Looking for 28's - 32's for a 12* split case.
Been running 40's for a long time.
Somebody correct me if i am wrong....
I had to cut a 16 pitch prop down to 10 7/8 to get my little motor to pull the gear. That got me 6200,(burn about 5500) put in more cam, ditched the dart/domi for a t/r and 660's, moved some weight around, tweeked and tuned the present motor combo best i could without spending a bunch of money..That got me to 6950 and 107mph. The math says that's a ton of prop slip.
I am thinking that with less gear i can run more prop diameter, the prop will slip less = more efficient and more mph.
Is that how it work?
Cam should make power to at least 7400, I have 3 props that have more diameter...hoping for another 3mph..