I don't have an EVO but I want to get tune for E85. According to some NASIOC menber it takes about amount of tunning to get a good working map , what do you guys think. For those of you who are tune for E85, did you tune your car yourself or who was the tuner a how long did it take?

I have an 07 wrx with a VF39 turbo.

thanks

 

The Evo is generally a bit easier of a car to tune. But any reputable Subi flash tuner should be able to tune it

 

from what ive read and heard,people who are tuning for E85 need an extensive fuel system

 

Not really. Just big injectors (most seem to go with 1000cc) and maybe a twin pump setup.

 

a 255 and bigger injectors is all you need

 

^^oh cause the Honda guys around here are all ***** out on their fuel systems,running E85

 

It all depends on what kind of power you're looking to make. If you want to stay in the conservative numbers 300-350 AWHP you might only need new injectors and obsiously a tune for E85. The octane is much higher but E85 requires more fuel to produce the same amount of energy as normal gas so you have to add more fuel.

E85 is also pretty corrosive and although a lot of newer cars these days come with factory setups that support E85, I'm not sure the evo's fuel tank, lines & pump are up to the added corrosiveness.

 

I plan on getting 850cc and new fuel pump. But they said that 2 hours for dyno tunning with a pro tuner is not enough to get a good working map. How long do you guys take to get a good map for E85?

 

Well on a EVO i would think only 2-3 hours, possibly 4 if you ran into a problem.

 

Some good info here

http://e85evo.com/intro.html

 

what info ? when I click on the dyno sheets comparison it takes me to another website. I know I need injectors and fuel pump.

thanks

 

Let me clarify a couple of things here:
1. Amount of energy in E85 has nothing to do with how much of it you need.
2. Ethanol is not corrosive, most people drink it on a daily basis methanol is corrosive.

 

Make sure you get the right sized injectors. i looked into E85 but i would have to replace my injectors again just to support a pump gas map.

 

E85 requires about 30% more fuel than 93 oct.

 

Can anybody give some newb tuners like me some advice as to how much richer we need to adjust our maps?