What should A/F be at idle and cruising
#4
TECH Junkie
iTrader: (5)
14.7 to be exact
Different from combo to combo some cams wants richer a/f.
#6
10 Second Club
iTrader: (3)
A/F should be irrelevant. Part throttle and cruise and idle should be Lambda 1. A/F is only a conversion. That means Lambda 1 can be 14.68 for gas, 14.1 for E10, 15 for C12, etc.....guess what, they are all Lambda 1.
or as RHS said, Stoich.
Dont measure AFR. Every wideband has a different conversion for Lambda 1 to AFR. NGK AFX is 14.57, no matter the fuel you are running, that just means Lambda 1. Othe widebands convert Lambda 1 to 14.7, etc.
AFR means nothing unless you have tested your fuel and know exactly what it is and what the stoich AFR is. Lambda 1 is stoich no matter what.
or as RHS said, Stoich.
Dont measure AFR. Every wideband has a different conversion for Lambda 1 to AFR. NGK AFX is 14.57, no matter the fuel you are running, that just means Lambda 1. Othe widebands convert Lambda 1 to 14.7, etc.
AFR means nothing unless you have tested your fuel and know exactly what it is and what the stoich AFR is. Lambda 1 is stoich no matter what.
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#8
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Keep in mind that 14.7 (if you're running E10) will be a little lean....might be beneficial for MPGs, if your car likes it. Still set PE to appropriate % while considering stoich value of the fuel being used.