TwinTurbo.NET: Nissan 300ZX forum - They are essentially the same thing:
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Subject They are essentially the same thing:
     
Posted by therinL on March 05, 2003 at 10:30 PM
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In Reply To Recirc Valves or BOV's ???? posted by Smitty300z on March 05, 2003 at 10:13 PM
     
Message They both vent air to alleviate compressor surge.
Yoru car already has recircs. which means that it takes the already metered air and allows it to recirculated through your intake system instead of throw it out like BOVs.

BOVs normally let that air vent to atmosphere. It sounds nice and cool(if you get a non-ricey one), but can hurt your gas mileage.

Unless your running high boost levels you dont need to worry about replacing them and its IMO a waste of money if unless you are producing alot of boost.

Stay stock

Later
Josh

     
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