And what is the basis for assigning numbers to a generic chart, i.e. Is there a
reference cited that adds validity to doing that? Maybe the scale is really 50%
to 100%. And if so, then the change in torque from an AFR of 12.6 to 14.7 is
only 4%. Has a scale been assigned to fit one's desired result?
"In the areas of interest - near the maximum power point and the minimum fuel
consumption point - those curves are relatively flat. Even if the system can be
adjusted to deliver the perfect mixture (just at the point of maximum power),
the gain promises to be pretty small. There are no huge amounts of horsepower
to be unlocked there."
"Bosch Fuel Injection & Engine Management", Charles O. Probst, Chapter 7, pg 7,
ISBN D-8376-0300-5