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  1. #1
    otoss's Avatar
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    diffrence between watercraft speedo and GPS?

    Hi all,

    Just want to know how much mph difference between a oem watercraft speedo and a GPS?


  2. #2
    mrbtd's Avatar
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    3-60 mph off

  3. #3
    Having Fun jp1300r's Avatar
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    Mine is off by about 10mph.

  4. #4
    otoss's Avatar
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    Quote Originally Posted by jp1300r View Post
    Mine is off by about 10mph.
    You kiddin? lol because as I'm french I'm on km/h. RIght now I have a moded jetski with:

    XS intercooler, X supercharger, 15/20 strak tak, riva rear intake, stock injectors, moded waterbox, homemade block opas, and homemade thru hull exhaust.

    And on the speedo I'm only getting 112km/h first I was like wata F.. but then I saw that the speedo sensor (don't know if you call it like that...)on the rear bottom right was a bit mash up.

    That's why I wanted to know how many km/h or mph difference you all people see from watercraft speedo to gps.

  5. #5
    masta2000's Avatar
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    it maxes out at 112kmh, it wont give you speeds past 69mph. mine is dead on accurate til then, haven't heard of anyone else though

  6. #6
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    mine is off by about 6mph, and stops at 70mph.

  7. #7
    Mod less, ride more! troyheb's Avatar
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    Quote Originally Posted by JonnyRXT View Post
    mine is off by about 6mph, and stops at 70mph.
    +1

    Same here on both my ski's

  8. #8
    otoss's Avatar
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    ok, so where can I get a gps and is it easy to install?

  9. #9
    Having Fun jp1300r's Avatar
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    Quote Originally Posted by otoss972 View Post
    ok, so where can I get a gps and is it easy to install?
    EBAY.

    Check out my Youtube video. Has I am going under bridge speedo reads about 61mph, GPS about 53mph.

  10. #10
    otoss's Avatar
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    what type of gps should i look for on ebay?

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