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Posts: 55
Location: Arena WI | I'm looking at buying a ss prop. I have a 17.5 crestliner with a 125 merc. alum prop is 12.75 x 21. Looking at a ss 13.5 x 21 or 22. what does the dia. change?
If I stay the same size and pitch how much will my rpm's drop?
Edited by birdsnest 7/12/2009 9:28 AM
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Posts: 1887
Location: syracuse indiana | go to a19p tempest plus you will love it on that boat.. believe me....greatr lift and gets your fully loaded boat out of the hole like a rocket...bill |
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Posts: 1887
Location: syracuse indiana | also it changes the rpm's and you have to be carefull with that . you dont want to go over the max rpm's |
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Posts: 433
Location: Cedarburg, Wisconsin | Diameter helps give the prop more grip. If you go up in diameter you would likely drop rpms from what you have now on the top end. It could give you a better hole shot if you are slipping now, or if you have a good hole shot now it might really slow you down getting on plane. Either way, the larger diameter is harder for the motor to spin because it pushes more water, which can either be good or bad depending on what you are trying to do. |
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