Prop for my V

[tsubaki]

Now, if I will ever get off my butt and get motivated, I'll try to see if I can get mine to the correct rpms with a prop I've had a couple of years.

[smkinnan]

well, used the 15x16 over the weekend.....what a piece of crap I still have no idea which way to go but I am definately putting the SS 14 1/2x21p back on. It outperforms the Aluminum 15x16 which question. I got the following numbers on the 16p prop over the weekend:

25mph - 3800rpm
32mph - 4200rpm

Couldn't seem to push much beyond 4400rpm so I didn't try. Absolutely sucked through the gas like nobodys business. I didn't realize that I have either a bad fuel guage or fuel sender until late on Sunday when I had to call Sea Tow to come and get my butt I am going to start a separate thread about how to test those two components to see which one is bad.

[THEFERMANATOR]

Originally Posted by tsubaki

See if FERM can give you the max rpm's intended for that motor.

That would be 4500-5500 for acrossflow OMC, but 5200-5500 is best. Whatever you do do not run it at 5750-5800 for sustained periods of time though. Crossflo engines have an inherent harmonic vibration in them at that speed that has resulted in more than one exploded flywheel from sustained running at 5800 RPM's.

[smkinnan]

Originally Posted by THEFERMANATOR

That would be 4500-5500 for acrossflow OMC, but 5200-5500 is best. Whatever you do do not run it at 5750-5800 for sustained periods of time though. Crossflo engines have an inherent harmonic vibration in them at that speed that has resulted in more than one exploded flywheel from sustained running at 5800 RPM's.

Thanks Ferm...I appreciate the information.