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  1. #1
    PWCToday Regular
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    Seadoo HX speed question????

    I've got a 1995 seadoo hx that in my opinion is pretty quick. It is bored .40 over, has light exhaust porting, a factory pipe with ecwi, micro touch rev limiter, xp 40mm carbs, primer kit, tau ceti flame arrestors, jetworks flow control valve, etc.... Everything else is stock as far as mods. It ran about 60 +or- yesterday on the water. What mods would anybody recommend next for a little more speed? Rideplate, impeller, bigger carbs, aftermarket head, etc?????? Any help would be awesome! Thanks!

  2. #2
    PWCToday.com Is My Home Away From Home kawi66's Avatar
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    Re: Seadoo HX speed question????

    if you hit 60 you have it all plus 5mph for the mods listed.
    my 785 mod race hx goes just over 60.
    Never trust a fart past forty........


    1998 farthing big red lightweight x4....1100 kawi conversion
    1997 sheldon carbon lightweight zxi

  3. #3
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    Re: Seadoo HX speed question????

    I hit 60 with just the mods that I listed.

  4. #4
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: Seadoo HX speed question????

    Quote Originally Posted by speedracer01 View Post
    I hit 60 with just the mods that I listed.
    How did you measure that ??? Be Honest
    Mikuni Carb Service/////////Offering Repairs on all Mikuni Carbs///Cleaning/Rebuilds/Freeing up Sticking Throttle Shafts & Accel Pump Repairs

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  5. #5
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    Re: Seadoo HX speed question????

    Gps

  6. #6
    PWCToday.com Is My Home Away From Home justforfun's Avatar
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    Re: Seadoo HX speed question????

    Best mine would go is 58 GPS'S on flat water with the same mods except aftermarket carbs so I think that is good speed and I would be happy if my HX runs 58 with the stock 787 but waiting on a waterbox to try it out. How much do you weigh? I think someone that's got 50 pounds less might go faster then a guy with 50 pounds more. Either way thats running good and if it ain't broke don't fix it.

  7. #7
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: Seadoo HX speed question????

    I had a 800 with pipe,head,carbs,mag pump & it went 60 & would beat my 720 SS any day.

    My guess is the gps is about 4 mph high
    Last edited by Grumpy Old Guy; 05-26-2009 at 02:50 PM.
    Mikuni Carb Service/////////Offering Repairs on all Mikuni Carbs///Cleaning/Rebuilds/Freeing up Sticking Throttle Shafts & Accel Pump Repairs

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  8. #8
    PWCToday.com Is My Home Away From Home kawi66's Avatar
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    Re: Seadoo HX speed question????

    Quote Originally Posted by Water Worx View Post
    I had a 800 with pipe,head,carbs,mag pump & it went 60 & would beat my 720 SS any day.

    My guess is the gps is about 4 mph high
    exactly dan,but what would we know?

    miller stage five 785 superstock engine
    48 mm novi carbs
    factory spec 2 pipe
    set back magnum pump 16/22
    60-62 mph at 7800 rpm.

    try another gps.

    and then try a skat impeller .
    Last edited by kawi66; 05-26-2009 at 03:02 PM.
    Never trust a fart past forty........


    1998 farthing big red lightweight x4....1100 kawi conversion
    1997 sheldon carbon lightweight zxi

  9. #9
    PWCToday Regular
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    Re: Seadoo HX speed question????

    I was also sitting right beside a bass boat doing 60. I did it just to the gps, because I didn't believe it either! I weigh about 162 or so.

  10. #10
    I dream skis
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    Re: Seadoo HX speed question????

    was the river flooded and going about 7-8mph?

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