Want to run E-85 in my 96 accord 2.2 vtec, has anyone done it? is it just bigger injectors and a reprogram?

 

E85 vehicles have a special sensor, that the fuel flows through, and that tells the ECM how ethanol is in the fuel, and long to leave the injectors open. The problem, I can see, with what youre trying to do, is that you would have to know exactly what percentage of ethanol you are burning, and you would have to stick with it all the time. You couldnt go back to regular gas(Which is e10-15 most of the time anyway. Or pure gas(Marine gas). Plus, if the gas station you bought e85, was say only running e70....as it got mixed or whatever, youre car wouldnt run right.

Plus theres the hardware aspect, that dang ethanol eats fuel lines, the flex fuel vehicles have stainless lines/injectors.

 

k... is there such a sensor u can buy? the no switching isn't a issue cause its a race car, i just don't want to spend over $6 a gallon for race gas. id also be running all new PTFE braided lines anyways just because of the higher octane in race gas.

 

Different manufacturers sell them, ford, GM(Dont know if honda ever did flex) and theyre all different. And I do not know what kind of output these sensor put out...whether its resistance...or 4-20mA or 0-10V. Plus, then youd have to somehow tie that signal into your ecm...to control injector pulse.

 

If it is a race car and always will be running the same fuel, then it seems that your tuner could make adjustments to the ECU to max the performance of whatever fuel you are running. And I am pretty sure you would need injectors that flow a lot more fuel.

 

May I ask why?

My personal opinion is that it's not really worth it on the Accord. People do it that are boosted to make even more power - E85 burns real nice - but you have to be tuned for it, get injectors, a bigger fuel pump, etc. Adding it to a system that is 18 years old doesn't seem like the best way to spend your time, money, or effort.

But there are systems that enable you to do it, here's an example for the S2000 a company makes -

http://scienceofspeed.com/products/e.../E85_FlexFuel/

 

[May I ask why?]

its a race car that i have to put a fuel cell in so i already have to get a new pump and run new lines. figured i was half way there why not try E85 for like $2.50 a gallon compared to around $6+ for non leaded race gas... for about the same octane rating

 

What hp numbers are you making?

You'll need ALOT more E85 than the racing fuel you currently are using/going to use. E85 is a great way to make big numbers and a cheap alternative to the race fuels but you'll need some very large injectors and a high flowing fuel pump to match it. You'll also need a custom tune that can allow for variables in case the fuel isn't actually E85 which is very common.

 

its going to be a pretty much stock f22b1, since i still have to "appear stock" ;D a little head work and probably different pistons for more compression, so... prob not much more then 170-190 since stock #'s about 145hp. don't wanna go to... crazy since its an endurance event

 

I wouldn't bother with E85 then.

If you're building a race car, but the motor has to be stock - I'm guessing which is why you've quoted "appear stock" - then I really don't see E85 being a huge benefit.

Sure, it will burn cooler, but again, your application I don't think it's the right fit.

****, I'm not even going to E85 and I have a boosted S2000 that should be well into the 4xx whp range after this next round of mods. There's plenty of guys in the 400 whp range running 93.

If anything, I'd swap in an H22A and have a much higher starting point without mucking with any of the fuel system.

 

yeah it looks like a lot of work and i cant really find many parts for the F22b1, if i could swap motors i deffy would, they run vins and check block #'s so out of the question. just thought if it was goin to be a little easier i would try it. thanks for the input everyone!

 

Your best bet is a Bisimoto cam, BlackTrax intake manifold (stock one bored out), and then pair it all with a nice exhaust system. The cam alone shows very very good gains.

You could go with DSM injectors (believe that's what people use) and tune it.

 

as long as the intake looks stock enough i could, exhaust will be 3" straight pipe so no worries there. are there any good flash programers for the stock ecu? or is it worth dealing with the stock one? BTW every thing has to look stock to someone who knows a little bit about cars, lol