E-85 = holy Falk

[Draco-REX]

Lots of people are running E85 daily in WRX/STI motors and Evo motors using regular unleaded fuel pumps (Walbro 255) and Injectors (Deatschwerks, etc). I wouldn't worry. Today's fuel systems have to handle low amounts of Ethanol anyways, so they are already resistant to the corrosive effects. I'd just use a good Ethanol additive like Lucas' Ethanol Treatment just to be on the safe side.

Considering how strong this engine is turning out to be, I'm getting closer and closer to voiding my power train warrany....

[LeeMaster]

Good to know how much E85 can do to make the fun more enjoyable. Are you still 100% stock or did you added some boltons?

EDIT: Besides the flash

[itisthumper]

Would E85 help without a flash?

[dorifuto]

Originally Posted by LeeMaster

Good to know how much E85 can do to make the fun more enjoyable. Are you still 100% stock or did you added some boltons?

I have injectors, pump, turbo back and tune. You will need a tune for e85.

[Mars2]

Originally Posted by itisthumper

Would E85 help without a flash?

Yes but I don't how much long term and short term trim can adapte.
If it's up to 25% like on VW world then you will be safe with 60% E85 in your tank. Specialy if that car have wide band O2 sensor that work on close loop eve n at WOT like on VW R32 for example

[Draco-REX]

Originally Posted by itisthumper

Would E85 help without a flash?

You will damage your engine if you run E85 without a flash. The engine needs about 30% more E85 than petrol. If you just fill up with E85 your engine will run super lean which can actually melt parts of the pistons.

Just don't do it.

[Mars2]

Originally Posted by Draco-REX

You will damage your engine if you run E85 without a flash. The engine needs about 30% more E85 than petrol. If you just fill up with E85 your engine will run super lean which can actually melt parts of the pistons.

Just don't do it.

not totaly true. 100% E85 for sure but blend that is in the margin of long term fuel trim adaptation are OK. And you get already the full advantage of E85 octane at 75% of E85. I have to find back that Chevrolet study on E85 for futur proving that.

Already with 50% of E85 you can fill the advantage I drive 3 year like that on my R32 before the flexfuel remap and my wife car did already 100000 Km like that.
Because E85 is also half price of gazolinz where i leave. so cheap price plus more hp getus very motivated on E85

[Mars2]

My VW R32 run with this now since 2 year.
http://bwperformance.com/products/so...nversion-kit-0

Flex fuel because of wide range O2 sensor running close loop even at WOT

[Draco-REX]

Originally Posted by Mars2

not totaly true. 100% E85 for sure but blend that is in the margin of long term fuel trim adaptation are OK. And you get already the full advantage of E85 octane at 75% of E85. I have to find back that Chevrolet study on E85 for futur proving that.

Already with 50% of E85 you can fill the advantage I drive 3 year like that on my R32 before the flexfuel remap and my wife car did already 100000 Km like that.
Because E85 is also half price of gazolinz where i leave. so cheap price plus more hp getus very motivated on E85

Yes, blending can help. But not only is it a PITA, it can also be tricky to keep the mixture the same from tank to tank. Not only that, but by not having a tune, he isn't getting the most from it. So why not get a tune, then keep fill-ups simple and get the most from his money?

[Mars2]

Sure if you got the money get a tune and will be the best.

[PRORICAN]

The best mod I ever did to my old Evo X was an e-85 tune and my BRZ is next!

[jdzumwalt]

I've been using E85 on my off road race truck since 2009. The fuel will destroy RC engineering injectors. But new ev14 Bosch injectors are compatible.

The biggest issue I have seen are related to some Oxidizing. But this quietly goes away if run through a small amount of gasoline. Gelling can acure too but this also goes away with running gasoline through.

http://www.bosch-motorsport.de/conte.../html/2659.htm

The Key here is The new components are made to handle the E-85. For some reason the RC Nippon Denso will completely clog and shut Down I have gone round and round and those injector's. They are hell on Earth Stay away if you run on alcohol.

As far as Storage is concerned I have had no problem storing it for up to 10 months.

http://www.ebay.com/itm/Quick-Fuel-E...4a4edf&vxp=mtr

I have used this tester and had it compared to real lab results, it was within .05 % accuracy and that close enough for me.

The E85 I put in my car was stored since April so thats 8 months it tested out at E90. Keeping it Sealed is the most important issue. If it's not sealed it will off gas and loose the Alcohol making it come out at e50 or worse. Testing your stored fuel is key. Also if you live in an area with a lot of humidity you can have some water issue but as long as you store it sealed it will be fine. If you dont drive your car a lot then use 91 oct.

[hayleybeaners]

Originally Posted by Got3n

So how do you switch between tunes? Im new to ecu tunes and dont know what you are referring to. I have 2 or 3 stations here that sell e85 that are either easily accessible, but if do run low and need to put in 93 will that mix with e85 and be ok?

Are you carrying a laptop with you just in case?

[Got3n]

Originally Posted by hayleybeaners

Are you carrying a laptop with you just in case?

Laptop? to switch Tunes? I could if i wanted to, i have like 3 tablets and 2 laptops, and I dont think assigning one to my car is a problem.