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  1. #1

    GTS 130 GPS'd speeds before/after mods

    I know N/A ski's don't get much respect on these boards, so this is for those of you that have a 2011 GTI/GTS who are considering upgrading for more speed. Keep in mind my GTS is lighter than the GTI and has no reverse bucket in the way of the jet stream.

    All were done with 4 bars of fuel at around 75 degrees, calm(ish) water.
    170 lb rider

    Completely Stock - 56.1 mph (speedo showing 54)
    Ride plate holes filled - 56.7 mph
    R&D Power filter - 57.4 mph + 100ish rpm's
    Custom D-Sea-bel removal - 57.8 mph


    All in all cost me $150 and that includes a custom built/bent pipe from an exhaust shop.

    1.7 mph for $150 doesn't seem too bad to me. Since no new ski's for 2012 interest me, i'm going to continue to mod this for the hell of it. I love the hull and it is a fun ski to ride... acceleration is quick enough for now.

    Future mods:

    Solas impeller
    R&D intake
    Aftermarket sponsons
    Ride plate mod (winter)
    pump wedge

    Goal - break 60mph


  2. #2
    !!!! wave jumper !!!! 05_RXP's Avatar
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    good to see you got some mph for cheap mods. i will tell you with pretty much all the other guys on here the mods are contagious and you will always want to keep modding to gain more.

  3. #3
    Quote Originally Posted by 05_RXP View Post
    good to see you got some mph for cheap mods. i will tell you with pretty much all the other guys on here the mods are contagious and you will always want to keep modding to gain more.
    For sure, since im holding off on buying my performance ski, im just gonna have fun with this one. I was all set to pre-order the new RXP-X until i heard you have to lean into it to turn. Since other people are going to be riding it im sure, g/f included.... i dont like the idea of someone running into my boat because they forgot to lean.

  4. #4
    Never Time To Ride antoniodef's Avatar
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    The D-Sea-Bel removal...is that just removing the resonator?

  5. #5
    Quote Originally Posted by antoniodef View Post
    The D-Sea-Bel removal...is that just removing the resonator?
    Yes sir

  6. #6
    What's is max rpm you see?

    Jerry can lift the rpm limiter !

  7. #7
    Quote Originally Posted by mzmracing View Post
    What's is max rpm you see?

    Jerry can lift the rpm limiter !
    Flashes between 7300-7350....if im not hitting the rev limit would it still increase the speed? And would it void the warranty?

  8. #8

    Join Date
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    have you tried retarding the cam? I gained 200+ rpm when I did mine

  9. #9
    hussein's Avatar
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    Jul 2011
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    It's nice to see people modding n/a ski's...! I have a rental business and have a fleet of n/a skis. After some time, i just get bored and would like to start modding a few for my personal use....hehehe. I have ordered a solas impeller to begin with...! and was thinking of making the venturi smaller and also get a longer nose cone. WHat do u think...?

  10. #10
    You are hitting the rpm limiter !
    its set to 7300 rpm on the gti 130.
    So I imagine that setting it to 8000 rpm would gain some speed.

    So talk to mr Jerry about that, I assume that you have a bosch based ecu in it?



    Quote Originally Posted by ryanr623 View Post
    Flashes between 7300-7350....if im not hitting the rev limit would it still increase the speed? And would it void the warranty?

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