Hello Dhadley<br /><br />I recently bought a stiletto SS prop 14.25x15<br />(RPM's now 5800 and gained about 2 mph-42.5mph WOT)<br /><br />I had been using an OMC 15x17 SS<br />(RPM's were 5400 and was 40 mph WOT)<br /><br />Anyway, since the new prop is a smaller diameter how can I be sure that the prop is not slipping or over-ventilating. When running about 32 mph and trimmed up it doesn't sound quite the same as the old prop. It sounds like it sucking more air, although not too much air because it's not cavitating.<br /><br />Right now when trimmed up the ventilation plate is about 1-1/2 to 2 inches above the water.<br /><br />Does all this sound o.k. to you?<br /><br />Thanks in advance.
<br /><br />One more thing. When I received the new prop (the thrust plate side of the prop) the hub was a little off center. When I torqued the prop down to 60lbs-70lbs per instructions it seems to have properly centered itself. I guess this is normal. However, I'll never get another 60lbs-70lbs of torque on the nut because if i do then the crown nut will be advanced to far on the shaft for the cotter pin to be installed properly. So I just put the prop on tight enough to install the cotter pin correctly.<br /><br />Is the prop installed tight enough?<br /><br />Thanks again for the previous info.