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  1. #1

    Getting more launch out of the water

    hi there,

    got an 05 rxt, jst in the process of putting new valves in, stem seals, head service for preventative maintenance

    I dont care for top speed or anything but would really love more launch when smashing the throttle from a stand still

    Launch to mid range say upto say 55 mph is where i would like it

    i do not want to modify the ski really as i want reliability but what things can be changed to do this?

    now i know the supercharger rebuild will be again due soon as i dont think its boosting fully, my max rpm seems to hit 7800 and i can only seem to get 61mph outta it, when we tested it there is a little bit of slip (read 4 on the special tool used)

    Thoughts?


  2. #2
    Banned User
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    More launch, you need to DEFINE that...

    Launch, as in "coming out of the water"?????
    Launch, as in "acceleration outta the hole"?????

    2 different things....

    One will cause you to bang the limiter, and not go anywhere...
    The other will feed a disease that you soon will catch......the "Mod Bug".....

    Don't deny it, you will get infected....


    On a side note, reliability can be obtained with simple yet effective upgrades that will HELP your motor to live a less restrictive, more efficient, and long reliable life...

    - Breath more air...(4" intake)
    - Cool more air...(external IC)
    - Exhaust more air...(open exhaust)

    All of this can be done cheaply, easily, and will make your ski MORE RELAXED in its life...



    ***side note, if the head is off....change that oil restricter in the block

  3. #3
    dpracing's Avatar
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    Quote Originally Posted by Danny View Post
    More launch, you need to DEFINE that...

    Launch, as in "coming out of the water"?????
    Launch, as in "acceleration outta the hole"?????

    2 different things....

    One will cause you to bang the limiter, and not go anywhere...
    The other will feed a disease that you soon will catch......the "Mod Bug".....

    Don't deny it, you will get infected....


    On a side note, reliability can be obtained with simple yet effective upgrades that will HELP your motor to live a less restrictive, more efficient, and long reliable life...

    - Breath more air...(4" intake)
    - Cool more air...(external IC)
    - Exhaust more air...(open exhaust)

    All of this can be done cheaply, easily, and will make your ski MORE RELAXED in its life...



    ***side note, if the head is off....change that oil restricter in the block
    +1000 on the mod disease

  4. #4
    HOSS's Avatar
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    3 blade prop or in your case just get a stock RXP prop from someone. Intake, Riva grate, exhaust mods more boost and your gonna need a wedge. Without the wedge you are shooting blanks.

  5. #5
    spouk3's Avatar
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    +1000 also on the "mod bug" i'm still infected two years later ... can't find any solution... I'm always buying more stuff from Jerry ...

    Reflash for sure, 4" intake + Riva IMUK ... Riva Fuel Regulator ... Exhaust ... Intercooler and probably a new supercharger ... And so on ... and so on ... for the rest of your days ...

    LOL!

  6. #6

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    What is a wedge

  7. #7

  8. #8

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    Thanks for that I am new and just learning

  9. #9
    captain slow Turbo Retro's Avatar
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    Worx grate, 13/18 3 blade prop.. Ext I/ c, bigger charger...

    Get bored of that, 20psi turbo satisfies the hunger!

  10. #10
    haha thanks guys i will get the ski up to scratch, as there is slip on the charger i got a mate who is going to rebuild that and check the wear ring is ok

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