Prop help, please
#1
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Prop help, please
Recently bought 1989 23' Webbcraft Velato, 454 mag engine, tag on valve cover states 365hp. At WOT it's turning 5200 rpm according to the factory tach and running 57mph according to phone app. The rpm seems high to me. I believe it's the factory prop, quicksilver 48 13704 A40 23p. 13" diameter. I think this will be ok for skiing, tubbing. But I'd like a cruising prop to get the Rpm down & the mph up. Any recommendations much appreciated, thanks in advance!
#3
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I'd leave it alone. 5,200 is perfect for a mag engine. You prop up you'll not like the no throttle response. If u try a 25 p mirage you'll drop to about 4,800 and probably drop a little too end and it will feel like a slug.
#5
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agree a 25p mirage would be way too much. The thing is he says he is doing 57 with a 23p prop at 5200 rpm. Thats a lot of slip. With the right 23p prop he should see 57 around 4400~4600 rpms. I dont think that 13"diameter prop has enough blade for the boat. A 23 mirage will have a largewr diameter and more blade area which should get his slip down, plus its one of the most popular props out there so finding one to borrow and try should be easy. If it will pull it the 24 Bravo Boatally mentioned would be nice
#8
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nope... four blades can be tricky.. the most popular 4 blade in our world is the bravo 1. The general rule of thumb is to drop pitch when adding a blade, however with the B1 thats not always the case. You also need to figure put what the boat wants for a prop... bow lift? Stern lift? Your best bet is to borrow props and try.... Or call BBlades, they have a program where you can try props and may have a really good idea where to start.