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  1. #1

    Upgrade HP on 2003 GTX Super Charged 185

    My friend at the marina wants to give me a 2003 gtx blown engine. When I rebuild/replace the powerplant, what is needed to upgrade the 185HP to perhaps 250? I am thinking about getting it this weekend and this type of craft runs well in the bay compared to the older 98 GTXL.

  2. #2
    JT jpt7779's Avatar
    Join Date
    Jul 2008
    Pittsburg, Texas Lake Bob Sandlin
    Frank start reading this thread:

    Major undertaking and $$$ to say the least, cast pistons, SC gearing, injectors, small tunnel, 155mm pump, 7650 rpm ECU, on and on and on.......

  3. #3
    SuperCharged67's Avatar
    Join Date
    Jun 2012
    Halifax, NS, Canada
    Find a used 255 engine and drop it in. You would need electrical components but other then that you should only have about 3K in it with little work.

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