c 45":3pei5v0i said:
hmmm do i reakky want to do it i guess thats a better question i hear that with the right tune and what not i can see a big difference in horse power
One reason because it can resist detonation at higher temps, allowing to push more boost when compared to pump (but not quite as good as race fuel - 105 octane vs 114...or so in terms of octane rating). Again, due to lower efficiency in power output, it requires a bit more fuel, and bigger injectors, with a different set of knowledge for tuning (not your typical AFR goals).
Also, there's factors like oxygenation, density, heat, etc. between the two for differences. There's a bunch of articles out there to read on this. If you plan to daily, I'd suggest e85 if you have it available w/o being such a hassle. Just remember if you travel for shows/runs/competitions, you know where the e85 stops are...
That being said, if you plan to just run e85 and be done with it, get it setup right. Otherwise, many still do the "ol" pump and race fuel when feeling excited.
I'm still debating which fuel setup to run. I have 1000 ID injectors right now on hand, for race fuel setup. But I'm thinking maybe e85, which will require bigger injectors, ensuring i have proper seals/line setup, etc - more money up front and having to sell what I have now.
Bryan