I'm just curious to see how the car will run. Really that's all if there is no point I won't do it so I would like to hear you guys opinions.

Car has Haltech RE. Aeromotive fuel pump. 1000cc IDs Secondaries. Streetport. Stock turbo.

Wondering if I can turn fuel trim up 30% and try it out.

Like I said. I'm simply curious to see how the car runs, if it'll make a few more hp. If it's there isn't any harm that will be done would that be ok?

 

Cant just turn fuel trim up 30%. It will run like **** if you do that. You need to do a full tune. Not sure if you will even make stock power with the small secondaries before you max them out.

You need to do some reading in this section.

 

I mean you can try it. May need to mess with the idle a little. The flex fuel sensor does exactly that just adds fuel to the whole map. So if you car is 100% TUNED right now on gas I would just select the whole map and add 30-33%. I you were running 10psi on gas then with e85 you won't be able too.

So if you are looking to see if you make more power at 10psi the your are out of luck because you need more quantity of fuel to reach 10psi. E85 required 30-33% more fuel to make the same power as Gas.

 

I've read plenty in this subforum. Nobody has tried to run(to my knowledge) e85 on a stock turbo. Mainly cause there is not much of a point. But like I said I just wanted to try to satisfy my curiousty.

 

It's worth a try. If tune up is really good it will be extremely responsive.

 

I have a BNR stage 2 turbo, stock S4 block, E6k and use E85. I do Track days, and was looking for a fuel that would give me the best chance at not blowing a motor. What should be understood is that E85 is great at spooling turbos, to good. I had to deal with true compressor surge. The solution was to keep the wastegate valve open at about 5-6mm to bleed off enough energy as to not over boost the motor at low speed. Or I could have went with a bigger turbine/ turbo, but I'm cheap. Boost response on track is awesome, and street drivability is unaltered.