Thread: Another Prop question for the experts

What RPM are you running at WOT now, and what is the max recommended RPM for your motor?

Originally Posted by CatFan

What RPM are you running at WOT now, and what is the max recommended RPM for your motor?

Thanks for responding, WOT was about 5200 or 5300, recommended was 5500 on the high end and 5000 on the low.

Originally Posted by mepperson

Okay guys, how much of a difference in performance would be found when going from a 10 3/8 x 14 pitch prop to a 10 1/2 x 13 pitch prop. Anything noticeable? Both are for my boat 05 Tracker PT 175 50 Horse Mercury. Both props were recommended. I currently have the 10 3/8 x 13 but it's pretty scarred up. I understand going down in pitch increases RPM's but I'm going up in diameter.

for ever number of pitch you go down, you gain 200 rpm's
for every number of pitch you go up, you lose 200 rpm's
what ever number pitch that will let you run as close to,
the max rpm"s thats recommend for your motor. without
going over, is what you want. I hope this helped.