FWIW I'm going to have mine tuned on 93 as a base and save the tune then drain the tank and tune for E85. Its only $200 more to get both tuned.I've looked at E85, but I'm happier just having the much wider availability of 93 around here. Because if you are tuned for E85 and can't get some that's a problem.
There is a station maybe 5 miles from my work with E85 but.... Hassle.
Nuker-
You might want to review this link: https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/my-m62-e85-car-will-wax-floor-vs-most-tvs-cars-gasoline-190724/I am going with 93 as well. E85 is available in my area but I am also concerned with availability it of my area also fuel mpg for a tank this small was one of my concerns since E85 uses 25-35% more fuel for the same power. I would like the extra power i could get, but I can do the same thing on 93 with a different blower.
My IAT2 with a 2.8" and DF's stock cooling with for the M62 stay really warm compared to those with huge coolers. I have a 2.9" to try sometime, but I really just want to drive my goblin and stop working on it so much.I am going to run a 2.9" pulley on mine, could probably take a 2 .8" but it would drive the IAT up a lot for only a little more power. Could go to a 2 .8 of 2.7 with E85. Which I might do it more stations carry it and if the goblin is to slow. Just kidding.
WHAT?!? Stop tinkering with your Goblin? Next thing you know there will be a For Sale sign in the window!My IAT2 with a 2.8" and DF's stock cooling with for the M62 stay really warm compared to those with huge coolers. I have a 2.9" to try sometime, but I really just want to drive my goblin and stop working on it so much.