A/F Ratio

[GSTdOff]

Is there an ideal A/F ratio for the 4g63t?

 

[Mike 99GSX]

WOT? Cruising/idle? Pump gas? Race Gas? Level of mods?

 

[jfdid]

The engine ECU trys to hit the stoichiometric 14.7/1 ratio all the time.

 

[nine5raptor]

Originally posted by jfdid
The engine ECU trys to hit the stoichiometric 14.7/1 ratio all the time.

When in closed loop....

 

[Violater101]

As long as your not knocking, I think anywhere from around 11.4 to 12.0:1 for pumpgas. The leaner you go, the more power your going to make.

 

[Defiant]

Originally posted by GSTdOff
Is there an ideal A/F ratio for the 4g63t?

Eh. As above, 14. 7 is the goal for internal combustion, but the turbo and its hot air brings in heat issues, dealt with by adding more fuel. Water injection will get you some back, as does the intercooler.

I couldn't tell you what the turbo will like best, and the load alters it considerably. It's all just too dynamic.

 

[crankbender]

just a few words

"Fat is where its at!!!!"

forget those "lean is mean guys"