there was an article in one of the mustang mags of a terminator - pully only - switching to e85. he gained around 15 hp/trq across the entire band. probly would be higher with the 4lb lower you want.
with a ts, obviously the gains are a lot more substantial.
in cali, i wouldnt switch yet as there arent many stations but its up to you.
I know you aren't doing for initial power BUT you did "wonder" how much gain you could expect in the 2nd quote above huh? Not to mention the thread title is "E85 Questions Non-Ported Eaton." And is why I posted IMO it's not worth the $$ for the posted 15whp increase. By all means as I said before run E85 on a twin screw, but don't expect the world with an Eaton.
:sleeping:, is that all ya got?
I'm I supposed to be impressed by 542whp 557 TQ or is there a Wednesday car somewhere in that 10 pg. thread I'm missing? I'm sure the above numbers have been attained with petroleum racegas as well. In fact I could probably attain them on my setup currently registering 519/566 SAE on 93 oct. and 17* timing.
The car ended up making more than that later and he only made 470 on regular pump gasoline. So I would say the HP increase was a lot more than 15 RWHP as you say.
And regardless, it DID make 27 more HP than your car on your expensive Race Gas.
Better re-read the quotes above I made no mention of 15whp the OP did. And my dyno was done on 93 octane NOT "expensive racegas."
But if you want to fight the WHP war I'll go fill up on my expensive racegas, hit the dyno and chase that extra 27whp you are bragging about. Only difference is I'll do it without putting another roughly $1k into my fuel system for fuel hats, injectors, dual fpdms etc. which are needed for E85. Again E85 NOT worth it for an Eaton setup.