Turning Point props

[rs1lollie]

I can get a good deal on a Turning Point prop, but dont know which one to get,I have a 4 blade mercury alpha 4 prop 14x20 the Turning Point Legacy 4 blade prop only comes in 14x19 or 14x21. My question is which one would be the same as the one I have now.

 

[steelespike]

Re: Turning Point props

Its actually impossible to be accurate with a prediction. unless someone has actual experience with the same boat same props.In general all things being equal(which they aren't),we have different brands,a 19 would turn higher rpm than
a 20 and a 20 higher than a 21.Assuming the motor can twist up the 21 it will be go faster than the others.Without knowing boat details,brand of motor hp and max rpm.
and your present prop and max rpm and speed no way to tell what any will do on your boat.

 

[rs1lollie]

Re: Turning Point props

I have a 1990 maxum 18' 3.0l alpha 1 outdrive running a 14x20 alpha 4 mercury prop, 42mph @ 4800 rpms. wanting to get a spare prop and found a good deal on turning point legacy 4 blade prop. just want it to be comparable to the one i have on now.