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Thread: 300sx mods?

  1. #11
    Spongebob PWCToday.com Is My Home Away From Home attnondeck's Avatar
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    Re: 300sx mods?

    oh. and can i mill my head with a regular mill? like. the one in the machine shop in my school?
    Brendan

    1990 SN SJ 701 1990 SN Super Jet 650 Winter build
    1990 550SX
    1990 300SX





  2. #12
    Top Dog 84kawi550's Avatar
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    Re: 300sx mods?

    agreed with vshocky if those ports arent done just right the motor will become a grenade.
    Last edited by 84kawi550; 03-25-2010 at 09:19 PM.
    Jeep, Arctic Cat, and Kawasaki, just about sums it up.

    Co-founder of the First Church Of Internal Combustion.

    '84 JS550, 1mm reed motor, PJS half pipe, SBN44, skat 15
    '92 750sx, custom curved connecting rod.

  3. #13
    Spongebob PWCToday.com Is My Home Away From Home attnondeck's Avatar
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    Re: 300sx mods?

    Quote Originally Posted by vshockey10 View Post
    you can really mess your ski up if you dont know what you are doing with porting.. do research first on it dont just hack away hah
    yeah i know that!! thats why im hesatent on doing it to my skis...

    how far to advance timing on it? and which way...
    Brendan

    1990 SN SJ 701 1990 SN Super Jet 650 Winter build
    1990 550SX
    1990 300SX





  4. #14
    PWCToday.com Is My Home Away From Home vshockey10's Avatar
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    Re: 300sx mods?

    just mill the head run 93 bore the nozzle call it a day til she blows then use the 300 motor as an anchor and buy a 550 to throw in there it will work perfect with your 16*

    ohh top loader and shorten the hand pole so that pump actually hooks..

    how do you like your mariner ride plate?

  5. #15
    Spongebob PWCToday.com Is My Home Away From Home attnondeck's Avatar
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    Re: 300sx mods?

    i really like the plate!! its really good. can i mill the head myself? can i bore the nozzle myself? i have access to a lathe and a mill.
    Brendan

    1990 SN SJ 701 1990 SN Super Jet 650 Winter build
    1990 550SX
    1990 300SX





  6. #16
    PWCToday.com Is My Home Away From Home vshockey10's Avatar
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    Re: 300sx mods?

    for the boring take a dremel and go at it.. milling wait for a better answer from someone that knows more.

    what model do you have? im debating on cutting an x2 plate or looking for like a 12mm skegged mariner

  7. #17
    Spongebob PWCToday.com Is My Home Away From Home attnondeck's Avatar
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    Re: 300sx mods?

    what model what?
    Brendan

    1990 SN SJ 701 1990 SN Super Jet 650 Winter build
    1990 550SX
    1990 300SX





  8. #18
    Spongebob PWCToday.com Is My Home Away From Home attnondeck's Avatar
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    Re: 300sx mods?

    the plate? its skegged. 12 mm sounds about right. its bright pink!
    Brendan

    1990 SN SJ 701 1990 SN Super Jet 650 Winter build
    1990 550SX
    1990 300SX





  9. #19
    PWCToday.com Is My Home Away From Home Rushford_Ripper's Avatar
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    Re: 300sx mods?

    I would say mill the head, bore the cylinder, port it and save the cash for the pipe or trade parts!!! I'd like to hear that ski built.

  10. #20
    Spongebob PWCToday.com Is My Home Away From Home attnondeck's Avatar
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    Re: 300sx mods?

    its in really really good shape. wait till you see it! its beautiful!
    Brendan

    1990 SN SJ 701 1990 SN Super Jet 650 Winter build
    1990 550SX
    1990 300SX





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