Results 1 to 8 of 8
  1. #1
    Ski Hacks MG's Avatar
    Join Date
    Apr 2013
    Location
    Georgia
    Posts
    5,253
    +1
    990

    B1 wheel only showing 8-9psi

    I have checked all clamps, boost lines, vacuum lines and hoses. Everything seems tight and sealed. I am running a 13/22.

    Is the 11.5psi claim from Riva only on the stock pitch?


  2. #2
    superair's Avatar
    Join Date
    Aug 2008
    Location
    Smith Lake, Alabama
    Posts
    424
    +1
    20
    Do you know your rpm's

  3. #3
    Ski Hacks MG's Avatar
    Join Date
    Apr 2013
    Location
    Georgia
    Posts
    5,253
    +1
    990
    Waiting on my R&D tach to arrive. Should know in a couple days.

  4. #4
    AWA MEMBER
    Join Date
    Jan 2008
    Location
    Currituck, North Carolina, United States
    Posts
    4,616
    +1
    247
    Check for boost leak at throttle body and clamps to intercooler....could be clutch getting ready to go bit I'd check simple first

  5. #5
    AWA MEMBER
    Join Date
    Jan 2008
    Location
    Currituck, North Carolina, United States
    Posts
    4,616
    +1
    247
    Oh saw you checked clamps probably need less pitch or larger exit nozzle to get more rpms

    12/22 or stock pitch would yield more rpm

  6. #6
    Ski Hacks MG's Avatar
    Join Date
    Apr 2013
    Location
    Georgia
    Posts
    5,253
    +1
    990
    What's the most effective way to check for boost leak? Just soapy water around joints?
    Last edited by Ski Hacks MG; 09-10-2014 at 12:55 PM.

  7. #7

    Join Date
    Aug 2006
    Location
    Indiana
    Posts
    1,274
    +1
    81
    I had a stock prop pitched to 13/19 to get 8500 rpm and 11 psi boost. You have to have the rpm to get the boost number up.

  8. #8
    powerstroke specialist mikegp's Avatar
    Join Date
    Mar 2011
    Posts
    2,529
    +1
    190
    just to add, i was running the same setup on a 06 ho hull with a 85mm nozzle , 8380/8400 at 77.6 mph , i will definitely think you either have a boost leak or clutch going down. and if you analyze and compare what LT1 just mention , he ran a 13/19 at 8500 rpm , means that A 13/22 will run 8400 with the B1 wheel.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. WTB B1 wheel
    By wave15stx in forum Yamaha Classifieds
    Replies: 5
    Last Post: 02-19-2010, 09:06 AM
  2. B1 wheel vs. C3 wheel?
    By tsho in forum Yamaha PWC Performance (4-stroke)
    Replies: 5
    Last Post: 08-19-2009, 08:33 PM
  3. anyone got the new riva b1 wheel installed yet?
    By wave15stx in forum Yamaha PWC Performance (4-stroke)
    Replies: 0
    Last Post: 08-13-2009, 12:54 PM
  4. Riva B1 wheel installed SHO
    By superair in forum Yamaha PWC Performance (4-stroke)
    Replies: 2
    Last Post: 08-04-2009, 06:42 PM
  5. r&d c3 wheel vs riva b1 wheel
    By wave15stx in forum Yamaha PWC Performance (4-stroke)
    Replies: 5
    Last Post: 08-03-2009, 06:33 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •