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#1
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Yes - I would think a richer mixture would be necessary to
theoretically get to the 96.1% power level with gasahol. That the mixture has already been optimized for gasoline would make me expect an even greater power reduction for gasahol. Actually, there are many things that affect the mixture distribution more in an engine that the improvement of a mixture shift would be pretty insignificant. The accuracy of the mixture control and distribution in smaller and older aircraft is pretty mediocre by any modern EFI standard. |
#2
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No, if you richen up the mixture the gasahol will actually give more
horsepower and better climb, performance etc. But with more fuel consumption. Alcohol has oxygen in the fuel. Although it has less BTU per pound or gallon, if you richen it up to the highest RPM it will be much richer than gasoline, and more BTU per hour. |
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