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REDEYE: Driving Observations. Air fuel ratios. Tranny shift -ability.

motorhead

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Ottawa
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Non-US
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Canada
Vehicle
2019 Challenger HC Widebody
#21
I remember you talking about COT when you lost the motor. I also remember when you said you set lambda at .83. It stuck in my head and I googled lambda and started to read about it. BUT I always thought gasoline stoich was 14.7 (which 14.7 x .83 = 12.20 A/F ratio) but maybe I was doing A/F ratio studies when fuel was all petrol and now it's 10% ethanol standard so stoich changed to 13.85? Or is that Dodges value of stoich.?
Thanks for the input Jay.
Tony.
Ethanol and other additives mess with the measurement. The ECM will trim the fuel back to where it needs to be by +/-25% variance if I remember right.
 




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