수리 사례

2026. 6. 30. 작업

증상

Why choose either recirculated or dump to atmo blow off valve?

처리 내용

Recirculating wastegates dump the exhaust that's bled by the gate into the exhaust to avoid toxic fumes and noise. Recirculating BOV's or bypass valves are typically installed by the factory to reduce noise, since many people that buy a turbocharged 2.0L Cadillac don't want the "pssst" or "pop-pop-pop" noise that a BOV generates when vented to atmosphere. Although, since the purpose of the BOV is to reduce pressure in the intake, I'm a little confused as to how venting back into the intake reduces pressure. :/