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Thread: HX prop numbers

  1. #1
    PWCToday Newbie catpower's Avatar
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    HX prop numbers

    I sold my HX and the buyer wants to change stock prop out with more low end to help him side mount. top speed can be sacrificed if need be. I thought the HX was slow on bottom end anyway. We have a 18/23 Skat but i'm pretty sure that is too tall and meant for speed. Can someone advice us on what size is good for desired results.

  2. #2
    PWCToday Regular
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    Re: HX prop numbers

    You can call skat or solas and ask them. They should be able to help you out. I think I have a 16/21 which gave a little more bottom end on my stocker hx.

  3. #3
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    Re: HX prop numbers

    I have a 16-21 that came off from my HX when it had the 720 motor in it. I would like to trade for a 16-23, 16-24 or a 17-22.20171109_065732.jpg20171109_065800.jpg20171109_070042.jpg

  4. #4
    PWCToday Newbie catpower's Avatar
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    Re: HX prop numbers

    ok ya so that 18/23 is tooooo much for a stock 720. anyone running a bigger motor that wants speed i'm sure this prop will be for sale.

  5. #5
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: HX prop numbers

    The 18/23 sounds like its for a modded 787. If he's a big guy like me he should try a 14/19 or 15/20. The stock impeller is 11/22 and they don't do well off the bottom.
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  6. #6
    PWCToday.com Is My Home Away From Home john zigler's Avatar
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    Re: HX prop numbers

    When talking impeller numbers remember, they will differ from manufacture. Hub design, blade design, blade overlap etc all make a difference in the way an impeller loads the pump, and engine.

    Even the same company, impellers will differ. A big hub swirl skat will be different than a standard straight blade scat.
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  7. #7
    PWCToday Newbie catpower's Avatar
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    Re: HX prop numbers

    I spoke to Skat Trak and was told it is a swirl prop but is too much for a stock 720. This is a Skat Trak 18/23 swirl.

  8. #8
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: HX prop numbers

    Yeah that prop is way too big....& the 720 is a dog on the bottom & wont never pull very well off idle.

    Single carb helps the best & I just so happen to have a complete setup for that.

  9. #9
    PWCToday Newbie catpower's Avatar
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    Re: HX prop numbers

    just curious is that a single 44 or 46 with manifold?

  10. #10
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: HX prop numbers

    Stock Seadoo set up 40mm I body,I have everything you need except for the throttle cable which may or may not work....

    Intake manifold,rotary valve cover,40mm I body carb rejetted to elminate accel pump & rebuilt using Mikuni rebuild kit,flame arrestor housing pretty much a bolt on & go deal.

    I have done this swap before & it works very well for bottom end with no loss of topend. The single carb 720's are just a LOT more peppier than their dual carb models. This setup was used on GTI's,GS,GSI models.

    PM me if interested.
    Last edited by Grumpy Old Guy; 02-23-2018 at 06:50 PM.

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