Originally Posted by xntrik
Only thing that I can tell you is that METHANOL makes more power, run in the same circle track engine retuned for it...... tried it in more than one engine.
This is interesting! I'm not disputing your experience, xntrik, but this can only mean that ethanol won't tolerate as rich a F/A ratio as methanol.
Aha! I opened a new window and Googled the following, which confirms my conclusion in the preceding paragraph. (It's from Colorado State U.):
Methyl alcohol has the lowest combustion energy of all the fuels listed. However, it also has the lowest stoichiometric or chemically correct air-fuel ratio. Therefore, an engine burning methyl alcohol would produce the most power. It also is possible to take advantage of the higher octane ratings of methyl (and ethyl) alcohol and increase the engine compression ratio. This would increase the efficiency of converting the potential combustion energy to power. Finally, alcohols burn more completely, thus increasing combustion efficiency.