Quote Originally Posted by omcstratos View Post
After running it today my best numbers was 18pitch prop turning at 6200rpm and I only could get 34mph out of it. I don't know what the ratio is but its the small gearcase for the 2cyls
I got the same prop,except it was tried on a 40 Mercury,42 mph was the fastest it would go. Slapped on a 3 blade power tec 10-3/8 x 15p fishing prop 45.2, slapped on a 10-3/8 x 18p mercury chopper 49.3