Question regarding Air Fuel Ratios

mazdasp33d

Member
:
Mazdaspeed 3
Okay let me start out with the mods I have concerning power and what not.

Cp-e nano
Full Corksport TBE

Right now im running a stage 2 + sf 93 103 map from cobb. I have a dash hawk set to monitor air fuel, rpm, and boost as of now. But what should my numbers for a/f during idle, and wot? What ranges should I look for and when should I be concerned? Is there a range I should not be in?

edit: soon ill have the cp-e inlet and a new bpv with a tmic. and im guessing I should be in the same range of a/f with these added mods? thanks
 
Idle and low-load your afr s/b right around stoich which is 14.7.
WOT on the stock tune you'll go as rich as low 10's/high 9's.
In-gear coasting you'll go to 29.

All these are normal.
 

New Threads and Articles

Back