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PCA Member since 1988
Join Date: Feb 2018
Location: SW Washington State
Posts: 4,225
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Rutager: Be careful what you ask for...
A number of us have AFR gauges on our CIS cars. I do, Icarp does, OldH2S does, etc. In my experience, and those with whom I've compared notes, the AFR is all over the place. You would think that the WUR should make the AFR go lean under cruising and off throttle conditions, and go rich when you put your foot down, but it usually seems to do the opposite! This has led several to install manual pressure valves to replace the WUR. I'm considering the same, except that I understand there is an electronic version soon to be available that will do what the WUR is supposed to do, but more reliably and adjustably.
Why are you asking?
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners.
Cars are for driving. If you want art, get something you can hang on the wall!
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