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: What is considered lean, what is considered rich? Maggie Vette 02-02-2010, 08:19 AM I'm trying to figure out how to read these figures from my new air/fuel meter. On a LS2 that is supercharged, what would be considered running rich and how about lean? # wise? Thanks guys. Mike@Diablosport 02-02-2010, 12:24 PM I'm trying to figure out how to read these figures from my new air/fuel meter. On a LS2 that is supercharged, what would be considered running rich and how about lean? # wise? Thanks guys.On a supercharged application, you would expect to see high 11:1 range at WOT (11.5-11.9), unless it was tuned in person, then maybe low 12s (not for me personally). Anything above 12.5:1 at WOT would be too lean in my book. At cruise and idle, you should see right around 14.7:1. Maggie Vette 02-05-2010, 01:41 PM On a supercharged application, you would expect to see high 11:1 range at WOT (11.5-11.9), unless it was tuned in person, then maybe low 12s (not for me personally). Anything above 12.5:1 at WOT would be too lean in my book. At cruise and idle, you should see right around 14.7:1. Thanks Diablo! denniner 03-15-2010, 09:48 PM Good air fuel ratio info guys. Thanks for the tip. Keep it up. :) | |