Propeller -- Rubber Hub?
11-27-2011, 09:33 PM
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Propeller -- Rubber Hub?
Hey guys looking at purchasing a new prop for the old girl, called Michigan Wheel and they expressed concerns at my power level with a rubber isolated hub. Dynoed 540hp 570 tq.
Running the 2nd gen OMC King (1992). I saw a best of 63mph on the stock motor (with stainless marine manifolds) running a 14 3/8 x 21" Ballistic @ 5150, and just under 62 @ 52xx with a 14.5 x 20" Raker (the boats stock prop).
After the build I can easily spin the 21" Ballistic to 5400, that's when I throttle back to keep from over revving. Purchased a 22" Raker (also has a rubber isolated hub) off ebay to try in the Spring, I have run it and it felt ok but I wasn't really pushing it as I was just getting hours on the boat before I put it away. I was looking at the 23" Ballistic as another option to keep the R's down if I need to, also with a rubber isolated hub.
Thoughts? Do you guys run props with rubber isolated hubs? Guess I never really thought about the hub before...
Running the 2nd gen OMC King (1992). I saw a best of 63mph on the stock motor (with stainless marine manifolds) running a 14 3/8 x 21" Ballistic @ 5150, and just under 62 @ 52xx with a 14.5 x 20" Raker (the boats stock prop).
After the build I can easily spin the 21" Ballistic to 5400, that's when I throttle back to keep from over revving. Purchased a 22" Raker (also has a rubber isolated hub) off ebay to try in the Spring, I have run it and it felt ok but I wasn't really pushing it as I was just getting hours on the boat before I put it away. I was looking at the 23" Ballistic as another option to keep the R's down if I need to, also with a rubber isolated hub.
Thoughts? Do you guys run props with rubber isolated hubs? Guess I never really thought about the hub before...
Last edited by brivander; 11-28-2011 at 08:48 AM.
11-28-2011, 11:16 AM
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I've seen spun hubs with less power than yours, but have also seen rubber hubs survive with more. Personally, I'd consider something with a solid hub like the Mirage+ 23" or Revolution4 23". If the hub gives at WFO, you'll need to be quick on the stick to prevent massive over rev. Cheap insurance.
Last edited by A.O. Razor; 11-28-2011 at 11:19 AM.
11-28-2011, 11:20 AM
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I've seen spun hubs with less power than yours, but have also seen rubber hubs survive with more. Personally, I'd consider something with a solid hub like the Mirage+ 23" or Revolution4 23". If the hub gives at WFO, you'll need to be quick on the stick to prevent massive over rev. Cheap insurance.
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11-29-2011, 05:50 AM
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They do make a hub kit, but I honestly can't remember if it's solid or not. I'm pretty sure they do. Give Brett @ Bblades a call, he can set you up with whatever you need.
Last edited by A.O. Razor; 11-29-2011 at 05:54 AM.
11-29-2011, 06:24 AM
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Definitely a solid hub.
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