New Propeller Needed

[zippy83]

I need a new Prop on my outboard, but I am confused on what to get. I have done some research between stainless steel and aluminum but it really dosent tell me what I need for my purpose. What is currently on it is a stainles steel that has seen better days. I was also told if I get a smaller prop that I could gain 3-4 mp/h in speed. is that true?

here is what I have as far as the setup goes.

16' 1993 Lowe Aluminum (model 1605)
50HP 1978 Mercury

the boat is very light, Last time I took it out (the first time after I got it) I was able to puch 27-28 mph. That was when the prop was in good condition. I demaged it when I was backing up in the garage. soo what is the best to get for this setup?

Thanks A lot

 

[Georgesalmon]

Re: New Propeller Needed

To get any help you need to post the info about rpm at WOT at a minimum. If everything was OK you can just get a new prop that's the same as you already have. Or better yet get yours repaired, it can be made good as new. There are differences between AL and SS with SS being a little more efficient but if your like me money is always in the equation. AL is much less expensive and nearly as good now-a-days.

 

[steelespike]

Re: New Propeller Needed

Your prop size should be under the prop nut. See if you can answer the questions at the top of the prop forum.
Get us as much info as you can. Pitch changes up or down depend on your present performance info.
Reducing pitch typically increases rpm. Speed results depend on the present prop size and the rpm and speed.
Your boats dry weight is about 580 lbs.