[Diy_efi] What is stoichometric....really?

[Phil Lamovie]

Grant proposed...

> The point when all fuel is burned and all O2 is used up
> should be the most gas and emissions efficient way to go.

The real point of peak efficiency occurs at peak combustion temp.

Peak temps occur at a Lambda of 1.1 or so.

This is a 10 % savings on fuel plus a few extra % for the higher
temps.

Nearly all cars cruise the freeways at this A/F ratio and are
considered to be in "Lean Burn Mode" The catalytic converter
has very little work at these A/F ratio.

Phil


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