RE: Super tigre G90 speed prop?
i have a g90 on a f5 tiger and im using a 13x8,,i have a mig 21 also with a g90 and im running a 12x8 on it. i have had good luck out of those size props on these g90s....i think the 12x8 is the all around prop for that engine.,,,you could also try a 12x9......i tryed a 12.5x10 but that was just to hard on the engine..