Power difference between gasoline & ethanol...

[IGO 202]

Curious if anyone has done any back to back testing on a dyno and can show the difference (if any) between 100% gas and 10% ethanol?

I know on the EPA's website a while back it stated a 6% reduction in fuel mileage so I was wondering if there is a difference in power.

I know the benefit of e85 with the mods needed but straight up with no changes would 100% or ethanol produce any more power.

Also, when some one who is sharp like Shaun at AED write a different map between the two?

Thanks,
Dan

 

[IGO 202]

TTT for round two just in case someone with info missed it.
Thanks,
Dan

 

[badcobra]

I don't really see a point of doing this test? Most gas nowadays has at least a 10% blend of ethanol in it. Surely some places you can get non-oxygenated gas, but I can't for the life of me think it would be worthwhile unless for a snowmobile or a lawnmower or something like that. If there was any more power in 10% ethanol gas, it would only come from a very slight timing increase in most cases.