TwinTurbo.NET: Nissan 300ZX forum - where does the 11:1 A/F ratio rule of thumb come from?
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Subject where does the 11:1 A/F ratio rule of thumb come from?
     
Posted by ZEngineer on November 21, 2007 at 1:56 PM
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Message I had my car tuned to 11:1 A/F as recommended, knowing that this is a considerably richer mixture than the theoretical 14:1 stocheometric ratio.

From the frequent backfiring I get and from the carbon deposits on my rear bumper, I can see that the car's running rich.

Using 94 Octane at 19psi, I've never heard her ping. So the question is: what's to tell me that my ideal ratio isn't 12:1, or 13:1?

_________________________________________________________________________________

Im n0t Sarcastic (Kenny): not to over do it, but you're certainly the source of high-class Z mods
ZEngineer24: what do you mean by that?
Im n0t Sarcastic: I just mean, your Z is one I really admire


"The Z is the cause and the solution to all my problems" -- Me

"If your car was my car, I'd think it's broken"

     
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