Thread: Help with prop selection

If you ran it up to 6,000 or over and it hit the rev limiter I’d say your tach is pretty accurate. If it is a 13-19 would drag it back close to 5900-6000. 13/21 would put it right in the operating range. 19 would maintain your hole shot with little not able difference. 21 would slow your hole shot a little but give you more top speed and keep you in operating range for that motor. Ideal situation is have someone you could borrow a prop from. Some dealers actually have used props around the will loan you.

There is a prop shop close by, I will call them and see if they have something I can possibly borrow or purchase at a reasonable price. I'm just going to go with aluminum for now until I know it works and then switch to stainless

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Originally Posted by huntersdad

There is a prop shop close by, I will call them and see if they have something I can possibly borrow or purchase at a reasonable price. I'm just going to go with aluminum for now until I know it works and then switch to stainless

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Honestly you might end up worse doing that. A SS prop will likely have more cupping, higher rake and less flex. Putting a 2" higher pitch alum might actually cause your rpm stay the same, or increase and wind up with less speed.

Cray is right about the tach, I think back then they had a rev limiter (stock powerpack) of like 6150rpm. It might even be printed on the powerpack.

I had a 94 Javelin 17’ hull with a Johnson 115. The Raker 20 was a good all around prop for my rig with a heavy stern from the fuel tank and 3 batteries in the back. I targeted 5500 as my WOT rpm. It would turn a 22 Raker with a light load but the hole shot was beyond awful, even with a full front livewell and weights up front. The best handling prop ok that boat was an old Shooter-it jumped out of the hole but lost a couple mph off the top end by switching to a four blade.

What was the 4 blade pitch? I don't care so much about overall speed as long as I can get my rpm in range when I put the throttle down.

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21p Renegade, could have sworn it was a Shooter prop but my old boat records say it wasn’t. I lost a couple rpm’s off the top when compared to the 3 blade Raker but it lifted the heavy rear end better and it handled better at all speeds.