1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

What Is It?

Discussion in 'Forced Induction' started by hondacivicnos, Jun 7, 2003.

  1. hondacivicnos

    hondacivicnos Senior Member

    Messages:
    135
    Likes Received:
    0
    Joined:
    Dec 6, 2002
    what does BLOW OFF VALVE doing to the turbo???

    [​IMG]

    And what is boost doing to the turbo???
     
  2. knowledge

    knowledge Senior Member

    Messages:
    1,410
    Likes Received:
    0
    Joined:
    Sep 30, 2002
    Location:
    Beale AFB, CA
    Ok as soon as you let off the throttle to shift your throttle body closes. If your turbo is still spinning at that time(which it will be) where does the pressure go? It hits the throttle body and starts comming back to the turbo. This slows down the turbo almost instantly which "shocks" the turbo's shafts and bearings. A blow off valve(BOV) releases that pressure when your throttle body closes to keep from shock loading the turbo. It also helps you by letting the turbo slow down ALOT more slowly. So as soon as you drop the clutch in the next gear, your turbo is still spooled up instead of almost stopped. This helps you have a smoother transition between gears. BOV's are sooooo worth the money! I hope this helped you!
     
  3. hondacivicnos

    hondacivicnos Senior Member

    Messages:
    135
    Likes Received:
    0
    Joined:
    Dec 6, 2002
    wow ok thanks.
    Now I understand the whole turbo thing.
    thanks again
     
  4. hondacivicnos

    hondacivicnos Senior Member

    Messages:
    135
    Likes Received:
    0
    Joined:
    Dec 6, 2002
    how does it know when to open or close. I mean what should I connect to it to it to work....???
     
  5. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

    Messages:
    9,622
    Likes Received:
    345
    Joined:
    Nov 13, 2002
    Location:
    MD
    it works by the pressure in the charge pipe. when the throttle body closes, all the compressed air is still in the pipe, and it pushes the valve open, until the pressure is equilized.
     
  6. knowledge

    knowledge Senior Member

    Messages:
    1,410
    Likes Received:
    0
    Joined:
    Sep 30, 2002
    Location:
    Beale AFB, CA
    Exactly! Most BOV's are adjustable by simply turning a nut. You can also swap out springs on most BOV's also to change pressure.
     
Verification:
Draft saved Draft deleted

Share This Page