Originally Posted By Ice~Eagle
@ 451Mopar The fuel's specific energy (SE) value, which is derived by dividing the heat value by the air/fuel ratio (Btu/lb ÷ A/F), telling us how much heat energy is delivered per pound of air into the motor. E85 SE is 9825 and E0 gasoline SE is 7891.


So, is this burning more fuel per unit of air why (one reason) E-85 is supposed to make more power than Gasoline (even equal octane race gas)?

I know you need to have larger injectors/fuel pump to fed the extra fuel. Just trying to see how the same engine can more power on E-85 compared to an equal octane gasoline?
I also know the extra fuel has cooling effects on the A/F and engine temps, but I was not sure the total BTU per unit of air was higher than gasoline?