E 85 anyone?

**Jbone29** · 12-13-2008 09:31 PM

Hey i have a friend with an evo that did E85 and gained 90 wheel horse power, i havnt heard of any Audi doing this, i know its possible but was wondering if it could yield the same kind of power gains and or anything at all??

**Condo** · 12-13-2008 09:41 PM

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**onceover** · 12-13-2008 09:41 PM

i think you need to flow more ethanol than you do gas, therefore need larger injectors.

i remember a few threads a while back about this.

**Das General** · 12-13-2008 09:45 PM

You will need larger injectors and probably a better FP. And a tune to go with it all.

PM 2001NYS4. He custom tunes for E85.

**Maverick** · 12-13-2008 11:27 PM

most likely a upgraded fuel pump as well

2001NYS4

**2001S4NY** · 12-13-2008 11:39 PM

Originally Posted by Maverick

most likely a upgraded fuel pump as well

2001NYS4

Hey my name is 2001S4NY

And yes i do E85 any audi/vw

**Howard Hughes** · 12-14-2008 03:38 AM

I believe it... you need a good tune... I know a guy that did it with his Acura Integra big turbo and he gained 35 whp over his 93 octane tune....

**dirtybrd** · 12-14-2008 06:30 AM

It 105 oct. IIRC.

**Plasticar** · 12-14-2008 06:52 AM

yes, you need more fuel flow, surely a new computer map. You also need to know the materials used in every component of the fuel system. Certain materials, both plastic and metal, are very resistant to standard fuel, but not resistant to the high alcohol content of E85. E85 could weaken and degrade some of the components, not necessarily, but possible if you don't know what they are made of. Automakers who make actual E85 rated vehicles have to make specific, sometimes expensive, materials choices in the fuel systems.

E10 is fine for any car, however, but doesn't gain you power, just uses less gasoline.

Doesn't mean you can't do the conversion, but you had better know what you are doing.

**LampyB** · 12-14-2008 09:29 AM

DenverNoob had his e85 conversion done at Autobahn Premier Service in Englewood...they're just off of Broadway before Hampden. They're a very reputable local shop, and I think just so happens to be the only GIAC dealer in Colorado. Give Randy or Todd a call and they'll tell you all you need to know.

ps. you can definitely get a lot of power out of this conversion and i'd love to do it. problem being that i don't want to rely on finding certain gas stations because i drive all over in and out of town. it burns fuel like a mofo too.

**Maverick** · 12-14-2008 11:23 AM

Originally Posted by 2001S4NY

Hey my name is 2001S4NY

And yes i do E85 any audi/vw

word.

**Jbone29** · 12-14-2008 11:25 AM

thanks for the help guys

i am defiantly going to look into this further and see if the upsides outweigh the downsides!

**Maverick** · 12-14-2008 11:42 AM

there is a review in the B5 S4 section. search user name nateS4 that is the op of that thread.
the guy name TommyGun wrote the review that you want to read.
imo, E85 is way to go.