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  1. #1

    gp1300 exit nozzle

    Could someone please tell me what the oem exit nozzle size on a (07) gp1300 is please and should i change it to something better?


  2. #2
    Happily Self-Employed WFO's Avatar
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    85MM

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    My son (mohawk man) jeffsntx's Avatar
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    All 1300's have an 85mm nozzle from the factory. It will be fine for the stock application. If you start modding the boat and cant get the RPM's up to the desired range you can put an 87mm nozzle from a 1200 on it and it will raise the RPM's around 60-90 RPM's.

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    Smile Thanks

    Thanks !! I hope all you guys enjoy mudbug and stay safe.

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    Mudbug?

    What's this mudbug I keep hearin' about???

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    Moderator RX951's Avatar
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    Quote Originally Posted by Winghrtman View Post
    What's this mudbug I keep hearin' about???
    welcome to the forum !


    http://www.greenhulk.net/forums/forumdisplay.php?f=38

  7. #7
    just GOT TO DO IT! great lakes gpr 1200's Avatar
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    Quote Originally Posted by jeffsntx View Post
    All 1300's have an 85mm nozzle from the factory. It will be fine for the stock application. If you start modding the boat and cant get the RPM's up to the desired range you can put an 87mm nozzle from a 1200 on it and it will raise the RPM's around 60-90 RPM's.
    I had just done some back to back testing a week or so ago on this. I gained .1 mph on top end.raised rpms 60-90 but hole shot sucked. Just My opinion.

  8. #8
    just GOT TO DO IT! great lakes gpr 1200's Avatar
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    welcome to the forum !

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