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  1. #1
    Join Date
    Dec 2007
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    savannah, ga
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    more power from a 225 hpdi

    i am looking for a 300hpdi for a flats boat, and have come across a good deal on a 225. being both motors are 3.3L, im curious where the difference is? a friend (yamaha mechanic) says the porting is different, tuner is different, and computer is different. is that it? could a 300 computer, hydro tec tuner, and a different set of heads be used to make the conversion? or will the entire powerhead need to be swapped? i will talk to him tomorrow about it, just wanted some secondary input. thanks...

  2. #2
    Join Date
    Jan 2005
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    Try calling Hydrotech. Those guys really know their stuff!!
    Support Our Troops!

  3. #3
    Join Date
    Sep 2002
    Location
    Lakeland,Fla
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    2,500
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    Yes the block is different
    Fellow G-Man of the Sunshine Syndicate-Dixie Wrecked Chaptor..
    We Put The F. U. in FUN
    94 17MA Maverick 115 Yamaha
    2006 Mustang GT, with a belt driven air cleaner

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