For those in the know... Lambda is good under WOT .85-.95
04-08-2005, 09:32 AM
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Lambda:
0.95 = 13.97 AFR (lean for WOT)
0.85 = 12.50 AFR (good for WOT)
0.75 = 11.03 AFR (rich for WOT)
FWIW, I'd rather be in the 0.75 to 0.85 range than the 0.85 to 0.95 range.
Note that those are wideband lambda values... NOT narrowband O2 voltages.
-Dave Pramanik
0.85 = 12.50 AFR (good for WOT)
0.75 = 11.03 AFR (rich for WOT)
FWIW, I'd rather be in the 0.75 to 0.85 range than the 0.85 to 0.95 range.
Note that those are wideband lambda values... NOT narrowband O2 voltages.
-Dave Pramanik
04-08-2005, 10:02 AM
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Nope. Lemminwinks, again...
my 02's are ok on CYL 3 and 4. on CYL 1 they hit 20 @6360 and 25@ 6700. CYL 2 hits 23@4840, 27@5440, 21@5920, 28@6360, 29@6760. I've been talking with Devious and he said that it's fine w/ 2 b/c the sensor is on that CYL. I think everything seems fine. The car pulls hard and strong. Once the FMIC goes on I'll take a look again and wait for those to drop. Until then I'm not going to beat on the car, but I'm not going to be grandma shifitng...
04-08-2005, 10:06 AM
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those are knock voltages...I was asking abotu 02's
that graph is hard to converty 02 to lamba very accurately imo. I always get very lean numbers on the dyno but I don't trust the sniffer. Next time I want a real widebank 02 if possible.
I'm missing something. I'm hoping to see some timing improvements when I get my FMIC.
I'm missing something. I'm hoping to see some timing improvements when I get my FMIC.
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04-08-2005, 11:04 AM
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01 read Lambda, no 02 voltages. They are using a wideband bosch sensor.
Dunno how accurate it is. I heard that it is limited in accuracy only becuase of the limitations of 3-4 samples / sec.