RFi pumps rock!!
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  1. #1
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    RFi pumps rock!!

    My son is 6'4" and about 220. He loves his '96 XP and when his wear ring shredded in the middle of the season a couple years ago, I put my blueprinted pump from my HX in it. The hookup and off idle thrust were better with the blueprinted pump and so it just stayed in his ski. Recently, while camping, we shredded another wear ring. This time I went ahead and rehabbed an RFi setup I had around out of a GSX. Stuck the big hub pump with stock swirl impeller and stock GSX nozzles in his XP. Let me tell you, there is a VERY NOTICEABLE difference in the low end grunt now. I am 6'8" and currently 245# and it will just leap out of the water when you stab the throttle! Much of the aeration when spinning donuts is also gone, it seems to stay better hooked up. Of course through the years I'd heard about this being a great upgrade, just never did it. Also went ahead and got a couple GPS speed runs in. Half tank of fuel, trim full up, slightly windy, 6-8" chop, and me on board......still did a solid 57mph!
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    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  2. #2
    PWCToday.com Is My Home Away From Home Cliff's Avatar
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    Re: RFi pumps rock!!

    Awesome!

    What are your big hub pump nozzle sizes from the stock GSX?

  3. #3
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: RFi pumps rock!!

    I measured them and wrote it down in the shop. Seems like they were 80/85mm.
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  4. #4
    PWCToday.com Is My Home Away From Home Cliff's Avatar
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    Re: RFi pumps rock!!

    Much appreciated!

  5. #5
    PWCToday.com Is My Home Away From Home Benflynn's Avatar
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    Re: RFi pumps rock!!

    Nice, I rebuilt a rfi set up and never was motivated enough to use it, think I will now

  6. #6
    PWCToday.com Is My Home Away From Home Cliff's Avatar
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    Re: RFi pumps rock!!

    I have a nice RFI pump that I haven’t used yet from a GSX RFI. I also have both nozzles from a GSX RFI with the steering cable attachment. The openings measured(from memory, cause I don’t have them in front of me at the moment) for Exit = 82mm Steering = 89mm

    I also have a Skat Trak 12 vein Magnum Pump that I had sent off to Impros for a rebuild/refresh. That thing is AWESOME!

  7. #7
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: RFi pumps rock!!

    Ya guys, go ahead and bolt up those RFi pumps!! It really is noticeably better. Right before I loaded back up after testing it out, a pontoon boat had gone out. There were some 2ft waves spaced around 3 ft apart. I came at them running around 10mph at about a 45* angle. Standing up, feet at the rear of the deck, rolled over the first then pushed down to preload and stabbed it. I literally cleared the next 2 waves and came down just about vertical.......as in, almost TOO much throttle!! It doesn't seem the new pump upgrade really cares that I weight 245!!!
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  8. #8
    PWCToday.com Is My Home Away From Home Cliff's Avatar
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    Re: RFi pumps rock!!

    YEAH!!!

    That fun factor is what I’m talking about!

  9. #9
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: RFi pumps rock!!

    Big hub

  10. #10
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: RFi pumps rock!!

    This makes me want to graft a 155 pump into my HX and throw an '01-02 Gti impeller into it.........wonder if anybody has gone through the trouble?
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

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