I have a 40hp Nissan TLDI motor on a 17? glass boat. Fully loaded it is not reaching peak RPM range recommended by the manufacturer. The motor currently reaches 4700 RPM?s and should be in the 5150 ? 5850 RPM range at WOT.
I have a 12 pitch Michigan wheel prop on it currently and think I need to drop down to an 11 pitch prop.
Couple concerns I have, does running the motor wide open and not reaching peak RPM?s due to excessive load harm the motor? Will I lose top end by dropping to an 11 pitch? I suspect the increase in RPM will increase top end because it is below recommended range.
I have a 12 pitch Michigan wheel prop on it currently and think I need to drop down to an 11 pitch prop.
Couple concerns I have, does running the motor wide open and not reaching peak RPM?s due to excessive load harm the motor? Will I lose top end by dropping to an 11 pitch? I suspect the increase in RPM will increase top end because it is below recommended range.