Propeller Questions
I have a 90 hp Mercury that currently has an Aluminum prop. I can't run the motor at Wide Open Throttle due to the fact that the RPM's go above the manufactures recommendation so I have always just backed it down and cruised along. I am wanting to buy a Stainless Steel prop for this boat and was wondering what pitch prop I should buy. Right now it has a 21 pitch on it and like I said, I am unable to run WOT. Should I go up to a 22 pitch prop on the stainless or will there be a difference in the prop materials that will effect RPM's? Just curious if anyone has some experience with this sort of thing. For the record this is for a 18.5 foot aluminum boat, light boat but I would like to see what she will do with the right prop on it! Thanks in advance for your help.
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