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  1. #1
    oklagp1200r's Avatar
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    Riva pro series reduction nozzle

    Does this nozzle have anything on it saying Riva or any numbers relating to them?
    Also did this nozzle always come with the 81, 82 & 83mm rings?
    I bought one off Ebay and was advertized as a Riva has no markings and came with 80, 81 & 82mm rings.
    Thanks


  2. #2
    DaveC's Avatar
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    Mine does not say Riva on it or have any numbers from them on it. The
    only numbers I see is the markings on the rings.
    It came with the 81,82 & 83 rings.
    Last edited by DaveC; 07-09-2008 at 08:40 PM.

  3. #3
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    Quote Originally Posted by oklagp1200r View Post
    Does this nozzle have anything on it saying Riva or any numbers relating to them?
    Also did this nozzle always come with the 81, 82 & 83mm rings?
    I bought one off Ebay and was advertized as a Riva has no markings and came with 80, 81 & 82mm rings.
    Thanks
    I don't really remeber if my venutri said Riva but i'm sure they would have taken the opertunity to fit it in if the could have. Mine came with 81mm,82mm&83mm rings

  4. #4
    kp04rxp's Avatar
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    The venturi does not say riva on it. It basically looks just like a stock venturi, mainly b/c it is. They have it machined to fit their rings. Should have come with 81,82,83mm rings. There are a bunch of other rings available also if for some reason you need them. I believe that riva even sells them in the .5 sizes...

  5. #5
    oklagp1200r's Avatar
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    Thanks guys!
    Iam spinning at 7950 to 8000 rpms now with stock nozzle water temp 84 air temp 94 and altitude 1200 ft Jerry always says sweet spot is 8100 rpms on the RXP so what ring do I need to get there or close?
    Stock nozzle is what 83mm I believe?

  6. #6
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by oklagp1200r View Post
    Thanks guys!
    Iam spinning at 7950 to 8000 rpms now with stock nozzle water temp 84 air temp 94 and altitude 1200 ft Jerry always says sweet spot is 8100 rpms on the RXP so what ring do I need to get there or close?
    Stock nozzle is what 83mm I believe?
    you would have to go to 84 or 85 ring IMO with your prop setup and conditions.
    If I were you I would take some pitch out of the prop to get you to 8,100 rpm with stock nozzle or 82 ring if pro nozzle.

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