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This Expression is confusing !
Speed Density!
A way of measuring pressure..... Why are folks talking about "Speed" ...of what exactly?
A manifold pressure sensor measures the manifold pressure. Why is this method of measuring load not named "intake pressure signal" or someting a normal human being can relate to?
Speed... of what? Density of ..?
Speed is Engine Speed -- one axis of the Speed Density Fuel table -- Density (Manifold Pressure) being the other axis.
A similar term "Alpha N", refers to using Throttle Angle (Alpha) and Engine Rev/Min (N) as the axis of the fuel table.
I can think what's much simpler than engine speed and density (pressure with temperature reference).
"Intake manifold pressure referenced" would be the obious name.
Speed Density means nothing logical.
Alpha N is another questionable expression.
Why overcomplicate simple things?
