A8 / S8 (D2 Platform) Discussion Discussion forum for the D2 Audi A8 and S8 produced from 1994-2002

Water Methanol Injection System Installation Guide

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Old Feb 24, 2012 | 05:34 AM
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Default Water Methanol Injection System Installation Guide

For those of you who may be interested in installing a Water Methanol Injection System, I have prepared an article that appears in http://www.audipages.com/upgrades/WM...emArticle.html.

My thanks to Paul for hosting this article.
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Old Feb 24, 2012 | 06:25 AM
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I already read your write up on AudiPages...PaulW brought to our attention over on QW...Very cool and well written, sir.

On another subject from a past thread: Have you tried recoding your trans to 00032 = sport PLUS control of 1st gear in tip mode ?

Not only holding 1st to redline (or user shift) in tip mode, but gaining the ability to downshift to 1st anywhere within it's speed range is an addictive function.
Being able to use this at will (not just the inconvenient occasional downshift to 1st with the kick-down switch at extreme slow speed...hard to control and unpredictable) awakens a monster, esp during lower speed cornering.
Once you've tried it, you'll never go back
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Old Feb 24, 2012 | 01:03 PM
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Default Thanks for putting it together

There are lots of questions for you over on quattro world A8 forum, don't know if you visit there.
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Old Feb 24, 2012 | 02:21 PM
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Silverd2

That for the compliment. It means a lot coming from you.
I have the coding on my to do list. I'll keep you posted
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Old Feb 24, 2012 | 02:22 PM
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Paul,

I will move to the other site.

Thanks
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Old Feb 25, 2012 | 11:58 AM
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A great guide, but I have to wonder to what purpose on a Naturally Aspirated motor. Where is the 20bhp coming in.. that seems overly optimistic.

I have Water Meth Injection on my 440bhp BiTurbo S4, my install used the windscreen washer tank so was very easily installed. As this was a boosted car I set it to come on above 6psi boost.. as there was no point below. Which where an A8/S8 is the whole time, no forced induction!
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Old Feb 26, 2012 | 07:59 AM
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Originally Posted by mattsimis
A great guide, but I have to wonder to what purpose on a Naturally Aspirated motor. Where is the 20bhp coming in.. that seems overly optimistic.

I have Water Meth Injection on my 440bhp BiTurbo S4, my install used the windscreen washer tank so was very easily installed. As this was a boosted car I set it to come on above 6psi boost.. as there was no point below. Which where an A8/S8 is the whole time, no forced induction!
Naturally aspirated motor at about 310hp expected without tuning and using water methanol should yield about ten percent increase. So being conservation rather than saying 30hp I believe that a 20hp increase is achieved. I chose not to use the windscreen washer tank for other than its intended use and to be more discrete with the installation. I am using a 50/50 solution. I control when the extra boost is needed with the use of separate switches.
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Old Jul 29, 2018 | 11:17 AM
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Does anyone have this Tech Writeup archived as a PDF? None of the photo's are loading on Audi Pages.
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The "accounts" system over there seems to not be working. I haven't been able to recover my account or update. The SysAdmin functions don't seem to work lately.
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Old Aug 1, 2018 | 08:49 AM
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I used the wayback machine and saved the writeup as a PDF.
Pics are included.
Enjoy.

https://drive.google.com/file/d/1F7n...ew?usp=sharing

Last edited by audinutt; Aug 1, 2018 at 07:40 PM.
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