Sojer

Besides a fuel pump and tune what else is need. Injectors? Why is a tune needed. What about race fuel or turbo blue 110 octane. Thats race fuel.

vetteoz

iTrader: (13)

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You need to burn a sh*t load more ( like 30-40 % ) E85 than reg gas , hence the need for bigger injectors and supply

Because with 87 the tune is set up to achieve a AFR of about 14.7:1 ;with E85 it needs the AFR to be more like 10:1 "

Race fuel is just higher octane so considering the cost is generally a waste on a street engine unless you have a extra high CR that require a higher octane gas.

Sojer

So u cant have one system like new cars it would have yo be one or the other

T/Aperformance

It is best if you are running E85 in our cars not to switch back and forth. But depending on how you tune your computer you can run both.
I am one of the few that is running ethanol in a thirdgen, Although my mix is 98% ethanol to 2% gasoline as I make my own fuel.
Here is what I changed to make my TPI car to run on E85 or better mixed fuels.
I changed my fuel pump to a Walbro E400.
New fuel lines to stainless steel as ethanol will eat regular fuel lines over time.
New fuel injectors 36lbs , get new not used injectors here.
an adjustable fuel pressure regulator , I'm run 50 psi
then I learned how to tune my ecm , With ethanol you can give it a lot more timing, And I adjusted the injectors pulse width.
And I'm using a hotter sparkplugs than stock.
I installed a wide band O2 sensor, The stock narrow band O2 sensor wont register like you will need.
I had to do a lot of data logging both on the street and the track to get my engine to preform at its best.
If you are doing this just for cheaper fuel cost and buying the E85 from a gas station you wont be saving any money. The only way to do this to save money is to make your own.

Sojer

No I wont do the e85 swap (E85 is as common as 110 octane) just wanted to know its just a few more bolt ons and im done with 1st gen sbc I may get a bigger cam. I just wanted to know thanks

William Ortiz