Quote:
|
Originally Posted by 90free400e
thats the thing. i have alot of air, and not enough fuel as my a/f ratio hit 14.7 : 1 most of the time and 14.9 at one point. I want to get it down to low 14's high 13's. I have removed my foglights and washers for direct ram air into the intake tubes.
|
14.7 is the stoichiometric air/fuel mixture your ECU is programmed to achieve.
Running high 13's will screw up your emissions ( primarily CO ), for sure.
The idea of finding a little extra " passing power " is accomplished with an A/F ratio of high 12's, which again, the ECU should already be giving you.
Increasing the rail pressure too high will also give you other problems, like poor idle, etc.
