Wake
Active member
But if you don't do anything to take advantage of the detonation resistance how will it help? I remember time and time again people thinking running race gas with a stock setup would improve HP, only for dyno to prove it doesn't.E85 provides better resistance to detonation and has cooling effects that make it provide more power over E10. For this reason you see big gains in forced induction application but even with the stock tune a N/A engine will see 2-3%hp gain with a stock 87 octane tune. However, it will lose more than that in MPG and really it's going to be hard to really "feel" the difference. It's a lot easier to see it on the Dyno or the strip vice on the street.
I have looked for a stock dyno comparison with no luck.