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Old 03-29-2018, 11:00 PM   #10
Nabush
 
Drives: 2017 C7 GS M7 / 2017 Camaro SS 1LE
Join Date: Dec 2016
Location: Idaho
Posts: 198
Quote:
Originally Posted by KingLT1 View Post
I spend quite a bit of time reading literature on HPtuners forum. A few members over there have stated that 12.8 is a safe AFR for a naturally aspirated DI gen 5 engine running 93 octane. 12.5 is leaving power or the table, 12.8 is safe, 13.0 is ok, but 13.1-13.2 is getting a bit lean.
Yes but AFR doesn't mean anything now since all fuel are E5-E10....
More and More tuners say " work with Lambda" instead...

Should aim for 0.85-0.88 Lambda...
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