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  1. #1
    PWCToday.com Is My Home Away From Home seadoobutch787's Avatar
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    Mar 2005
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    550/750 conversion parts upgrade

    I love the performance of my 550/750 conversion I built a few years back! The Rhaas pump kit and engine adaptor plate is awesome!! I'm looking for even more power lol!! Have any of you guys used or rode a ski with this R&D afterburner pump kit? I was thinking about getting one for my conversion. I know when I went from a OEM Seadoo 140 pump to a Skat Trak 6 vein big hub the performance and hook up was a lot better!! This is pretty much the same thing I believe.
    Attached Images Attached Images
    1997 Seadoo SPX---limited mod
    1996 Seadoo GSX--Cruiser
    1995 Kawasaki 550/750sx---Conversion ski
    http://www.pwctoday.com/showthread.p...750+conversion
    https://www.youtube.com/watch?v=ucxd...TcG7qp45xTX9xV

  2. #2
    PWCToday.com Is My Home Away From Home theVetteman3's Avatar
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    Re: 550/750 conversion parts upgrade

    I think there would only be an improvement. Give it a try and post back with how big of a difference it has made. We have on one of my brothers 1100 sxrs but never to my knowledge tried it back to back with and without.
    1985 JS550/800 "Pretty Red": Newmiller ported 800, SXR Mikunis, 650 PJS pipe, Rhaas 750 pump conv. w/ 11/17 Hooker [56.3mph gps]
    2009 SJ MINT:
    KP steering adaptor, bars, Worx 228 intake[45.6mph gps]
    2009 SJ:
    rebuild in process
    1987 WJ650: 6M6, JD Intake Grate, 17/20, 650sx cheater pipe[42.4mph gps]

    1998 SXI PRO:
    800 Superstock, 3DR hull mods[TBD mph gps]
    1994 XiR: 820cc, SS porting, Novi 48mm, VForce 3, Advent, PJS side draft, 13/18 swirl
    [53.7mph gps]



  3. #3
    I dream skis
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    Sep 2015
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    Re: 550/750 conversion parts upgrade

    Curious, I have thought the same thing Mike. I did get a lightened flywheel to put on this year. I have seen equal parts reviews, some for it and some against it. Pretty steep price tag. I suppose that your performance gain will be bigger with a engine that is already almost ready to go up to the next impeller pitch. Like from a 10/16 to a 11/17,

  4. #4
    PWCToday.com Is My Home Away From Home seadoobutch787's Avatar
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    Re: 550/750 conversion parts upgrade

    With my business account at Babbitts I get 20 percent above cost. I have a 9/15 hooker in it right now. I might go up on pitch next spring, heck I might even have Newmiller freestyle port my cylinders too lol.
    1997 Seadoo SPX---limited mod
    1996 Seadoo GSX--Cruiser
    1995 Kawasaki 550/750sx---Conversion ski
    http://www.pwctoday.com/showthread.p...750+conversion
    https://www.youtube.com/watch?v=ucxd...TcG7qp45xTX9xV

  5. #5
    PWCToday.com Is My Home Away From Home seadoobutch787's Avatar
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    Re: 550/750 conversion parts upgrade

    She is installed and ready for the weekend.
    Attached Images Attached Images
    1997 Seadoo SPX---limited mod
    1996 Seadoo GSX--Cruiser
    1995 Kawasaki 550/750sx---Conversion ski
    http://www.pwctoday.com/showthread.p...750+conversion
    https://www.youtube.com/watch?v=ucxd...TcG7qp45xTX9xV

  6. #6
    Resident Guru 2strokesmoke's Avatar
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    miami
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    Re: 550/750 conversion parts upgrade

    Like

  7. #7
    PWCToday.com Is My Home Away From Home tjmonsen5's Avatar
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    Re: 550/750 conversion parts upgrade

    How was it?
    If You're Not Running PJS Parts, You're Chasing Someone Who Is.

  8. #8
    PWCToday.com Is My Home Away From Home seadoobutch787's Avatar
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    Re: 550/750 conversion parts upgrade

    I test rode the ski last week. The performance is better! It pulls like a freight train even more! As for the 1-2 top end increase IDK since I didn't gps it before and after, I am more concerned about bottom and mid. The top end is still awesome! The first test ride I just had the R&D nose cone without any spacers. Dave at Impros said that when you add those spacers if should increase the top end and take away from the bottom. I will see if that's the case sat.
    Last edited by seadoobutch787; 08-24-2017 at 03:50 PM.
    1997 Seadoo SPX---limited mod
    1996 Seadoo GSX--Cruiser
    1995 Kawasaki 550/750sx---Conversion ski
    http://www.pwctoday.com/showthread.p...750+conversion
    https://www.youtube.com/watch?v=ucxd...TcG7qp45xTX9xV

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