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  1. #1
    bradsta's Avatar
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    X s/c upgrade or more rpm??

    Guys iv'e got a 08 rxpx done 42hrs, my question is which will give me more gains?
    Do i go the mini rude upgrade and a rrfpr, or do i go a les cooke ecu reflash (8650) and retainers?
    Also the ski is getting a 4" intake, 83mm nozzle and solas 15/22r prop at the same time.
    I will do both boost and ecu but $$$ means only 1 at the moment!!
    cheers bradsta..


  2. #2
    mac_man_luke's Avatar
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    Id say go with the reflash+retainers first - the upgraded charger will function best with the higher rpm limit

  3. #3
    Orlando Shark's Avatar
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    I would say get the Riva drivetrain and get the 9.2K reflash and stay around 9k, your ski will really wake up at those revs.

  4. #4
    captain slow Turbo Retro's Avatar
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    hmm..

    get a c kit or something equivalent, sayers seems to be collecting a few down there in melbourne

    run the rrfpr with the stock injectors.. keep the stock ecu, nozzle down to 83mm, 15/22 or 15/20 prop and bigger air intake..

    save yourself the money in retainers and reflashing and get a new charger which would be cheaper... you after top speed?? then ignore what i said above... ski will still be quick though

    i ran a c kit for 60hrs with my rxt and loved it... it was reliable and pretty quick for the ship that the ski is

  5. #5
    mac_man_luke's Avatar
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    stock #38 injectors with ckit? need 42s for xcharger or 48s for ckit level boost etc

  6. #6
    captain slow Turbo Retro's Avatar
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    Quote Originally Posted by mac_man_luke View Post
    stock #38 injectors with ckit? need 42s for xcharger or 48s for ckit level boost etc
    i was running rich with stock 07 ECU, rrfpr, bosch 42's and c kit set at 60psi base pressure...

    as LONG as he keeps his stock ecu and aims for 8100 rpm setup and doesnt go for reflash etc.. may be a different issue then...

    i clocked up 60hrs with the c kit with above setup.. wound the base back to 55psi in the end.. it ran great..

    running the turbo with 50lb injectors... and rrfpr...

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