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Old 08-30-2017, 12:35 PM
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Optimal Prop?

I need some input on prop selection. I am looking to get a spare prop to carry on the boat. I have checked the Wakemakers sit and don't see my boat/engine combo listed. (2017 XT21 with GDI 6000). Not concerned too much with top speed, we rarely exceed 40 mph. Looking to optimize performance and fuel consumption while surfing and wakeboarding. We run 3000 lbs ballast and as many as 9 people in the boat. 3150 rpm sat 11 mph. Boat was purchased with an OJ 15 x 16.5. Wakepro 82910 prop.
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Old 08-30-2017, 04:01 PM
jharmon203 jharmon203 is offline
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Join Date: Oct 2015
Boat: 2000 X-star
Location: Midwest
Posts: 728
Just contact the manufacture's directly. They will give you recommendations. They have all of the engine models and the specs of each engine. You will tell them what you have and they will recommend a prop. OJ and Acme are the two companies. Both are great products. Go with whatever you can find cheapest.
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Old 08-31-2017, 02:16 AM
kvw4x4 kvw4x4 is online now
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Join Date: Feb 2015
Boat: 2007 black mastercraft x15 going on 1700 hrs sold! Upgraded to a 2013 mastercraft xstar 👍
Location: Washington
Posts: 375
Get ahold of Eric Johnson at oj props. He will know exactly what to do
2013 mastercraft xstar 7.4 522hp motor added gen 2
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Old 09-05-2017, 09:22 PM
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Covi Covi is offline
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Not that it helps but, I have a new Acme coming on Friday. I could not be happier with the service, and advice so far. I've purchased direct from Acme with the understanding if I don't like it I can send it back for something different.

We talked for over 30min. going over props (no info over my head) until we decided the 1279 would be best. We'll see?
86' 19 Skier, 351 PCM (sold)
2008 197 ProStar, LY6 (sold)
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Old 10-13-2017, 01:13 AM
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What was the outcome on your new prop? What did you have? What did you change to? What improvement were you attempting to attain? Did you?

What boat? What motor/hp? What weight/ballast do you run?
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Old 10-13-2017, 11:23 PM
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moosehead moosehead is online now
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Join Date: May 2015
Boat: '15 X10 6.0L, '15 X30 6.2L
Location: Mountain West
Posts: 3,199
In addition to checking with Eric at OJ (he responds to emails quickly), you can reference Wakemaker’s 2016 X10 for their recommended scenarios & props. They recommend the OJ 848 (15x14) for heavy ballast in this boat.

FWIW, in our ‘15 X10 with 6.0L, I’m running either the Acme 1285 or OJ 845 (15x13), both are for either heavy ballast, or in my case ballast and high altitude. You may lose 1-2 MPH top end but both holeshot and staying on plane ballasted are much improved.

Lesser pitch will give you more grunt out of the hole, and you may end up liking a more aggressive prop and use your current screw as a spare.

Last edited by moosehead; 10-17-2017 at 10:26 AM.
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prop, xt21

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