Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

What RPM does your BOV open?

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Old 11-25-2002, 01:19 AM
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What RPM does your BOV open?

those with BOV's. Just curious b/c i'm afraid mine was set too tight. I loosened the spring so it opens between regular low RPM (2,000+) shifts. any tighter and the SC makes a hidious low moan "phum" as stated in another thread from backpressure in the charge pipe. the only downside with the loose setting is the car stalls easier but a quick blip of the throttle helps and it's better than damaged SC bearings. Until I find a way to relocate the MAF.
Any info is appreciated.
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Old 11-25-2002, 05:52 AM
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Re: What RPM does your BOV open?

Originally posted by 20thdriven
those with BOV's. Just curious b/c i'm afraid mine was set too tight. I loosened the spring so it opens between regular low RPM (2,000+) shifts. any tighter and the SC makes a hidious low moan "phum" as stated in another thread from backpressure in the charge pipe. the only downside with the loose setting is the car stalls easier but a quick blip of the throttle helps and it's better than damaged SC bearings. Until I find a way to relocate the MAF.
Any info is appreciated.
Mine is open at idle and stays open till I hit wide open throttle.
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Old 11-25-2002, 09:07 AM
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Wow... that's pretty loose!

I have mine set so that when I'm under load ~30% Throttle, the BOV is closed to help with acceleration.
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