Help me understand the mechanics here guys:
I have a 20 HP Tohatsu on a light Gheenoe type skiff. It is a center console rig. The factory prop is a 10 pitch aluminum which red lines(6100 RPMs) at about 3/4 throttle.
I put a SS 11 pitch on which does fine but will only pull 5200 RPMs.Top speed is about 23MPH with just me on board, 20 with a passenger.
Obviously with a small engine I'd like to get peak performance. Prop selection in that size motor is very limited so I considered putting a CMC tilt and trim on it. In addition to giving me trim ability it would set the engine back 5" and also allow me to place the motor higher off the transom.
My question is would those changes likely give me any more RPMs(or speed) from the SS prop?
Thanks for any thoughts or suggestions.