I am considering building my Corvair flight engine to be E85 compatible. This is going together as a 3.4litre, "high" compression, 5th bearing engine using a modern sequential EFI (one injector per cylinder) and coil near plug (one coil per cylinder). I cannot think of anything that is not already being done- SS valves, new valve seats, etc.- in the motor. The fuel tank is already gas/alcohol resistant, and of course the fuel lines will be modern lines designed for use with alcohol fuels.
I anticipate the engine will run cooler on the E85 as well as much cleaner at a slight usage penalty.
I anticipate the engine will run cooler on the E85 as well as much cleaner at a slight usage penalty.