e85 The Question.....

I got my conversion kit from here:
http://e85carbs.com/

It took some tuning, but (from my results) picking up over 2 tenths in the 1/4 mile, and 1 tenth in the 1/8 mile is HUGE for essentially a simple carb rebuild that takes about 40 minutes. Everyone I have talked to picked up at least some going to e85, some more...some less, but all picked up something. I have heard rumors that some folks gained nothing, but I have not actually met anyone yet that didn't pick up some.

Rumble, the BTU's for gasoline is about 114,000 and for e85 it is about 82,000. So yes, e85 has less BTU's, but the stoichiometry of the 2 reactions at 1 lambda leans heavily toward e85…what I mean by that is, it takes more e85 to complete the same reaction. For example: The stoichiometric coefficient for a gasoline burn reaction in an engine is about 14.7:1….so 14.7 parts air, to 1 part fuel. The stoichiometric coefficient for e85 combustion reaction in an engine is about 9.7:1….so 9.7 parts air, to 1 part fuel. So, for the same amount of air moved, there is more e85 going into the cylinder for combustion than there is for gasoline. So that, in conjunction with the cooling effect of the alcohol makes more power than running gasoline alone.

Not sure if that helps or not, but there you go.