300sx/701/144mm conversion…. - Page 2
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  1. #11
    PWCToday Guru eddie0899's Avatar
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    Yea, I was just seeing if the pipe was gonna fit. I'm gonna make it fit. I'll cut the side of the ski and bubble it out a little so the pipe has some room
    300sx 701/144mm conversion in the works

  2. #12
    Frequent Poster brian_216's Avatar
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    Re: 300sx/701/144mm conversion….

    1/2" is the perfect thickness to get the motor to line up. Stainless is going to be heavy. Order yourself a piece 3" x 1/2" by about 3 feet of 6061 aluminum. It's what I used and it worked great and didn't weigh a lot.
    Rage Composite Works

  3. #13
    PWCToday Guru eddie0899's Avatar
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    Re: 300sx/701/144mm conversion….

    Quote Originally Posted by brian_216 View Post
    1/2" is the perfect thickness to get the motor to line up. Stainless is going to be heavy. Order yourself a piece 3" x 1/2" by about 3 feet of 6061 aluminum. It's what I used and it worked great and didn't weigh a lot.
    I will definitely be ordering that. Thanks! Do you think I should find a superjet drive shaft or just get my driveshaft on my pump shortened and re splined? The waverunner driveshaft is a lot longer so id have to make my tray longer if I dont cut it or get a sj driveshaft
    300sx 701/144mm conversion in the works

  4. #14
    PWCToday.com Is My Home Away From Home vshockey10's Avatar
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    Re: 300sx/701/144mm conversion….

    how much shorter does it need to be? I have been getting alot of measurements on yami drive shafts lately for a build of mine lmk if I can help.

  5. #15
    PWCToday Guru eddie0899's Avatar
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    Re: 300sx/701/144mm conversion….

    I havent measured it yet, im taking it over to my friends house to compare the 2 tomorrow.

    The exhaust that I have is definitely not from factory. The head pipe is but the chamber isnt. I cant find any pipe that looks like it?
    300sx 701/144mm conversion in the works

  6. #16
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    Re: 300sx/701/144mm conversion….

    Nice build!! Pump swaps seem to be the way to go these days.
    JS550/650 conversion- ported (exhaust ports widdened 2mm, raised 1mm, transfers stair stepped, cases ported), Blackjack 46mm, Prok FA, Boysen reeds, stuffers, Westcoast head 30cc domes (175psi), Jetinetics charging flywheel, PJS exhaust manifold, Factory Performance Pipe, Coffmans Waterbox, footholds, Team Waterfly Tubbies.

    650 pump conversion- SXR prop cut to fit 650 pump repitched to a 9/17, TBM pump stuffer, OP nozzles, and OP skegged ride plate.

    JS550/650 conversion- in the works

  7. #17
    PWCToday Regular stingerjhn's Avatar
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    Re: 300sx/701/144mm conversion….

    Very exciting build! Post more pictures!

  8. #18
    PWCToday Guru eddie0899's Avatar
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    Re: 300sx/701/144mm conversion….

    [IMG][/IMG]






    im gonna fiberglass motor mounts in for the back 2 then use a metal plate for the front motor mounts



    This is where the engines gonna sit
    300sx 701/144mm conversion in the works

  9. #19
    PWCToday Guru norcaljetski's Avatar
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    Re: 300sx/701/144mm conversion….

    go go go go

  10. #20
    PWCToday Newbie SurfJet J's Avatar
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    Re: 300sx/701/144mm conversion….

    Progress??

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