Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 22
  1. #1
    SOV's Avatar
    Join Date
    Nov 2014
    Location
    Cluj-Napoca, Romania
    Posts
    158
    +1
    2

    TIAL bov closed or slightly open on ilde

    Hello,
    My bov is slightly open on idle, is it normal or the spring is tired? I have E1 wheel and R&D cooler on my 2009 fx sho
    Thx for help


  2. #2
    HydroStream6's Avatar
    Join Date
    Jun 2012
    Location
    New York
    Posts
    649
    +1
    88
    That's fine. As soon as you touch the throttle it will close.

  3. +1 by:


  4. #3
    Leendert's Avatar
    Join Date
    Jun 2007
    Location
    Fort Lauderdale, Florida, United States
    Posts
    918
    +1
    73
    Mine stays open till about 5.5k rpm

  5. #4

    Join Date
    Mar 2014
    Location
    Siesta Key, Fl
    Posts
    1,066
    +1
    155
    Quote Originally Posted by Leendert View Post
    Mine stays open till about 5.5k rpm

    Are you joking?
    Any BOV that is open when you are making boost is an issue. The reality is at idle the BOV should really be closed but since we have a SC setup with a really light spring the vacuum of the engine is probably stronger than the spring to keep it closed all the way.

  6. #5
    silver93t's Avatar
    Join Date
    Jun 2012
    Location
    NJ
    Posts
    1,064
    +1
    49
    Normal for it to be open at idle. As soon as you hit boost it should close. You could try a different spring. Some manufacturers like Tial have a chart to match springs to the vacuum the engine pulls.

  7. #6
    SOV's Avatar
    Join Date
    Nov 2014
    Location
    Cluj-Napoca, Romania
    Posts
    158
    +1
    2
    Thx for help, I will try a new spring just to see how it works.

  8. #7
    fx160's Avatar
    Join Date
    Nov 2005
    Location
    gold coast australia
    Posts
    2,409
    +1
    193
    The bov will be open when ever you have more boost than you are using
    And idling is one of those times

  9. #8
    Leendert's Avatar
    Join Date
    Jun 2007
    Location
    Fort Lauderdale, Florida, United States
    Posts
    918
    +1
    73
    I dont make boost yet at 5500 rpm

  10. +1 by:


  11. #9
    SOV's Avatar
    Join Date
    Nov 2014
    Location
    Cluj-Napoca, Romania
    Posts
    158
    +1
    2
    What do you mean? I think your engine can not process 19 psi so the bov is open till 5k rpm.

  12. #10
    Leendert's Avatar
    Join Date
    Jun 2007
    Location
    Fort Lauderdale, Florida, United States
    Posts
    918
    +1
    73
    I have more than double the lift of the stock cams.
    my engine uses so much air that at 5.5k rpm is still have lots of vacuum.
    when i had a 19lbs wheel it made only 17psi boost at 9k rpm with these cams.

Page 1 of 3 1 2 3 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Anyone running tial BOV on stock boost?
    By r33pwrd in forum Yamaha Open Discussion
    Replies: 4
    Last Post: 06-23-2013, 03:45 PM
  2. TURBO or BIG SC on open sea?
    By Lbaronio in forum 4-Tec Performance
    Replies: 18
    Last Post: 10-12-2011, 09:21 PM
  3. To keep closed loop or get open loop?
    By mjds257 in forum 4-Tec Performance
    Replies: 10
    Last Post: 05-22-2011, 12:08 PM
  4. WTB interested on Vortech (or other) open application for Ultra
    By iceman in forum Kawasaki Classifieds
    Replies: 0
    Last Post: 08-24-2010, 12:47 AM
  5. fzr/fzs ecu - closed or open loop
    By mwahlert in forum Yamaha PWC Performance (4-stroke)
    Replies: 10
    Last Post: 06-10-2010, 07:42 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
  •