Re: 50/50 E-85 and 92 octane
E85 gives bad gas mileage but is great for boost. I have tuned a few turbo cars running anywhere from a few gallons of E85 per tank all the way up to 100% E85. I retuned an Evo 9 the other day that didn't make the best power the first time he came in with non-oxy fuel due to it wanting to knock too easy. He put a fuel pump in it, put in normal 10% ethanol gas plus 2 or 3 gallons of E85 and we were able to up the boost a little, add timing and run it a tiny bit leaner. It made 300awhp on our Dyno Dynamics with just an exhaust, MBC and retuned ECU on the car. The 16Gs on those Evos are crazy compared to what we use on the DSMs and MIVEC is cool.
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