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16:1 on E85 is a bunch. How big is the cam? (just to get an idea of cylinder pressure)


Both 14.5:1 and 9.6-1 A/F seem really lean too.

I've heard that mixing higher octane race gas with E85 is ineffective in bringing up the octane rating because the chemicals used to bring up octane in gas don't work in ethanol?

The highest Ethanol motor I know of is Darren's Hemi motor, but it's 15.5:1 and on E100.



I was told by John Kyle (owner of APD) the A/F ratio to use, and how to mix the fuel for higher octane rating. Also, as far as the gas, it made good power, and the dyno owner operator said the A/F on his machine, should be 14.5 to one. Also the EGT's on both looked typical to what mine run on the car. I have a racedata recorder, and can record runs. If you can't run E85 on compression that high, it's news to me, but that's how it looks. All it will need is rings, I just don't want to do it again. What is puzzleing to me is there was no sign of detonation on the plugs?