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  1. #1

    2008 RXT-X Needing advise on the next Step Stage 2

    Needing some help:

    Here is what I have-
    2008 SeaDoo RXT-X 255

    Freshed Engine up 20 hrs ago
    New Riva 8.4 Pistons
    All new bearing, oil pumps ect...
    Riva High Performance Valves Standard Drop In
    Head Stud Kit
    Rebuillt Stock X Charger
    INTERCOOLER UPGRADE KIT
    OPAS KIT,PERFORMANCE
    REAR EXHAUST KIT
    Custom 4" Air Intake
    MTX-L: MTX Series Digital Air/Fuel Ratio Gauge Kit
    MTX-D: MTX Digital Series Vacuum / Boost
    MTX-D: MTX Digital Series Water Temperature
    Jerrys Cool Gauge Pod
    Intake Manifold Upgrade Kit
    Riva Catch Can Kit
    HSK Blow-off Valve Kit
    Riva Nozzle Reduction Kit (83mm Ring)
    EXT ROD, VTS
    PUMP WEDGE,2DEG
    Riva Intake Grate RXT-X 255
    Solas/Riva Impeller 15/22R
    Ski Ran 73 MPH @ 8020RPM on GPS.


    Im wanting to take next step but I have over loaded my mind with to much internet reading

    Here is my thoughts:
    Torx Racing ECU Reflash ( I know everybody hates JM but $400 vrs $1000 )
    Riva Titanium Retainers
    Riva RRFPR
    Stock Injectors? When do I need bigger injectors?
    Torx Exhaust Toque Plate


    I want to hit 75 to 76

    All your advise is much appreciated

    Thanks!


  2. #2
    shrabber's Avatar
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    Riva rrfpr Should be your first purchase, up your boost to 13-14 lbs get some 48's rework your ride plate or get a riva

  3. #3
    THANKS!!!!!!!!!!!!!!!

  4. #4
    Bob 1tommygunner1927's Avatar
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    Ditch the blow off valve and replace the Riva intake grate with an R&D grate. Raise the rpm by replacing the 83mm ring with the 85mm. Go test and report back.

  5. #5
    Thanks!

    Why ditch the blow off valve?

    Anyone messed with the TBM Intake Grate it comes with shim to tune

    What are the benfits of the R&D one?

    When does ECU come into play?

    Thanks for all the quick responses.

  6. #6
    Bob 1tommygunner1927's Avatar
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    The blow off valve isn't needed for a supercharger and works against the clutches. Can't speak for the TBM intake grate as I have only used the stock, Riva, and currently the R&D, which has good hook up and top speed and not likely to break like the Riva grate. The stock ECU can get you to 75. Read here:
    http://www.greenhulk.net/forums/showthread.php?t=152291

  7. #7
    Very Impressive Build

    I like the approach you have taken.

    I check out the R&D and I think it looks way better than riva and worx.

  8. #8
    There are two different R&D Intake Grates for RXT-X
    They make a Aquavein Stock/Rec one & a Pro 2 Aquavein Deep Race Grate Closed Course

    Which one is every one running.

    Also my parts REP is trying to get me to buy WORX instead he said there better. Any thoughts?

  9. #9
    Having Fun jp1300r's Avatar
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    First, Is the tunnel fixed?

    You looking for max speed? R&D grate REC one.


  10. #10
    Yes we repaired the tunnel.
    It cracked on us this summer, what fun that was.
    Click image for larger version. 

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