I need more power Scotty ... that's all she has Captain!

[bouner]

1987 100 hp comercial v4 johnson. Wont pass over 5,000rpm. I use a 14x17 prop (which is the factory prop) and i pull a montauk 17 Boston whaler. MPH in the speedometer read 38 with 2 people onboard. Should i get more RPM's or stay here? I read in some posts of Guru's that a good reading would be 5,800rpm. I seem to be to far down. I know if a put another prop rpm's would change, but which prop?

 

[Dhadley]

Re: I need more power Scotty ... that's all she has Captain!

Assuming you have the original gearcase you should be able to run a fairly high X dimension using a prop with that much diameter. <br /><br />We also are assuming the motor is running corrctly and is indeed reaching WOT (wide open throttle). IE -- the linkage goes all the way open.<br /><br />If this is all true, then try playing with the set up. Raise the motor on the transom and see what results you get with the same prop.<br /><br />Keep us informed and good luck!