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911nut 911nut is offline
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Join Date: May 2001
Location: Michigan
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Originally Posted by sand_man View Post
I have a Tial 46mm on mine with a .80 bar spring in it. I have found that with some after market headers (B&B and OBX are the two that have been on my car), that their flow characteristics will often cause more boost.
It's called boost creep.
However, the .1 bar difference your seeing could easily be within the accuracy and resolution of your boost gage.
Real boost creep would be like if you were getting 1.2 bar with an .8 bar spring.
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 09-17-2007, 02:26 PM
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