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  1. #1

    Join Date
    Aug 2012
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    Upgrade RXT-X 2008?

    Hi there.
    I'm more and will build a machine for open competition in the offshore here in Sweden. (Seadoo RXT-X 200
    The goal is 330-350 Hp
    What do I do?
    bought this:
    Power Filter Kit, SD 255/215hp
    RIVA Breather, Catch Can Kit, SD RXP RXT GTX 4-TEC
    Exhaust Kit, Rear, SD 255/215 (fits RXP / RXT / GTX and X models)
    RIVA Sea-Doo Valve Train Upgrade Kit
    Connecting Rod Set, SD 255/215 HP (set of 3)
    RIVA Gen II Supercharger Impeller


    What do I need?
    Sincerely
    Richard


  2. #2
    surferd15's Avatar
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    I see you have a RXT-X 2008, and you bought a Riva Gen II supercharger impeller-that is for a 215 SC not your supercharger-you have the X model charger and use a 137mm wheel not a 127mm like the Gen II and 215 uses.

  3. #3
    Punisherx75's Avatar
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    Jun 2009
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    West Pam Beach FL
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    58
    Intake Grate

  4. #4
    ATNryan's Avatar
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    Apr 2012
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    River Crew CT
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    Quote Originally Posted by surferd15 View Post
    I see you have a RXT-X 2008, and you bought a Riva Gen II supercharger impeller-that is for a 215 SC not your supercharger-you have the X model charger and use a 137mm wheel not a 127mm like the Gen II and 215 uses.
    +1, your stock charger would be better.

  5. #5

    Join Date
    Aug 2012
    Location
    Sweden
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    Quote Originally Posted by surferd15 View Post
    I see you have a RXT-X 2008, and you bought a Riva Gen II supercharger impeller-that is for a 215 SC not your supercharger-you have the X model charger and use a 137mm wheel not a 127mm like the Gen II and 215 uses.
    sorry I meant
    RIVA XX Charger / X model supercharger upgrade.

  6. #6

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    The question is how much pistons can handle?
    How much more must be done to reach the 330-350? or 80mp/h
    How much the original can supercharger?

    Does not seem to be anyone here in Sweden who knows what to do. or so they do not want to tell.

  7. #7
    Eastside Powersports Slow 91's Avatar
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    Sep 2008
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    Make sure you take care of the pump tunnel first.

  8. #8
    ricky86's Avatar
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    why don't you call mr racing ( malte rosner )from re-performanceparts.com. He comes from sweden and builds super fast boats. here's a tread obout 1 of his boats


    http://www.greenhulk.net/forums/show...ormance+marine

  9. #9
    monaroman76's Avatar
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    Your going to need a bigger supercharger than that! Your also goin to need to spin the motor up to 8800 or so. I'd say a 3rude with 8800 ecu will get you close to 350hp.

  10. #10
    monaroman76's Avatar
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    Ideally you would want to upgrade your pistons if your pushing that much boost. You might get a bit of time out of your stockers if you run nice and rich up top.

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