Dodge Challenger Forum banner

1 - 7 of 7 Posts

·
Registered
Joined
·
12 Posts
Discussion Starter #1
getting ready to do some datalogging and re-tuning. what should my AFR
range be? 2009 5.7 auto, see signature for mods. dont wanna blow nuthin up.....lol
 

·
Banned
Joined
·
4,698 Posts
Without an aftermarket AFR sensor, you'll be reading command AFR off the Predator. That's not your actual AFR.

HemiSam
 

·
Registered
Joined
·
12 Posts
Discussion Starter #5
ah, so with a laptop connected reading live afr isnt really gonna tell me anything huh....im not looking to lean it out, just wanna make sure its not too lean already. which from what i gather the mods i have prolly wont affect it enough to matter?
 

·
Banned
Joined
·
7,566 Posts
ah, so with a laptop connected reading live afr isnt really gonna tell me anything huh....im not looking to lean it out, just wanna make sure its not too lean already. which from what i gather the mods i have prolly wont affect it enough to matter?
No those mods won't matter enough. I thought you had a wideband installed. The CMD AFR is just what the computer tells the injectors to spray, not what the actual AFR is.

I did a Magnaflow cat back and Mopar CAI on mine and did before and after dynos with AFR and it barely changed at all.
 
1 - 7 of 7 Posts
Top