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  1. #1

    Join Date
    Dec 2008
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    what mods would it take ultra260?

    what mods would it take to make a ultra 260 match the acceleration of a stock seadoo x-boat and hit atleast 71 consistently top speed? is it even possible with anything short of a turbo kit?


  2. #2
    Quote Originally Posted by Pooper_Scooper View Post
    what mods would it take to make a ultra 260 match the acceleration of a stock seadoo x-boat and hit atleast 71 consistently top speed? is it even possible with anything short of a turbo kit?

    free flow exhause, upgrade cams, 9.5 je pistons, R&D injectors, R&D breather, increase timing to 6 and you will get to or close to the top speed - may have to tweke a prop. Consider a one degree wedge

  3. #3
    DWRAT's Avatar
    Join Date
    Sep 2008
    Location
    PHX, AZ
    Posts
    135
    Riva ride plate will put you to 71 on the big end.
    At least it did for me.
    http://greenhulk.net/forums/showthread.php?t=108634

    I have 1 listed in the for sale section.

  4. #4
    if you're running offshore, we suggest you avoid the Riva Plate - significant loss of hookup

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