Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: HELP/ADVICE -1986 17 Super Sport repower E-TEC 90 or 90 H.O.?

Posted by Phil T on 05/28/16 - 7:02 AM
#32

You want to have the motor mounted as high as she will go and a good stainless steel prop.

You want to prop the boat to hit the top of WOT rpm range with a light load. I would estimate you would be at ~ 50-52 rpm.

Given that you pull tubes, you should consider a second prop for just that with a little less pitch. It is not about time to plane rather RPM's with a load.