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  1. #1

    Cavitation (Causes....Fix's)

    Hey Guys i was running my stage 3 rxp today with a new rxpx, offthe line we were fairly even for one or two seconds then i blitzed him however from a standing start i am getting some cavitation until i get up on the plain...i have a new prop and a ss wear ring what are some other methods i can use to fix this, becasue when i had a run on the x there is no cavitation at all.

  2. #2
    What are your r's @ wot?

  3. #3
    Dont judge me...
    Join Date
    Jul 2006
    pitch on prop?

  4. #4
    Rendog's Avatar
    Join Date
    May 2005
    jacksonville fl.
    How many hours are on the ski? Along with what they mentioned in post before me, the pump seal is somtimes a quick fix, along with carbon ring wear, engine alignment. I had a problem a while back where it seemed nothing I could do would fix my cavitation. I got some advice from Stan and Jerry on spacing the rubber boot slightly foward pressing the carbon ring against the metal ring!!! It WORKED GREAT!

  5. #5
    Gone in 3.0 seconds... RXPT400's Avatar
    Join Date
    Nov 2007
    What size prop are you using skat trak 15/19 or solas 15/20 with your set-up? Pitching your prop and playing your your nozzle rings wil fix that problem...

  6. #6
    Rpms are 8500 to 8550, prop is 14/19, its only off the start with pump nozzle all the way down...could this also have an affect?

  7. #7
    JFizzleJR's Avatar
    Join Date
    Aug 2005
    14/19?? 4-blade?? Being underpropped would cause these symptoms.

  8. #8
    pet's Avatar
    Join Date
    May 2006
    Washington DC metro
    my guess is the carbon ring, ... should 'nt you use 15/20 for stage3?

  9. #9

    Join Date
    Feb 2008
    picked up my Rxp last night from the shop. had the S3 SC, 15/20R and #42 Injectors installed. i also got the metal wear ring replaced new. the bike runs hard at top speed but i also noticed the bike cavitating off the hole untill i got on plane. need some help to fix this ! ! Thanks Guys ! !
    Last edited by RxpMia; 02-24-2008 at 09:01 PM.

  10. #10

    Join Date
    Jan 2006
    Rydal, Georgia U S A
    You need to get rid of that 14-19 for sure! 15-20 or 15-19 3 blade. The 15-19 3 blade would be the best match for the X. I have several 3 blades if you want to try them.

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