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Location: Sydney
Registered: June 2004
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another BOV question
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Fri, 02 July 2004 10:38
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im in SYD and have started to hear things about people getting fines for loud BOVs. anyone know anything bout this?
apparently they are like sound systems and are 'noise pollution'. i dont know anyone personally thats this has happened to, but a friend of a friend said it happened to him.
could this be true or do you guys recon the cops just had it in for him?
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Location: cambo
Registered: May 2002
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Re: another BOV question
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Fri, 02 July 2004 11:44

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an atmo venting BOV is a deffect so you can be fined for noise polution just like a pod air filter, or even fined by the EPA cause its more than just noise polution on an AFM engine.
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Location: Brisbane
Registered: May 2002
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Re: another BOV question
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Sat, 03 July 2004 13:52

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Atmo-venting BOV's have been a "defectable" offence for ages now. It's usually not enforced unless you happen to be doing dumb stuff at the time. This is yet another reason not to fit a big stupid wank-valve on your car.
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Location: Brisbane
Registered: April 2004
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Re: another BOV question
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Sat, 03 July 2004 22:50

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Those wank valves make a difference when u have a large turbo and your running big boost, the old plumb back just don't cut it. But on the other hand there is no need to have a bov which is designed to make a lot of noise.
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Location: sunny coast, qld
Registered: October 2002
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Re: another BOV question
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Sat, 03 July 2004 23:39

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I would have thought that all that matters was the diameter of the valve not where the air is going?
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Location: Brisbane
Registered: May 2002
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Re: another BOV question
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Sun, 04 July 2004 00:38

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Absolutely correct. You can have a big BOV if you really need it, but it doesn't need to vent to atmosphere and it doesn't need to make any noise.
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Location: Sydney
Registered: June 2004
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Re: another BOV question
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Sun, 04 July 2004 04:47

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if it doesnt need to vent to atmos then where does it vent to?
also i didnt know you could get QUIET BOVs
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Location: Brisbane
Registered: May 2002
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Re: another BOV question
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Sun, 04 July 2004 06:33
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It vents back into the inlet system, pre-turbo. This is how all factory BOV's work, and that's why they're quiet.
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