Lambda Value

[Gareth Jones]

Hi,

I'm new to this game and I'm aiming to start small with a mixture meter,
driven by an O2 sensor. I have a lot of information on lambda sensor output
values, particularly voltage against lambda value. I know that lambda 1.0 is
equivalent to 14.7:1 air/fuel ratio. What I really need to know is what
lambda values relate to other air/fuel ratios, particularly in the area of
12.5:1 - 13:1.

Does anybody have the answers, or can anybody point me in the direction of
some relevant web resources?

TIA

Gareth Jones