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Old 10-16-2018, 09:00 AM   #5 (permalink)
Daox
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Join Date: Dec 2007
Location: Germantown, WI
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CM400E - '81 Honda CM400E
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Swarthy - '14 Mitsubishi Mirage DE
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I believe in order to run an efficient ethanol engine compared to gas, you really have to bump up the compression ratio into diesel territory. I think I've heard 14-17:1. Adjusting ignition timing and cam timing will only do so much. So, you can probably do this with a turbo or something that actually does alter the compression ratio like Nissan's VC-T technology.
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