Does anyone know how much air(in cubic feet per minute)is drawn through the intake into the engine at various points, from idle to wide open throttle? If a constant increase in CFM were to be made available, would engine performance benefit, or does the increase have to be variable with engine speed? In other words, say for instance that a stock engine draws x amount of air through the intake at idle, where x is the max that can be drawn at idle speed, based on filter and related intake plumbing restrictions. Then let's say that the same engine draws y amount of air at wide open throttle. If we introduce z, which is an increase in air available, constant from x through y, where the engine is now running x+z through y+z, do we see an increase in performance attributed to z, all other things being equal? Is this how a turbo or supercharger works? Or is z variable based on need/engine speed in a turbo/supercharger setup? How can it be determined as to what velocity in air intake is needed to provide a given increase in power? If x above provides one horsepower
and y provides ten horsepower, can it be shown conclusively that adding z will increase that HP equally from x through to y,
say by some percentage of HP? What other variables are inherent in a turbo/supercharger setup that result in the increased performance of the engine?
Thanks,Keith