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911nut 911nut is offline
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Join Date: May 2001
Location: Michigan
Posts: 2,513
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Mine's connected and I have mild popping in the muffler. When it was disconnected and venting to atmosphere I had loud popping.
My valve had become sluggish, letting the revs hang forever and then dropping slowly. A mechanic friend told me that this could be remedied by collapsing the vacuum side of the "can" 1-2 mm. It worked and I now have mine hooked up to the intake once again.
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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 08-20-2011, 04:04 AM
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