Bypass valve question
Thread Starter
Burning Brakes
Joined: Aug 2006
Posts: 901
Likes: 1
From: Oxford PA
Bypass valve question
At what point should I upgrade the basic procharger bypass valve. I assume the bypass I have now works fine. Would I gain any kind of a advantage with the high end valves other than the sound.
I have ran some searches and seem to be finding info on the sound factors of the valves. Thanks.
D1 procharger at about 9psi
I have ran some searches and seem to be finding info on the sound factors of the valves. Thanks.
D1 procharger at about 9psi
Melting Slicks
Joined: Apr 2005
Posts: 3,418
Likes: 1
From: Chicagoland Area IL
Although most replace BOV for sound purposes... an upgrade is warranted when you start pushing some serious flow i.e. pulley down for serious boost or larger blower such F1x in your case.
The BOV vents boost when vacuum is present or throttle is partially cracked. This prevents compressor from surging a type of aerodynamic stall that can be very violent and destructive over extended time.
As long as BOV is not restrictive or can sufficiently vent excess air then it is fine.
Most upgrade when they go to forged block and push boost above say 14 psi (example only).
Mike
The BOV vents boost when vacuum is present or throttle is partially cracked. This prevents compressor from surging a type of aerodynamic stall that can be very violent and destructive over extended time.
As long as BOV is not restrictive or can sufficiently vent excess air then it is fine.
Most upgrade when they go to forged block and push boost above say 14 psi (example only).
Mike
Supporting Vendor
Joined: Jul 2003
Posts: 6,486
Likes: 2
From: http://www.mphparts.com 800-364-1975
One way you'll know it's time to upgrade is when you start popping intake tubing repeatedly That usually means that there's too much flow going through the blower at the time the throttle blade closes to successfully vent it all through the valve.
