Bypass valve: Difference between revisions
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Valve which relieves charge pressure by venting air back into the ambient pressure intake tract. |
Valve which relieves charge pressure by venting air back into the ambient pressure intake tract. |
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Prevents [[turbo surge]] but preserves [[LTFT]]s. |
Prevents [[turbo surge]] but preserves [[LTFT]]s, since measured air will still eventually enter the combustion chamber. |
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All street cars that use |
All street cars that use [[MAF]]s upstream of a charge pressure relief system should use BPVs rather than [[blow off valve]]s. |
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Variants: |
Variants: |
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Revision as of 17:33, 17 August 2006
a.k.a. "BPV"
Valve which relieves charge pressure by venting air back into the ambient pressure intake tract.
Prevents turbo surge but preserves LTFTs, since measured air will still eventually enter the combustion chamber.
All street cars that use MAFs upstream of a charge pressure relief system should use BPVs rather than blow off valves.
Variants:
- 710A - original? (OEM for 2001.5?)
- 710N - updated (OEM for which engine?)
- 710P - updated again (OEM for RS6?)