[Z275HOUSTON]

Hello Friends,

My SS prop 15.5" x 19 pitch is pretty beat up
I get 42 mph at WOT

Any suggestions on swapping with a different prop
To get better performance on Improving Too Speed?

[mikeyt]

What rpms were you running at WOT? Single or dual prop?

Did you look at any of the instructional STICKYS at the top of this forum?

[Z275HOUSTON]

4500 rpm it has a single 3 blade

Yes I read all the stickies
I also read about all this elevation.
I'm at sea level down here in Houston surrounding lake and river areas

[Motoxxx43]

$150 at a prop shop to rebuild it. Might gain you some speed if its beat up.
You could always try a 21p an see what it does. Prob drop your rpm to 4200. I think majority of motors are 4200-4600 wot.

[mikeyt]

You're probably not going to gain any real top speed no matter prop pitch you change to but it might be worth having the existing one rebuilt as Moto suggests as a new SS prop will be $250+. You might help your low-mid range performance a bit by going to a 20" - 4 blade SS prop. It should keep your rpms up around 4350-4400 and provide a little more 'bite' when accelerating without losing any top speed.

[Z275HOUSTON]

Thanks
What spline is on the bravo one out drive ?

[mikeyt]

Originally Posted by Z275HOUSTON

Thanks
What spline is on the bravo one out drive ?

Standard 15 tooth.