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911nut 911nut is offline
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Join Date: May 2001
Location: Michigan
Posts: 2,511
Originally Posted by NathanUK View Post
Venting the BOV to atmosphere is not recommended as it upsets the metering flap of the CIS.

The only reason I can think that the metering flap might get upset is that it will feel neglected
When the air flow across the plate goes to 0, it shuts the fuel off. End of story. It will do that if the bov is shoving air into the intake manifold behind the plate or dumping air to atmosphere because everything is occurring downstream of the plate.
Paul B.
'91 964 Turbo
Port matched, SC cams, K27/K29 turbo, Roush Performance custom headers w/Tial MV-S dual wastegates, Rarlyl8 muffler, LWFW, GT2 clutch & PP, BL wur, factory RS shifter, RS mounts, FVD timing mod, Big Reds, - 210 lb
Old 10-11-2008, 05:57 PM
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