Hey all just a couple tuning questions: First whats a safe afr for these new trucks just a cat-back and a airraid.

Second efi live have trans tuning yet??

Third any good tuners in indiana

 

Safe Afr is normally always 12.5 for WOT.

 

what part of IN? Mike Norris is in Plainfield (southwest) Indy

 

I'm not qualified to say for fact. But stock is 12.5. I think everyone considers that safe. Many tuners, especially the C7 guys, are saying 12.9 - 13.1 is optimal. I've from 11.9 - 13.1 and I did not notice much if any performance gain going leaner. I saw a slight amount of KR momentarily at 13.1 in the 4,000 rpm range but none above that.

 

I got a 12.8 AFR.

 

And yes efi live came out with trans software about 2-3 mth ago. It you have problems with it get a hold of Cindi with efi live.