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  #1  
Old 07-03-2014, 02:46 PM
roadster02 roadster02 is offline
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Acme 13x9

Looking for an ACME 13X9 3 blade LH 1" tapered shaft propeller. I would like to buy one if the price is right, or if someone in the Colorado region has one I can try out I would do that. Thanks
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  #2  
Old 07-03-2014, 03:08 PM
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east tx skier east tx skier is offline
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Is this what the high altitude guys are running?
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Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG.

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To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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  #3  
Old 07-03-2014, 03:21 PM
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André André is offline
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That's quite a low pitch...
I wonder what the RPMs will be at skiing speed...
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Old 07-03-2014, 05:18 PM
SKIBUMM SKIBUMM is offline
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I ski at 5000-7500 ft and I am not running anything close to that. Main prop is 13x12.
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  #5  
Old 07-04-2014, 11:33 AM
roadster02 roadster02 is offline
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I have a 13x11 OJ CNC 3 blade on the boat now, I am only getting 4100 RPM. and 40 MPH. Contacted Acme, and the 13x9 was the recommended prop to get the RPM up to 4500-4600 which is supposed to be the most efficient. Sounds to me like everybody is a little dubious.
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  #6  
Old 07-07-2014, 10:52 AM
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east tx skier east tx skier is offline
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Boat: 1998 Ski Nautique
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Not dubious, just curious.
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Previous: 1993 Prostar 205

Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG.

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Tyler Ski Club


To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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Old 07-07-2014, 05:37 PM
roadster02 roadster02 is offline
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I'm kinda wondering if running that pitch will only cause RPM to rise to the rated level, and nothing else. Maybe at this altitude I might be able to get the rated RPM but lose speed, so all I would accomplish is more wear on the engine. I'm wondering if the 240HP boats are limited to what I have now. That is why I'd like to try, before I buy.
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  #8  
Old 07-07-2014, 05:56 PM
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André André is offline
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At high altitude,getting 4100 rpms and 41 mph out of a 240 hp engine is not bad at all.
Maybe carb experts(which i'm not!) may suggess rejetting ...IDK!
Looking for better holeshot or top speed for footing?
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  #9  
Old 07-18-2014, 02:24 PM
roadster02 roadster02 is offline
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Just trying to get the optimum power from this engine. I have already rejetted.
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