Quote Originally Posted by Sulland
Mapping the Fiesta for E85, what doesmthat do for the HP/NM ?
Speaking just theoretically (no own experience).

With E85 You can use richer fuel mixture because E85 contains quite a lot of oxygen. You can also use higher compression ratio because of high octane number of E85 but that means You need to modify cylinder head. Properly set engine for E85 shall be more powerful, especially in torque but it also must have much higher fuel consumption which can be a problem with really long sections between refueling.