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  1. #1
    Mongoose's Avatar
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    VXR Compession Nozzle and Steering nozzle are the same size!

    Well-they are within 1mm of each other!
    I always thought steering nozzle should be quite a few millimetres bigger than the compression nozzle? 5mm seems to be the general opinion.
    Din't 'feel' strange last time out. Im just wondering how the streering will feel when I fit my auto drop nozzle (that's about 92mm)
    Btw VXR nozzles both around 87mm.
    Anybody have any thought's on this??


  2. #2
    Site Admin Green Hulk's Avatar
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    Very interesting. I haven't had mine apart yet to measure, I don't guess you measured the pitch on the impeller yet? I'm going to assume it's got quite a bit of pitch since it's running an 87mm venturi.

  3. #3
    Mongoose's Avatar
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    Quote Originally Posted by Green Hulk View Post
    Very interesting. I haven't had mine apart yet to measure, I don't guess you measured the pitch on the impeller yet? I'm going to assume it's got quite a bit of pitch since it's running an 87mm venturi.
    No-havent had the pump off-just looking and measuring to fit my auto drop.
    Jerry-bit off topic-do you know the height of the yolk on the Riva steering system you sent me, higher,lower or about the same as oem??

  4. #4
    Site Admin Green Hulk's Avatar
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    I haven't had a chance to install mine yet, but will do it later this week and will let you guys know.

  5. #5
    philip_gpr's Avatar
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    you guys should try a GPR 85 mm nozzle on these skis, if that speeds things up then try a FZR 83 mm.

    with a NA motor keeping the rpms up is not that critical so you might get lucky and get a top speed increase without even changing the impeller pitch

  6. #6
    Ricky Bobby's Avatar
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    Stock VXR

    Pitch = 13/18
    Nozzle = 86mm Round
    Deflector = 86W x 90H

  7. #7
    maxadrenaline's Avatar
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    Quote Originally Posted by Ricky Bobby View Post
    Stock VXR

    Pitch = 13/18
    Nozzle = 86mm Round
    Deflector = 86W x 90H
    That is good info...however my VXS pitch is 15/19
    Nozzle is 87mm round
    Steering nozzle is 87mm round.
    Crazy stuff huh ?

    chuck

  8. #8
    Mongoose's Avatar
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    Chuck,
    that's what im seeing, nozzles and prop.
    Quote Originally Posted by maxadrenaline View Post
    That is good info...however my VXS pitch is 15/19
    Nozzle is 87mm round
    Steering nozzle is 87mm round.
    Crazy stuff huh ?

    chuck

  9. #9
    bullett55's Avatar
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    [QUOTE] Ricky Bobbiy
    Stock VXR
    Pitch = 13/18
    Nozzle = 86mm Round
    Deflector = 86W x 90H
    [QUOTE]

    That is good info...however my VXS pitch is 15/19
    Nozzle is 87mm round
    Steering nozzle is 87mm round.
    Crazy stuff huh ?
    chuck
    Are both of the above correct VXR and VXS specs? And if so, does anyone know why the difference...., just cureous. Thx

  10. #10
    maxadrenaline's Avatar
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    [QUOTE=bullett55;1851611][QUOTE] Ricky Bobbiy
    Stock VXR
    Pitch = 13/18
    Nozzle = 86mm Round
    Deflector = 86W x 90H

    .



    Are both of the above correct VXR and VXS specs? And if so, does anyone know why the difference...., just cureous. Thx
    I can vouch for mine as correct on the VXS, and pretty sure Ricky's is correct since he and I compare notes quite often. I have seen several different bore sizes posted for the two VX models all within a couple of mm and nobody knows why. I am currently running a 88mm GPR nozzle and a SHO steer nozzle. Going to try a 90mm steer nozzle soon to see how that works out. Will try to run that during the holidays

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