N Typhoon intake did this as well. I think it is to do wth the design of the turbo and the position of the DV and how the diverted air is fed back into the intake. The K04 DV feeds the air back into the intake from a different position than on the K03 and I think the noise is the air being pulled over where the diverted air is reintroduced into the intake side again and whistling. Well thats my theory anyway :rolleye:
-
My K&N Typhoon intake did this as well. I think it is to do wth the design of the turbo and the position of the DV and how the diverted air is fed back into the intake. The K04 DV feeds the air back into the intake from a different position than on the K03 and I think the noise is the air being pulled over where the diverted air is reintroduced into the intake side again and whistling. Well thats my theory anyway :rolleye:
makes sense.
The KO3 doesnt put the air into the actual intake at all does it? So not really something that can be changed at all?
-
I've got the WVR version (still made by ITG as far as I'm aware) K04, with a remap and absolutely no whistle at all.
Pretty much the same intakes, both enclosed as yours is Jedi.
Just whoosh, whoosh n more whoosh (and some flutter) when you floor it. When driving round town you cant even hear the intake.
Maybe ask ITG what the difference is?
Andy.
-
I've got the WVR version (still made by ITG as far as I'm aware) K04, with a remap and absolutely no whistle at all.
Pretty much the same intakes, both enclosed as yours is Jedi.
Just whoosh, whoosh n more whoosh (and some flutter) when you floor it. When driving round town you cant even hear the intake.
Maybe ask ITG what the difference is?
Andy.
I think the KO4 cars are immune because of the different DV location.
Its just odd how some KO3 cars do it and some dont. gives me hope that there is a way of stopping it at least.
-
Good luck, I'm sure you'd prefer your car not performing a concerto in f major every time you go quickly :signLOL:
-
So thats the following that have the whistle:
jedi-knight - stage 1 KO3 - ITG
mkviken - MK6 stage 1 - ITG
gigolo456 - unknown car - Twintake?
GarethB - KO3 - ITG
JMP - KO3 - ITG
bigmig95 - MK5 stage 1 KO3 - ITG new cannister arrangement.
jamiek1065 - stage 1 KO3 - ITG
Edited list :happy2:
-
Mine is GTi, and yes, got a Twintake! Actual whistle to one side, is it actually affecting performance do we know??
-
Mine is GTi, and yes, got a Twintake! Actual whistle to one side, is it actually affecting performance do we know??
....So far we are pretty confident that performance is not being affected.
-
Mine is GTi, and yes, got a Twintake! Actual whistle to one side, is it actually affecting performance do we know??
Is yours a KO3 turbo?
And from listening to the 2 videos its exactly the same noise?
I think its clear its not just the ITG then... but still very odd how it affects some cars and not others...
Its also clear its not such a rare case as ITG thought though.. its just rare that people complain direct to them I guess.
-
Yes, mine is a KO3, i guess i would never have thought it a problem, so would never have raised it if you guys hadn't. I recently had a Rev G DV fitted, so thought it might have something to do with that tbh! It only happens in low gears at low revs, so only accts for about perhaps 10% of my actual driving. From what i can make out, it's not affecting my performance!? I will have to listen to that video, see if yours is worse...
-
Its also clear its not such a rare case as ITG thought though.. its just rare that people complain direct to them I guess.
....People are often shy about complaining face-to-face directly to manufacturers but, as many have said to me (who isn't shy), without feedback how can we know and then do anything about it? They prefer to complain about a problem to their friends. English reserve? :rolleye:
'Complaining', as long as it isn't done rudely or angrily, provides valuable feedback.
-
Its also clear its not such a rare case as ITG thought though.. its just rare that people complain direct to them I guess.
....People are often shy about complaining face-to-face directly to manufacturers but, as many have said to me (who isn't shy), without feedback how can we know and then do anything about it? They prefer to complain about a problem to their friends. English reserve? :rolleye:
'Complaining', as long as it isn't done rudely or angrily, provides valuable feedback.
exactly.
And like i've said.. it doesnt seem as if its something specifically wrong with the ITG intake... but this sound is very annoying and has been the cause of several people getting rid of the intake it seems... and if there is some little change ITG (or Forge / K&N etc) can make to silence the noise then I'm sure they will sell more intakes because there will be less on the 2nd hand market because people wont be forced to remove them :innocent:
-
Out of interest... all of these whistling cars... have you knocked out your pre cat or is it still in place?
-
I have full TBE with Sports Cat...
-
just put my stock airbox / engine cover back on and logged it. no whistle at all and at peak the g/s is only 10-15 less than the itg so surely it cant be a small amount of extra air causing the whistle? must be something else with the way the air arrives at the turbo now or its a resonating sound in the metal piping?
-
VW will have spent a lot of time and effort on NVH on the stock intake to silence such noises. Far more than ITG and Forge would as theirs are performance products with lets face it not much in the way of silencing qualities. Would you not agree that they would just be chasing peak flows ?
Personally it doesn't bother me unless the noise is a product of something other than the filter pipe resonance ie. boost control hardware resonating or malfunctioning. The commonality of it 'may' suggest its purely natural turbo noises amplified by a big load of pipe with sponge on the end ??
I guess some test at R-tech may get to the bottom of it.
-
VW will have spent a lot of time and effort on NVH on the stock intake to silence such noises. Far more than ITG and Forge would as theirs are performance products with lets face it not much in the way of silencing qualities. Would you not agree that they would just be chasing peak flows ?
Personally it doesn't bother me unless the noise is a product of something other than the filter pipe resonance ie. boost control hardware resonating or malfunctioning. The commonality of it 'may' suggest its purely natural turbo noises amplified by a big load of pipe with sponge on the end ??
....I couldn't agree more and nearly posted the same earlier.
Much as I respect that we each have our own individual feelings about what sounds we find acceptable, I think we have to accept compromises for the sake of extra performance. Personally, the 'whistle' I have eventually heard on the posted sound examples is not worth being bothered about, but that's just me. :happy2:
-
VW will have spent a lot of time and effort on NVH on the stock intake to silence such noises. Far more than ITG and Forge would as theirs are performance products with lets face it not much in the way of silencing qualities. Would you not agree that they would just be chasing peak flows ?
Personally it doesn't bother me unless the noise is a product of something other than the filter pipe resonance ie. boost control hardware resonating or malfunctioning. The commonality of it 'may' suggest its purely natural turbo noises amplified by a big load of pipe with sponge on the end ??
....I couldn't agree more and nearly posted the same earlier.
Much as I respect that we each have our own individual feelings about what sounds we find acceptable, I think we have to accept compromises for the sake of extra performance. Personally, the 'whistle' I have eventually heard on the posted sound examples is not worth being bothered about, but that's just me. :happy2:
I disagree that this type of noise is an acceptable side effect of an intake. sucking / whooshing yes ok. but this is a whine / screech / whistle and its pretty annoying.
But the fact that some KO3 cars dont experience it tells me there is something that can be done to fix it.
Also.. on the subject of 'the gains are worth extra noise' .. I've been doing more logging vs the stock airbox and posted my results here... http://www.mk5golfgti.co.uk/forum/index.php/topic,50310.msg580317.html#msg580317
The 'gains' didnt seem as much as I was expecting?? Or are they normal for vagcom logs?
-
found this on youtube
the twintake does the same noise.
&feature=related
Looks like its going to be a sound i have to live with or go back to the stock intake
-
Well i really like the sounds my itg makes over the stock intake. As was said earlier in this topic i think you have to make sacrifises if you want that extra power.
I have a revo stage1 map and the itg compliments the revo software quite nicely and i have definatly added more bhp.
I guess what im trying to say is (sorry to be blunt) if you dont like it take it off and move on.
-
Well i really like the sounds my itg makes over the stock intake. As was said earlier in this topic i think you have to make sacrifises if you want that extra power.
I have a revo stage1 map and the itg compliments the revo software quite nicely and i have definatly added more bhp.
I guess what im trying to say is (sorry to be blunt) if you dont like it take it off and move on.
yes but do you have that harmonic whistle / screech?
The general noise I liked.. but not the whistle
-
I watched your video twenty times and could not here it but then I watched the US Twintake one and heard it straight away.
Ill tell you what it sounds like, it sounds like the waste gate actuator is a bit dry on the linkage so when its opening to relieve the pressure its squealing against the pin and linkage.
As soon as it starts boosting that actuator starts moving in readiness to dump the boost out of the exhaust.
Here is the LO380 from Loba:
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fi592.photobucket.com%2Falbums%2Ftt8%2Fh4rdy%2Flo380.jpg&hash=29f658886075a85516f38d2b3fc56cbe305ad572)
Can you see what I mean? I marked the points where the actuator moves in case you don't know.
Now the big engine cover and pre cat are gone the noise is going to be louder.
I could be wrong but nothing to lose take it all off, again, and where that support/heatshield sits have a mooch for the wastegate actuator shaft and give it lube with some WD40/GT85 refit and see what happens.
It will probably come back but at least you will know.
Its very dry inside that exhaust and around there so you never know but to me it sounds mechanical.
-
Why has that not come out on the picture my markings?
Anyway its the shiny long shaft in middle of the picture.
Linkage on the left..
Pressure relief on the right.
Lube it up. :scared:
-
Strange it has now.
Not saying I am right but just a thought.
-
I can't see any Markings Justin?
Jedi... I really couldn't live with that noise mate. I heard it straight away on your video. Wtf??? :sick:
No such noises on mine, but as said earlier, seems to be a prob with the K03's only.
Maybe h4rdy is correct in his diagnosis?
-
If it was the actator then it would do it on K04s as well. It is down to the design of the K03. I have always thought it was a bad design having the dv bolt ono the turbo as I am sure it is that housing which makes the noise. It would be good to know if cars that have relocated the dv to the front have the whistle.
-
Can you do a dv relocation on KO3? Or does that involve going KO4?
Sent from my iPhone using Tapatalk
-
You can but not sure what's involved.
That noise sounds like a dry linkage to me and as its not in line with revs that's why I thought.........!
Yes the 3 & 4 are fundamentally the same, you never know.
For the bit of time it will take you may be worth a try.
-
And they don't all do it so maybe a bad batch?
Who knows but worth a try.
-
And they don't all do it so maybe a bad batch?
Who knows but worth a try.
Thing is I've heard videos of the noise with other intakes. Forge / K&N etc so its not even just the ITG.
Im fairly certain im not going to keep the intake at all now even if the whistle goes as I dont like the power delivery. I prefer the lower down grunt of the stock box.
I'll still take all the bits to Rtech on Tuesday and ITG are coming along to listen / play with it so I'll report back.
Having sampled the world of intakes though .... even if Rtech wave their magic wand and get my car running right with it fitted and ITG fix the whistle... I still think I'll sell it and re invest the money in something I will appreciate the difference with more... IE.. NQSBBK.
-
Unfortunately we didn't get time today to muck about fitting intakes and Andy from ITG had to cancel anyway.
Im happy with how it runs on the stock airbox now and i cant stand the whistle and doubt it will be any easy thing to find / fix so I've decided to sell the ITG and not bother with an induction kit at all.
Sorry to those who were waiting for answers but this will have to wait for someone else to look into it.
As a side note though... now i've been listening for it.. I can actually hear the same pitch noise with the stock airbox. Its VERY faint and happens for a shorter period in the revs and doesnt always happen but i've heard it a couple of times now. So I guess its a noise the KO3 makes but the extra air / metal piping from indution kits just amplifies this noise on some cars (still strage its some and not others)
Anyway. Thanks to those who gave input and feedback. I'd be interested to hear if anyone ever gets to the bottom of this.
-
Glad your happy but sad you didn't get to the bottom of it.
That video of the US forge is a mk6 yes? Does that not have a different turbo too?
I think its either the dv location or what I said.
-
Glad your happy but sad you didn't get to the bottom of it.
That video of the US forge is a mk6 yes? Does that not have a different turbo too?
I think its either the dv location or what I said.
Yes disappointing but its another day on the road and Nick has already been an absolute hero with sorting my problems out already so didnt want to push my luck messing about with an intake I knew deep down I wasn't going to keep anyway (didnt like the power delivery later in the rev range).
probably DV location as you say as thats the 1 thing thats different with the KO3 / KO4 (other than turbo size)
-
I have a fresh K03 turbo waiting to go on mine, which may prove/disprove the wastegate theory soon.....
-
I've decided to sell the ITG and not bother with an induction kit at all.
If you fancy selling the enclosed filter section separately, please let me know :happy2:
-
I've decided to sell the ITG and not bother with an induction kit at all.
If you fancy selling the enclosed filter section separately, please let me know :happy2:
see the sales section
-
Sorry to raise an old thread. But I didn't have this on my k03 using a ramair k04 kit. But I now have the VW racing kit and I get this whistle on full throttle around 4-5k. Why would I get it on 1 get but not other. Bigger pipe work and no forced air??
-
Sorry to raise an old thread. But I didn't have this on my k03 using a ramair k04 kit. But I now have the VW racing kit and I get this whistle on full throttle around 4-5k. Why would I get it on 1 get but not other. Bigger pipe work and no forced air??
Hi mate, been reading plenty of your posts recently, sounds like you're having a nightmare with intakes!
I'm pretty sure this resonance (sounds like a flute/recorder/harmonica?) is inherant in the standard k03 setup. I heard it on mine when it was completely standard for a couple of days over the summer. Strangely I haven't heard it since.
But the point is that this resonance is amplified by fitting an aftermarket intake on a k03 car - rather than the sound coming from the intake itself.
I've decided against an intake for mine, there just seems to be too many potential downsides against the gains. I'll be going Stage 2+ and possibly even k03 hybrid, and at no point have I read or heard that an aftermarket intake would be an essential part of a 2+/3 setup. Do you NEED it??
Just as a final thought - k04 cars seem to avoid this resonance issue. Whether that's down to the turbo itself or the different dv and pipework route, who knows, but you can do a dv relocation on a k03 car to match the setup on a k04 car. If you're absolutely determined to fit an intake and avoid this resonance thing, dv relocation might be an idea. It might work, it might not. Otherwise just go back to standard.
-
Yep. Will give this a go for a bit then I may sell this on. That's now nearly £500 on intakes. The ramair was just to noisy for me And the vwr has this intake whistle.
May go back to std with a panel filter.
-
Oem for me from now on :jumpmove: