View Single Post
Old 06-30-2015, 01:08 AM   #20
D_Thissen
Senior Member
 
D_Thissen's Avatar
 
Join Date: Jan 2014
Drives: '13 Argento FR-S (Sold)
Location: Ontario
Posts: 2,126
Thanks: 3,209
Thanked 1,439 Times in 855 Posts
Mentioned: 19 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by azynneo View Post
So I went back to stock from JDL and as I accelerate my AFR normally reads 14.5 on average and doesn't move much while on my JDL. Now I'm back on stock and as I accelerate it drops down to 11.1 and sits there until I shift back up. Is this normal since there is more air restriction?
Quote:
Originally Posted by azynneo View Post
UEL Headers, Perrin cbe, frontpipe is catted, jdl overpipe
Quote:
Originally Posted by azynneo View Post
When I'm cruising now it stays around 14-15. When I go WOT it drops to 11-12. I'm using stock intake with a drop-in filter.

As for the JDL's I would go WOT and I'd hit maybe 13.8-14 there would be a very small chance I'd hit anything lower than that.

If this is normal it'd be nice, I was just afraid of my crap blowing due to low afr.
Quote:
Originally Posted by azynneo View Post
Running 14 AFR while cruising is bad? I mean I go to 11-12 WOT.
Usually at idle your AFR is around 14. As your accelerate in WOT they should go into the 11-12 range, or even into the 10-11 range if you're boosted. This means the air fuel ratio is becoming richer. So what exactly is happening? You shouldn't run a supercharged tune when your not supercharged.

EDIT. Are you boosted or na?
__________________
D_Thissen is offline   Reply With Quote