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  1. #1
    Live Fast wave15stx's Avatar
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    riva adj nozzle/rings worth the money on sho

    im looking at this to add or lower some rpm with weather changes on my sho


  2. #2
    Taking money away from the Z06 Fund
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    Quote Originally Posted by wave15stx View Post
    im looking at this to add or lower some rpm with weather changes on my sho
    Dan, get the Riva nozzle and get the 86mm ring. Put it on and feel the beast accelerate!!! I gained rpms going from the 83 ring to the 86 ring and acceleration is killer! I think it's very worthwhile, as I have it on my SHO now. I will order the 84 and 85 rings shortly so I can fine tune it more once I put my new Boost wheel in. I vote for the product!

  3. #3
    Kristian Keppel Waterholics's Avatar
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    Quote Originally Posted by poof100 View Post
    Dan, get the Riva nozzle and get the 86mm ring. Put it on and feel the beast accelerate!!! I gained rpms going from the 83 ring to the 86 ring and acceleration is killer! I think it's very worthwhile, as I have it on my SHO now. I will order the 84 and 85 rings shortly so I can fine tune it more once I put my new Boost wheel in. I vote for the product!
    How do the nozzles work again, larger diameter more rpm's and acceleration or vice versa?????????

  4. #4
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    Quote Originally Posted by Waterholics View Post
    How do the nozzles work again, larger diameter more rpm's and acceleration or vice versa?????????
    Yes, the larger diameter the nozzle ring, the higher the rpms. I've experienced better acceleration with the largest ring, 86mm ring. I know Jerry and others leave the 86mm ring on their boats for the acceleration. Smaller diameter ring for lower rpms and some say higher top speed mph. I have noticed there's more cavitation with the larger nozzle rings.

  5. #5
    philip_gpr's Avatar
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    just to offer another idea, a 85 or 87 mm GPR nozzle would also give a larger diameter nozzle at a much lower price (though you would have to drill and tap 4 holes for the reverse bucket)

    or another option would be to have a 2nd impeller with a different pitch

  6. #6
    Live Fast wave15stx's Avatar
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    Quote Originally Posted by philip_gpr View Post
    just to offer another idea, a 85 or 87 mm GPR nozzle would also give a larger diameter nozzle at a much lower price (though you would have to drill and tap 4 holes for the reverse bucket)

    or another option would be to have a 2nd impeller with a different pitch
    yea i thought about another impeller which i might do anyways but the one im running now is on the money with slightly cooler air which we had here yesterday evening when i was testing i figure the rings can fine tune alittle rpms when needed im also thinking about a couple gpr nozzles not sure which route to go yet

  7. #7
    Phil.Borg's Avatar
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    i have the riva nozzle its deff easy changing rings then a prop

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