How does a bov work?
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How does a bov work?
Ive seen peaple put bov on prochargers because they have a blow through maf. but how does a bov work? is it a spring inside? what tells it to let off the pressure, do you just change the springs for the psi? do prochargers have a bypass valve normally? thanks im kinda confused and just want to get it straight.
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RE: How does a bov work?
Prochargers should have a By-Pass valve not a BOV.
A BOV works off of vaccum. When the Throttle body is open, it creates a vaccum, thus allowing the BOV to stay closed. Once the throttle body closes the vaccum goes away and the extra pressure in the intake builds up and pushes the BOV open thus it releases the air. You don't have to upgrade springs when you have different PSI. Your thinking of a wastegate which regulates how much boost is allowed.
A BOV works off of vaccum. When the Throttle body is open, it creates a vaccum, thus allowing the BOV to stay closed. Once the throttle body closes the vaccum goes away and the extra pressure in the intake builds up and pushes the BOV open thus it releases the air. You don't have to upgrade springs when you have different PSI. Your thinking of a wastegate which regulates how much boost is allowed.
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RE: How does a bov work?
ORIGINAL: FoxRod
Prochargers should have a By-Pass valve not a BOV.
A BOV works off of vaccum. When the Throttle body is open, it creates a vaccum, thus allowing the BOV to stay closed. Once the throttle body closes the vaccum goes away and the extra pressure in the intake builds up and pushes the BOV open thus it releases the air. You don't have to upgrade springs when you have different PSI. Your thinking of a wastegate which regulates how much boost is allowed.
Prochargers should have a By-Pass valve not a BOV.
A BOV works off of vaccum. When the Throttle body is open, it creates a vaccum, thus allowing the BOV to stay closed. Once the throttle body closes the vaccum goes away and the extra pressure in the intake builds up and pushes the BOV open thus it releases the air. You don't have to upgrade springs when you have different PSI. Your thinking of a wastegate which regulates how much boost is allowed.
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RE: How does a bov work?
It all depends on where the MAF is in conjunction with the BOV. See on my Turbo I release to atmosphere but the BOV comes before the MAF. The only problem I have is that I run a little rich. But so be it. Life of a turbo'd car.
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RE: How does a bov work?
ORIGINAL: FoxRod
It all depends on where the MAF is in conjunction with the BOV. See on my Turbo I release to atmosphere but the BOV comes before the MAF. The only problem I have is that I run a little rich. But so be it. Life of a turbo'd car.
It all depends on where the MAF is in conjunction with the BOV. See on my Turbo I release to atmosphere but the BOV comes before the MAF. The only problem I have is that I run a little rich. But so be it. Life of a turbo'd car.
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RE: How does a bov work?
You do. But releasing to atmosphere will usually make your car run a little rich no matter what. But then again I guess it depends on how far they are from each other. Like my BOV is about 9 inches of piping away from the MAF. So that might be a cause too.
And someone brought it up to my attention that in my first description I wrote it backwards.
^ is more like how it works. Sorry for the mix up.
And someone brought it up to my attention that in my first description I wrote it backwards.
Annonymous
the bypass valve is opened by vacuum from a vacuum line straight off the manifold, so when the trottle closes, the vacuum (other wise boost at throtle) opens the valve to dump the built up boost upstream of the throtle body.
the bypass valve is opened by vacuum from a vacuum line straight off the manifold, so when the trottle closes, the vacuum (other wise boost at throtle) opens the valve to dump the built up boost upstream of the throtle body.
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