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911nut 911nut is offline
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Join Date: May 2001
Location: Michigan
Posts: 2,511
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.
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, 04:49 AM
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