prop

[guylain]

I have a 22 foot wellcraft elite with ford 460 motor and a cobra. with this i run about 50 mph at 5400 rpm. i need to change my propeller for degrease my rpm to 4600.but i don't have any idee. I need any sucgestions (3 or4 or5 blade,diameter,picth,price is not important).Ihave now a 3 blades 14''x 21p.<br /><br /> tank you and sorry for my english

 

[chris in va]

Re: prop

If you go with a 23 pitch it should drop it down to about 5000. I believe a 4 blade will drop it down further, as my Pro Pulse composite did that after running a 3 blade for a while.

 

[akriverrat]

Re: prop

approx. 200rpm per inch. as for rest, prop selection is as much art as science.http://www.michiganwheel.com/MIWheel/propit/main.htm suggest you try this site.

 

[Boatist]

Re: prop

Guylain<br />To bring RPMs down 800 rpms you need to go up 4 inches in pitch. This will give you more speed and fuel mileage but a little slower hole shot. Did someone put in a bigger motor?? Reason I ask is normally they change the outdrive gearing to keep pitch in the 17 to 21 range. A 25 pitch may be a little harder to find.