Thread: New type of BOV
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copbait73 copbait73 is offline
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Originally Posted by beepbeep View Post
Hehe...a guy I know happend to have a old 935 in his shed (with correct flat fan and water intercoolers). I checked out the motor and it actually had a sort of BOV. It had pop-offs actuated by throttle. When you lift off throttle, those pop-offs open

Had pictures of it somewhere...
Yes, that's the valving I had in mind when I suggested the option of a mechanical linkage to the throttle in my #39 posting. This gives a more positive, predictable, progressive control of transitioning the manifold back to non boosted naturally aspirated condition. I try to avoid comparing it's function to that of a modern pressure activated intake recirculation valve (BOV). The turbo could still surge with these because they were often placed between the CAC and throttle, vs common today turbo and CAC.
Old 01-31-2008, 05:03 PM
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