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s5uewf s5uewf is offline
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Join Date: Aug 2004
Location: Maryland
Posts: 737
On steady cruise other threads here have suggested we can run a little more lean. I am running about 13.8 idle, up to as lean as 15.5 cruise at low loads, lowering AFR to 13.2 just under the point where boost comes on, 13 at boost threshold, and then dropping quickly and getting richer down to 12.2 afr under full boost.

Adjusting AFR may be worth considering, if you have the ability to do this.

Every setup is different, though, so experiment to find what is safe for your engine.

1988 930 coupe - Silver Metallic
3.3L w/GT35R, B&B Headers, RarlyL8 muffler, TurboKraft IC, Tial WG, tecGT based phased sequential EFI & ignition, Wevo shifter/coupler, ...
Old 07-16-2017, 05:54 AM
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