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Old 06-19-2013, 01:33 AM
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Acme 1285 vs 1479 -- any experience?

I'm currently running an Acme 1285 on my 05 X2. (Was installed by the PO.) We board and surf but also slalom. I contacted Acme for suggestions on a prop that might lower my RPM's when skiing but still provide low end grunt. They suggested that the 1479 would lower my RPM by a couple hundred. Same diameter and pitch as the 1285 but .150 vs .105 cup. Anyone have experience with the 1479 prop? I'm not sure if it's worth the $$ just for a small change. I do know I could sell my 1285 in a heartbeat.
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2005 X2, Viper Red, MCX, Acme 1285, PPass, rear 750 sacs, KGB, IBS, Bennett Wake Plate
(previous) 2001 X5, 1991 TriStar 190
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Old 06-19-2013, 12:00 PM
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What engine is in the boat? EDIT - Just saw the MCX engine. How much ballast do you typically run?
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OJ PROPS 800-359-9730
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Old 06-19-2013, 01:18 PM
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For surfing we run about 1500lbs.
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"For every complex problem there is an answer that is clear, simple, and wrong." (Henry Louis Mencken)
2005 X2, Viper Red, MCX, Acme 1285, PPass, rear 750 sacs, KGB, IBS, Bennett Wake Plate
(previous) 2001 X5, 1991 TriStar 190
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Old 06-19-2013, 02:32 PM
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To drop the RPM for skiing and still have decent low end while loaded I would suggest our 14.75 X 15.5 LC Splined XMP EDGE 4-blade.
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OJ PROPS 800-359-9730
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Old 06-19-2013, 05:55 PM
thamax thamax is offline
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I ran the 1479 for awhile. I have both a 1285 and 1479. Both worked good for surfing 3200-3300 Rpm with alot of ballast. At 12 mph wakeboarding not much difference between them. 1285 had a higher top speed by 3 mph with no weight in the boat. I am running the OJ TZ X-5 right now and I feel it's a better all around prop running Serious weight while surfing and wakeboarding. Fuel economy is up for sure

Last edited by thamax; 06-21-2013 at 03:09 PM. Reason: willyt doesn't like my sentence
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Old 06-20-2013, 02:36 AM
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Quote:
Originally Posted by thamax View Post
I ran the 1479 for awhile I have both a 1285 and 1479 worked good for surfing 3200-3300 Rpm with alot of ballast at 12 mph wakeboarding not much difference the 1285 had a higher top speed by 3 mph with no weight in the boat I am running the OJ TZ X-5 right nowand I feel it's a better prop all around with serious weight and surfing and wakeboarding I know my fuel economy is up for sure
Your 1285 had a slightly higher top speed than the 1479? That seems to be at odds with what Acme indicated would happen for my boat.
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"For every complex problem there is an answer that is clear, simple, and wrong." (Henry Louis Mencken)
2005 X2, Viper Red, MCX, Acme 1285, PPass, rear 750 sacs, KGB, IBS, Bennett Wake Plate
(previous) 2001 X5, 1991 TriStar 190
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Old 06-20-2013, 08:05 PM
thamax thamax is offline
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Not much I think 43 mph and 40 was spread on them but I need to retest this year when I get a chance I am in a 4300 lb x-star mcx with a hotter cam so like 10-15 hp above stock
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Old 06-20-2013, 08:06 PM
thamax thamax is offline
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At 4000-5000ft elevation
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Old 06-21-2013, 10:05 AM
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Quote:
Originally Posted by EJ OJPROP View Post
To drop the RPM for skiing and still have decent low end while loaded I would suggest our 14.75 X 15.5 LC Splined XMP EDGE 4-blade.
Thanks Eric. Any idea what the approx. RPM gain would be at 34 mph running unweighted?
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"For every complex problem there is an answer that is clear, simple, and wrong." (Henry Louis Mencken)
2005 X2, Viper Red, MCX, Acme 1285, PPass, rear 750 sacs, KGB, IBS, Bennett Wake Plate
(previous) 2001 X5, 1991 TriStar 190
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Old 06-21-2013, 10:09 AM
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Quote:
Originally Posted by thamax View Post
I ran the 1479 for awhile I have both a 1285 and 1479 worked good for surfing 3200-3300 Rpm with alot of ballast at 12 mph wakeboarding not much difference the 1285 had a higher top speed by 3 mph with no weight in the boat I am running the OJ TZ X-5 right nowand I feel it's a better prop all around with serious weight and surfing and wakeboarding I know my fuel economy is up for sure
That... Was the longest sentence I have ever read
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