So i finally got to see what my CMD AFR was last night on my stage 2 since i installed my interceptors... it got down to as low as 10.8 at wot thats pretty rich so i went ahead and disconnected my meth injection until i get tuned for it cuz some people said i had black smoke pourin at at wot as well. Does this sound about right for a S2 AFR?

 

Yes, that is what S2 is set to command.

Kevin

 

cool thanks so is the blake smoke just extra fuel or what?

 

ive noticed it even happens to stock balts as well, i went to a meet with a couple other balts and i was behind someone who just had an intake and they puffed a little black smoke nothing like a diesel just a little puff.

 

Remember, commanded AFR is not the actual AFR.

 

so when i go to get it tuned next month with my 60's and a 2.85 i should aim for something like an 11.7 at wot right?

 

ya for stage 2 i was anywhere from 9.8 to 10.8 .........sucky ass gm tune

 

our cars seem to like the actual afr in the mid 11s

 

Holy **** 10.8 at WOT is what GM wanted... No wonder nobody get 240 with stage 2. 240 was probably with ~11.7

 

Ive heard 11.5-11.8 is a good AFR. But keep in mind that each car is different, and weather effects.

 

when i went to the dyno the graph show straight 10.0 afr i think im lower since that thing dint read lower
crappy stage 2 tune

 

yep i wont be said to get rid of it...