i have a new to me 1999 38 small twin step lightning boat came with 26 hydros which are all over rev limiter and not topping out where i believe it should be. i've gotten several suggestions from 28 or 29 hydros to 28 to 30 bravos? i would assume since boat came with hydros that they'd work better than bravos but have heard different from many. also kinda confused if i go with hydros do i need ones with the diffuser ring or ones without? thanks for your help in advance.

A friend of mine has a 32 Fever single step and he runs 26 hydro's. He has the 1.36 drives and spins them to 5k at 80MPH on the speedo. He has not checked it with GPS. Here is a link that may help you. http://www.rbbi.com/folders/prop/propcalc.htm

Call us if you want to try any of these propellers.

Brett