More silly ideas

[Padgett 0sirius]

When you consider what the engine is doing, MAP makes a lot of sense since
what matters is the cylinder filling pressure which is maximum when MAP is
max. Secondly referncing to zero makes sense since the atmospheric pressure
is liable to vary all over the MAP and you do not want the same WOT setting
in Denver as in Miami. The zero reference point OTOH is the same no matter
where you are. Besides the engine does not care what the outside pressure
is, just what is in the manifold.
      	A. Padgett Peterson, P.E. Cybernetic Psychophysicist
 Anti-Virus, Cryptographics, & Antique Radio Researcher
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