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Thread: Nozzle

  1. #1
    Robert63's Avatar
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    Nozzle

    I was wondering is it ok to re size my stock nozzle on my fzr to 85mm because I see allot of members going to the gpr nozzle?


  2. #2
    THE PLATE MAN JIM'S PERFORMANCE's Avatar
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    Quote Originally Posted by Robert63 View Post
    I was wondering is it ok to re size my stock nozzle on my fzr to 85mm because I see allot of members going to the gpr nozzle?
    That will be fine.

  3. #3
    lets race.... mikeFZR's Avatar
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    I think it's worth noting that a lot of the guys running with the 85mm nozzle are running an ecu and aftermarket SC. I have no idea if the 85mm would do much on a stock ecu/ SC ski. Probably just better holeshot.

  4. #4
    Robert63's Avatar
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    Sorry I forgot to mention my fzr has the vipec [email protected] ride plate, great and front cooled super charger housing, c3-11 wheel and duel prop. I am running 78.2 at 8640 rpm with full tank I want to install the wet wolf system but to nervous with the stock nozzle at 82 or 83mm I do not want to stuff and fly off so I figured if I went to 85mm that would take care of it.

  5. #5
    maxadrenaline's Avatar
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    Quote Originally Posted by Robert63 View Post
    Sorry I forgot to mention my fzr has the vipec [email protected] ride plate, great and front cooled super charger housing, c3-11 wheel and duel prop. I am running 78.2 at 8640 rpm with full tank I want to install the wet wolf system but to nervous with the stock nozzle at 82 or 83mm I do not want to stuff and fly off so I figured if I went to 85mm that would take care of it.
    If you increase the nozzle bore size you will gain RPM and better holeshot but will lose top speed. My experience has been 1mm increase in bore size = 100 rpm gain and 1 mph loss (approximate). Re-pitch the prop to compensate. Chasing the speed is always fun and time consuming.

  6. #6
    Just relax and enjoy the ride. XLT Chad's Avatar
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    Quote Originally Posted by maxadrenaline View Post
    Chasing the speed is always fun and time consuming.
    Boy isn't that the truth!!

  7. #7
    I like Boobs. wetwolf's Avatar
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    The AAT will get you back some of the lost top end from boring the nozzle. Sometimes when boring a nozzle, you dont lose all that much top speed since the motor can rev higher and gain some speed back.

  8. #8
    Robert63's Avatar
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    Thanks for all the advice I hope to get it to 80mph HOPE.

  9. #9
    hitman's Avatar
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    80 with a C3 and twin prop would be AWESOME.

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