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911nut 911nut is offline
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Join Date: May 2001
Location: Michigan
Posts: 2,511
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You set cold cp, warm, cp, then boost cp, double back and check everything.

I eliminated the narrowband O2 sensor when I installed headers. The emission system is very primitive and I felt that my car ran better in open loop.

If you have the O2 sensor connected it will set you to 14.7/1 at cruise anyway.
Otherwise, if you are using longer duration cams then stock and you ditch the O2 sensor, a little richer is good but I mean 14.0/1.

Sounds like you have a 5 speed transmission, correct? If so I'd recommend that you do your data gathering pull in 3rd gear so you actually get some load on the engine.
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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 07-24-2014, 03:49 AM
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