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  1. #1
    waz480's Avatar
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    What is the safe max rpm limit please ?

    What is the safe max rpm limit for a 2013 RXP-X 260 stock engine with only Les Cooke titanium retainers fitted please ? ,
    Thanks
    Waz


  2. #2
    boost junkie skidoochris's Avatar
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    why don't you ask les cook
    IMO about 8500
    I also see you like Iridium X plugs....
    have you read about the X plugs extra gap and how it cuts the power to the plug (anti-foul)
    and are not recommended for boost
    the Lazer Iridium plug is recommended for boost and is the standard plug in some oem boosted motors
    Last edited by skidoochris; 03-28-2014 at 07:29 AM.

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  4. #3
    waz480's Avatar
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    Thanks Chris , Les is on the other side of the world from me and i just wanted a quick reply or i have to call him before 6 am

  5. #4
    imp0ster's Avatar
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    iridiums still degrade in the boosted salt abuse air and are not worth the coin IMO. I run them exclusively on land since the things last so long and perform great.

  6. #5
    waz480's Avatar
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    Would i be better going back to the stock NGK plugs please ?

  7. #6
    J_Dolla's Avatar
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    I have the same setup and have been told by many 8650-8800 is safe. I've been running mine 8600 for a year and no problems

  8. #7
    idoodou's Avatar
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    was told by seadoo via a dealer i trust, that since 2012 seadoo change supplier for their springs and retainers and they are made of a different alloy and are good to 9000 rpm, not sure yet if this is true, still working on getting a second confirmation on it, what concern me is they have not changed part numbers, but this info came straight from seadoo. (which i know we all trust right LOL)

  9. #8
    waz480's Avatar
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    Quote Originally Posted by J_Dolla View Post
    I have the same setup and have been told by many 8650-8800 is safe. I've been running mine 8600 for a year and no problems
    Thanks Jamie,
    By the way i am not asking for my ski i am asking on behalf of a friend who only has Les Cooke titanium retainers fitted at the moment , He wants to buy my C kit , Injectors and 8800 max rpm ecu but i am not sure if the 8800 rpm limit on my ecu is too high for his ski without the lightened valves

  10. #9
    waz480's Avatar
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    Quote Originally Posted by skidoochris View Post
    why don't you ask les cook
    IMO about 8500
    I also see you like Iridium X plugs....
    have you read about the X plugs extra gap and how it cuts the power to the plug (anti-foul)
    and are not recommended for boost
    the Lazer Iridium plug is recommended for boost and is the standard plug in some oem boosted motors
    Would you know the part number for the Lazer Iridium plugs please Chris ?

  11. #10
    J_Dolla's Avatar
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    Prop it for 8600 and have a 200 rpm safety net IMO

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