 Need opinions...BOV or Bypass valve??, yo' turbo dudes :) |
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| Mueller |
 May 10 2005, 04:25 PM
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914 Freak!  Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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blow off valve venting to atmosphere or a bypass valve???
with my car being as "rice" as it is, a loud BOV almost seems like a natural (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
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| lapuwali |
May 10 2005, 04:51 PM
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743  |
Blow off valve just vents the excess air between the turbo and the throttle plate out to the atmosphere. Less plumbing, more noise. A bypass valve is basically the same thing, but it directs the atmospheric vent back into the plumbing before the turbo. This is not only less noisy, but it can theoretically help keep the turbo spinning with the throttle closed.
If I were designing my own turbo plumbing, I'd study every photo and diagram of recent WRC turbo systems I could lay my hands on. The data is scarce, but it's clear they have excellent turbo setups, and they seem to all do something with the bypass system to reduce lag to an absolute minimum. |
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Posts in this topic
Mueller Need opinions...BOV or Bypass valve?? May 10 2005, 04:25 PM
bd1308 BOV.......Gotta have it....the bypass just doesn... May 10 2005, 04:28 PM Aaron Cox get the chirping kind so you fit in with the ricer... May 10 2005, 04:28 PM Andyrew Explain to me a bypass valve...
You dont have to ... May 10 2005, 04:29 PM Mueller <... May 10 2005, 04:32 PM Aaron Cox just run a noisy one....
like you canhear it anyw... May 10 2005, 04:34 PM bd1308 bypass quieter much May 10 2005, 04:36 PM bondo If you're using any kind of airflow measuring ... May 10 2005, 05:39 PM Mueller well it looks like the bypass is the way to go wit... May 10 2005, 06:08 PM bondo If you really want the sound you can get one of th... May 10 2005, 06:13 PM TimT BOV at LRP
Get a BOV... we use them on all our tu... May 10 2005, 06:24 PM lapuwali <... May 10 2005, 08:20 PM Maltese Falcon Mike, use a Bosch bypass valve (late 930 style) - ... May 10 2005, 08:39 PM Mueller May 10 2005, 10:05 PM
Brett W The Bosch unit is junk. Pick up a DSM unit on Eba... May 10 2005, 10:46 PM |
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