Posts: 3508
Location: Elk River, Minnesota | Hiya,
I'm here for a few days...so if you get the RPM numbers, I'll chime in. No doubt going to an aluminum alone will reduce performance. What may likely happen is you will see more slip with the prop and with the motor mounted as high as it can go may mean very little ability to trim the motor up on plane without blowing out. One suggestion there that might (tongue in cheek firmly placed here) is a solas propeller which will act more like a steel prop at the price of an aluminum.
Depending on your RPM numbers, if they are not all that low and you do want the aluminum, you might be able to get away with a 4 blade solas if they make it. Just going aluminum will gain you some RPM's due to the weight of the prop and a little more flex than steel.
Another option if you would like to potentially stay stainless... Ebay. I have purchased many used props from there and all have been good props. I have yet to receive a prop that was not in good shape.
If a 4 blade is what you would like to stay in, and aluminum is not an option, that tempest prop would be a good bet. possibly dropping 2 inches in pitch (equivalent to roughly 400 rpms gained going down) would definitely help the hole shot, but top speed will be reduced a couple of MPH as well. Decent trade off if you pull tubes and skiers though...
I'll be around a few days here...
Steve |
