Postby greenracing » Thu Apr 19, 2007 7:36 am
Since you run darn near twice as much fuel through an alchohol motor as a comparable gas motor, I would think that you would need more e85 due to the percentage of ethanol in it.
I've never run water, so I've always gone strictly by exhaust temp to tune things. Based on that you're probably not too far off. It must be hotter for a longer period of time, which would heat the water up more. Maybe the gas peaked around there, but the heat curve wasn't as flat so you didn't see it in the water as much.
-just some thoughts...