[s-cars] blow off valve orientation... was Re: Fluttering Soundfrom Turbo?
djdawson2 at aol.com
Wed Aug 10 16:16:08 EDT 2005
FWIW, if you install a Bosch BPV "backwards" (boost entering the bottom of the valve), it will last you 2 or 3 high boost runs, and then blow the diaphragm. The diaphragm on the Bosch valve is "unprotected" in a small area near the exit (side) port. High boost from the bottom of the valve results in blowing the diaphragm through the "unprotected" area like a ballon. Doesn't take long before it's shot.
From: Bill Clancy <clancybill at yahoo.com>
To: James Murray (QA/EMC) <james.murray at ericsson.com>; djdawson2 at aol.com; fastscirocco_2000 at yahoo.com; da5150_2000 at yahoo.com; s-car-list at audifans.com
Sent: Wed, 10 Aug 2005 10:28:20 -0700
Subject: Re: [s-cars] blow off valve orientation... was Re: Fluttering Soundfrom Turbo?
I guess I was mixing up the words a bit...oops. It looks like I have the
Forge "Race" diverter valve with the diaphragm, not the Forge 007 valve with
the piston. This race valve with the diaphragm is the one that I was
describing (and accidentally interchanging the words piston and
diaphragm...my mistake). I don't know how the 007 valve is supposed to
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