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Location:
Sydney
Registered:
July 2002
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Centrifugal supercharger BOV
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Wed, 09 April 2003 01:09
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OK, I know the principals behind putting a BOV on a turbo car as there is still boost going in when the throttle closes and ends up slamming against the closed throttle butterfly and with repeated use can damage it.
With a positive displacement supercharger (roots type, or one from a 4AGZE/1GGZE) there isn't as much of a need as there is no more boost because the amount of boost is directly proportional to revs.
What about a centrifugal supercharger? They have a design similar to a turbo, so I'm not sure if it would boost when the throttle is closed, as it would be run on bearings, not directly on the crank speed.
My question is:
Would an engine with a centrifugal supercharger benefit from having a BOV??
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