MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: JackG on September 10, 2011, 09:28:10 pm

Title: Water meth
Post by: JackG on September 10, 2011, 09:28:10 pm
Guys, I've had a search of wich has helped me out BUT I want a honest answer of someone that's using it already as I believe it's getting more popular!

Is it worth it??!! The cost of a kit is around £300 for devils own I am planing on going stage 2+ (2008 ed30)
I won't bother if I get a increase of around 8bhp  :signLOL:
Any help would be greaaaatttt!
Jack
Title: Re: Water meth
Post by: sub39h on September 11, 2011, 09:56:26 pm
&feature=related

i remember as well reading somewhere else that gains are comparable to fitting a decent CAI. i've tried searching for it but i can't find it. if i come across it i'll post.

S.
Title: Re: Water meth
Post by: berg on April 03, 2012, 03:15:03 pm
been looking at this, is there anyone usig it who can comment on the OP's queries?

Jack, did you find anything else out about it?

Thanks.
Title: Re: Water meth
Post by: dan930 on April 03, 2012, 06:03:34 pm
I remember At r-tech theres a black mk5 Gti fitted with water-meth & it's running around 370-380bhp...
Think he's a member on here
Title: Re: Water meth
Post by: bacillus on April 03, 2012, 06:09:58 pm
I remember At r-tech theres a black mk5 Gti fitted with water-meth & it's running around 370-380bhp...
Think he's a member on here

http://www.mk5golfgti.co.uk/forum/index.php/topic,43854.0.html
Title: Re: Water meth
Post by: luckyGti on April 03, 2012, 06:52:36 pm
I run a snow performance stage 3 kit with 7 gallon tank in the boot, definitely a noticeable gain in power and well worth it imo.

James will be able to give a better explanation of the benefits/gains as mine isn't set-up to it's full potential at the moment.


Stage 3 Snow video



Aem

&feature=related
Title: Re: Water meth
Post by: james on April 03, 2012, 11:02:11 pm
i have been playing with mine running 50/50 60/40 70/30 and 100% meth

100% meth is epic! lol but i now run 70/30.

i get around 60/70BHP from it due to me running loads of advance timing.  :drinking:

The car needs to be mapped to it  :happy2:
Title: Re: Water meth
Post by: skiddusmarkus on April 04, 2012, 08:04:59 am
The main benefits are that it cools inlet charge and cylinder temps, allowing you to run more boost/timing.

Water is better at cooling the inlet charge and methanol is superior in the cylinders, plus it also boosts octane.This is why people run a mix, although some run a small % of methanol to stop water freezing in cold conditions.

I have it fitted but atm its just spraying water.The reason being is methanol is highly toxic and I don't particularly want to store something so flammable in large quantities.
When my car was mapped, it was done with the WO off(not what I asked for), so when its on, it actually loses around 8bhp as you have to lean off the mixture when spraying and this hasn't been done as yet.
Title: Re: Water meth
Post by: james on April 04, 2012, 09:36:39 am
i have tried to see if it is flammable 50/50 and does not burn

but burns at 70/30.
Title: Re: Water meth
Post by: bacillus on April 04, 2012, 03:54:46 pm
Just remember that aluminium and methanol are not best buddies... 
Title: Re: Water meth
Post by: james on April 04, 2012, 06:54:43 pm
yea i know, doing a test in the garage,   100% with a lump of ally to see how long it takes.
Title: Re: Water meth
Post by: berg on April 04, 2012, 07:35:21 pm
James - are there serious negative points to running water meth?
Title: Re: Water meth
Post by: Tfsi_Mike on April 04, 2012, 07:36:48 pm

Corrosion of your valve guides with high meth mix  :scared:
Title: Re: Water meth
Post by: damoegan on April 04, 2012, 08:06:48 pm

Corrosion of your valve guides with high meth mix  :scared:

Lots of cases of throttle body failur due to meth ingress on the 1.8T...
Title: Re: Water meth
Post by: berg on April 04, 2012, 09:30:47 pm
mmmm, so am thinking if TFSI Mike does not have it there must be a reason as Mike, you seem to have every other mod under the sun!
Title: Re: Water meth
Post by: james on April 04, 2012, 09:35:13 pm

Corrosion of your valve guides with high meth mix  :scared:
50/50 is fine. i think.
Title: Re: Water meth
Post by: Janner_Sy on April 04, 2012, 09:46:22 pm
mmmm, so am thinking if TFSI Mike does not have it there must be a reason as Mike, you seem to have every other mod under the sun!


thats thge one mod he hasnt got.  He did have a labonte kit but never fitted it
Title: Re: Water meth
Post by: Tfsi_Mike on April 04, 2012, 10:31:27 pm
mmmm, so am thinking if TFSI Mike does not have it there must be a reason as Mike, you seem to have every other mod under the sun!


thats thge one mod he hasnt got.  He did have a labonte kit but never fitted it

I was thinking that's a bizzare philosiphy but you're right Sy, I did buy Owen_Lcr's Labonte S4 kit.  :grin:  Its still something Id consider but if I want/need more power I should consider a bigger turbo 1st  :innocent:
Title: Re: Water meth
Post by: Hurdy on April 04, 2012, 10:39:48 pm
I have it and it definitely makes a difference even on a like for like setting on REVO. With the WMI on the car feels livelier and more powerful than with it off. I use a 50/50 mix and it turns on at a set pressure. :smiley:
Title: Re: Water meth
Post by: skiddusmarkus on April 05, 2012, 12:23:35 pm
Mine comes on at 10 psi and takes a signal from the fuel injectors, increasing spray proportional to fuel, so you get more accurate control of the water going in.Without that it would start spraying at 10 psi, but would be injecting the same amount of water at all duty cycles whether its needed or not.