Re: boat setup
The important part is where the cavitation plate is and not the motor clamp. It sounds as if the cavitation plate is about 1-2" above the bottom of the boat. If the prop is running entirely in the water....DO NOT run a cupped prop. Cupped props are for actually running upto the top half of the prop OUT of the water. A cupped prop on your present configuration would only slow you down. If you raise the motor UP not trim OUT on the transom then you can start to experiment with cupped props. In addition when running cupped props, they are more efficient at the upper end of the engines rpm envelope. A transom standoff bracket (jack plate) moving the motor as far aft as possible also helps. On the average, with all those modifications you can expect about 5 MPH gain in speed. A decent prop is about $400.00 and up plus the jackplate, longer cables if needed. This also stresses the motor and lower unit somewhat too. The whole modification process could cost well over a grand.
