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AFR for stock 93 SS

Posted: Tue Oct 03, 2006 1:13 am
by vica153
What is the AFR on a 93 SS? Oviousvly its going to vary, but since people always say subarus run rich I was wondering about what the afr is.

Posted: Tue Oct 10, 2006 8:29 pm
by rallysam
AFR is all over the place. Here are some typicals for me:
Cruising: stoich
WOT: 11 to 12 or so

Posted: Fri Oct 13, 2006 10:38 am
by dzx
That seems rich at 11.

Posted: Fri Oct 13, 2006 12:11 pm
by rallysam
Well, that's what I get with the stock fuel system and higher-than-stock boost. Then again, with a car this old, the only thing you know for sure is that something IS broken... so I can't promise that 11 is normal.

These are all graphs of AFR (blue) over time as I did a bunch of different types of pull. Note that I go on and off throttle - Yellow is throttle position. When yellow goes up to 5, throttle is closed and fuel is cut. When yellow goes down to 0, that's a WOT pull.

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Posted: Fri Oct 13, 2006 8:58 pm
by dzx
sorry, i was drunk and read that as 11 at cruising not wot.

Posted: Fri Oct 13, 2006 9:29 pm
by Subtle
You're not drinking and posting at the same time :shock:

Posted: Sat Oct 14, 2006 2:07 am
by dzx
I try to stay away from the internet and phones when drinking but sometimes I don't quite follow through...