Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12
  1. #1
    Will Willfzs's Avatar
    Join Date
    Nov 2013
    Location
    Mechanicsburg, PA
    Posts
    566
    +1
    65

    vacuum/ rrfpr issue

    I noticed while playing with fuel pressure that when I connect the vacuum line it only drops 4lbs fuel pressure. I'm positive when I first set it up it would drop at least 8lbs. I at first feared the worst and checked cylinder pressure and all cylinders are between 115 and 120. I hooked up a vacuum/boost gauge and I have 18" of vacuum at idle which I'm guessing is normal for these engines (not sure). I took my regulator apart and everything seems fine. I checked all vacuum lines and they are also good. I initially even sprayed lubricant spray all around the intake and all vacuum lines while idling the engine with negative results in finding any vacuum leaks. I'm using an aeromotive 13301 regulator. I came across this the other day when I was testing and my performance and speed were normal. Any ideas? I am also pretty sure my BOV is not opening either so I'm not sure if idle vacuum is normal??
    Thanks


  2. #2
    boost junkie skidoochris's Avatar
    Join Date
    Mar 2012
    Location
    Davison, Mi
    Posts
    4,494
    +1
    476
    I have never seen a rrfpr drop 8psi on idle
    but 4 psi is normal

  3. #3
    run all your vacuums independently from the intake manifold then recheck the BOV the regulator sounds fine.

  4. #4
    Will Willfzs's Avatar
    Join Date
    Nov 2013
    Location
    Mechanicsburg, PA
    Posts
    566
    +1
    65
    [QUOTE=FXSlowKroozer;2408508]Will none of that really matters aslong as psi is rising and keeping WOT AFR within range i would not worry too much about it.[/QUOT
    Everything else is normal just getting paranoid not wanting to mess this thing up..

  5. #5
    Will Willfzs's Avatar
    Join Date
    Nov 2013
    Location
    Mechanicsburg, PA
    Posts
    566
    +1
    65
    Quote Originally Posted by FXSlowKroozer View Post
    run all your vacuums independently from the intake manifold then recheck the BOV the regulator sounds fine.
    I have all line into their own port I will just listen more closely next time I ride to listen for the BOV to open when I get off the throttle

  6. #6
    i am surprised you arent on the rev limiter now with a 85mm nozzle what rpms and boost are you seeing ?

  7. #7
    Will Willfzs's Avatar
    Join Date
    Nov 2013
    Location
    Mechanicsburg, PA
    Posts
    566
    +1
    65
    Thanks for the quick responses guys, I thought I was loosing my mind or chasing an invisible gremlin...

  8. #8
    Will Willfzs's Avatar
    Join Date
    Nov 2013
    Location
    Mechanicsburg, PA
    Posts
    566
    +1
    65
    I'm gong see Saturday when I ride I finally got a tach so I'm not guessing with the stock one. I haven't rode yet with the 85 exit and 91 steering yet.

  9. #9
    Will Willfzs's Avatar
    Join Date
    Nov 2013
    Location
    Mechanicsburg, PA
    Posts
    566
    +1
    65
    Quote Originally Posted by FXSlowKroozer View Post
    i am surprised you arent on the rev limiter now with a 85mm nozzle what rpms and boost are you seeing ?
    I'll see this weekend and post my results I guess I may need to repitch if my rpm gets up there..

  10. #10
    my guess is 8700rpm should be fine.

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Replies: 10
    Last Post: 07-04-2014, 11:41 AM
  2. HELP!! Rude RRFPR pressure issue!!
    By inteljd in forum Sea Doo Open Discussion
    Replies: 16
    Last Post: 07-05-2009, 10:29 PM
  3. Light to medium Chop riding issues
    By 05rxt in forum 4-Tec Performance
    Replies: 2
    Last Post: 07-22-2005, 11:48 AM
  4. who knows if Seadoo will cure the supercharger issue in 2006
    By rxp_boy in forum 4-Tec Performance
    Replies: 26
    Last Post: 07-17-2005, 09:30 PM
  5. 2003 1300GPR HULL ISSUES
    By RXPNJ in forum Sea Doo Open Discussion
    Replies: 6
    Last Post: 06-24-2005, 10:38 AM

Posting Permissions

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