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IF...an Engine was purpose built to run on E-85, the compression could be increased Greatly, which would increase Power and Efficiency. Where there was no E-85, water injection could make up for the lack of Alcohol...to a point. I have run a heavily loaded ( 10,000 lbs.) pick-up truck engine with a 12.3 to 1 compression, on standard pump gas using a Water injection system, and a high overlap cam to kill low rpm compression. It worked Great until the water reservoir ran dry, going up a long hill pulling a boat. That was an UGLY noise. Engine survived , water refill and on our way.
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