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  1. #1
    robby212's Avatar
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    riddle me this (rxp top speed???)

    So i took my 04 RXP out and with my GF on the back (I'm 150 and she is 135) my speed was 70mph(topped out WOT) on the speedo with a full tank and trim full up. I assumed it was a bit off. NOW here is the kicker after burning a 1/2 tank of gas I let her get off, zero'd out my GPS and hit it again 70 (topped out WOT)on the speedo trim up and gps max at 70.1 My question is how do I account for for no change in top speed after losing at least 150lbs? does this make sense?


  2. #2
    Mod less, ride more! troyheb's Avatar
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    You say 70 on the speedo with your girlfriend on the back, what was the gps? What mods are done to your ski if any? 70.1 for a stock RXP sounds kinda fast.

  3. #3
    robby212's Avatar
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    I didn't have the gps at first, after burning a half tank i got kinda curious and when i got back to the dock i grabbed the gps out of my truck. I have a rivia cold air intake and solas 15/19 prop.

  4. #4
    Mod less, ride more! troyheb's Avatar
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    Speedo numbers aint worth a crap. You need to compare gps to gps. My bet is you were about 67-68 with the girlfriend.

  5. #5
    robby212's Avatar
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    yeah next time I go out I'll have to check the GPS with her on it. I just pulled the SC the previous owner had no idea about the washers so figure i might as well change them before the season is in full swing.

  6. #6
    robby212's Avatar
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    here is a vid of the 70.1 pass


  7. #7
    Having Fun jp1300r's Avatar
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    If its like my PX the OEM speedo stops at 70mph. So you could be doing 85+ mph on GPS and the speedo will still read 70mph.

  8. #8
    Having Fun jp1300r's Avatar
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    Watch my speedo in this video. I am doing 70mph at about 7400rpms. I am doing over 82-83mph on GPS in this video.


  9. #9
    robby212's Avatar
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    why would they stop at 70?

  10. #10
    Having Fun jp1300r's Avatar
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    Quote Originally Posted by robby212 View Post
    why would they stop at 70?
    Thats just how SD been doing it for years. There is a thread on here somewhere about reprograming the ecu so the speedo will read over 70. You will need a good friend at a SeaDoo dealership to get it done on BUDS.

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