What pitch prop. do i need

[striper-chaser]

I have a 21 alum. starcraft with a 150 merc. efi and it runs 4800 rpms at wot. could someone tell me what pitch i need im thinking a 17 pitch, am i right or would it be another pitch. Also does raising the motor on the transom help a little also?

 

[striper-chaser]

Re: What pitch prop. do i need

I forgot to give you the pitch i have on it now. Its a 21 pitch prop.

 

[Dhadley]

Re: What pitch prop. do i need

That would be about right. Try raising the motor now and see what we gain. Is your prop stainless steel?<br /><br />Let us know!

 

[Spidybot]

Re: What pitch prop. do i need

Your motor should be within 5000-5600 rpm at WOT.<br /><br />As a rule one inch pitch equals 200 rpm so a 20" should land you on 5000. This would be like overdrive.<br />A 17" should land you on 5600 and be like a pretty low yet powerful gear. Pretty good hole shot but not the highest top speed.<br /><br />And if you really want to know about props and much more, go here http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=17;t=014920

 

[striper-chaser]

Re: What pitch prop. do i need

Yes it is a 3 blade ss prop.