Blow off valve vs. pop off valve

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May 11, 2003 | 05:26 PM

dgflwrx

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Blow off valve vs. pop off valve

I was wondering if anyone has ever heard of a pop off valve? I think it goes before the manifold. Similar to a BOV but on the opposite side. not sure? I am new guy to the WRX just trying to figure out some of this stuff.
Thanks

May 12, 2003 | 07:21 AM

DeliciouSpeed

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From: Somewhere in the Eastbay

a pop off valve is an emergency valve, to protect the motor. When boost exceeds a certain point, the valve opens until it drops below the pressure required to open it.

You know what a bov does.

May 12, 2003 | 02:21 PM

dgflwrx

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thanks. I was just curious i saw one on a website somewhere and was just wondering what it was. I know some rx-7s use them just curious i should have titled the post what is a POV.