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  1. #1

    Join Date
    Jul 2007
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    vassalboro,maine
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    speed questions????? need help please!

    hey guys, i have some questions on the speed and performance on these skis. i have a 99gsx limited 951 that is completely stock rite down to the air box,i have had it on gps at 62-63mph i have read the threads of skis with minor mods or alot and the speed seems to be the same? as far as my rpms go the most it has turned is 6775 but it mostly runs at 6725-6750. i want to do some mods to it,im just trying to figure what the best cost effective upgrades are(on a tight budget) does the speed im getting now seem right for this machine in stock form?


  2. #2
    race24x's Avatar
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    May 2007
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    Dont help him he is already a tiny bit faster than me LOL

  3. #3
    that aint fair i am only getting 57 on gps with my xpl. i am also turning about the same rpms. good luck with your gaining more speed.

  4. #4
    race24x's Avatar
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    May 2007
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    I know right? I have filters and jets plus impeller and he is about 1 MPH faster than me. Some skis are just better from the factory I guess. I am looking at a head microtouch rev and a concord 15/20 just so I can get by his stock ski WTH

  5. #5
    62-63 is right on for a stock GSXL. Back in '98, my stock GSXL was about 63 (1-1 1/2 mph faster on top end than my '98 XPL). However, with any chop, the XPL could pull the GSXL.

  6. #6
    Stop Obama Express
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    Intake grate without a doubt.... best mod i did.

  7. #7
    I have an itake grate and I top at about 60-61. I am thinking about loosing the grate - heard it actually slows you down.

  8. #8
    96XPSS's Avatar
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    Feb 2006
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    Warner Robins, GA Home of the 2007 All-Star Little League World Champions!
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    The grate does slow you down on a GSX hull...

    Any grate, other than stock.

  9. #9

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    Jul 2007
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    vassalboro,maine
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    i was thinkin to go with the filter kit first and see how i make out with that! can anyone tell me how much if any it will raise my rpm level? (stage one) i read the mod thread from ben on the 951! great info, and thanks for the input! as for you race24x you need to learn how to stay on your ski to beat me!!!!! lol

  10. #10
    Stop Obama Express
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    Quote Originally Posted by 96XPSS View Post
    The grate does slow you down on a GSX hull...

    Any grate, other than stock.

    ^^ He would know better than I would....

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