O2 voltages

Byron Smith BSmith at vertexdallas.com
Tue Oct 3 15:10:25 GMT 2000


	So, production cars with wide band O2 still cycle about stoich for
the converter's sake?  Do they at least have a much tighter cycle?  Or are
other changes made that make cycling about stoich unnecessary?

	--Byron


> Nope,
> the 14.7 is for the EPA, Period.
> There is no reason to waste that much fuel at cruise, other then for those
> folks.
> Then they swing it way rich and lean to keep the converter at operating
> temp..
> Did a car at the PW that was happy as punch at 15.25-15.5:1  light cruise,
> and this was a big car and engine.
> I'll bet ya 50 cents I will get the GN to almost 16:1 in light cruise and
> still have a 12 sec car.
> Bruce
> 
> 
> 
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