Anyone know how many lbs/min of air an unmodified head with factory cam will flow at a given pressure? The reason I ask is; if a turbo is advertised to flow 80 lbs/min, but our engine requires a pressure of 60 psi to swallow that 80 lbs/min, that high of a PR has forced the charger off it's map and is incredibly inefficient.
Anyone have this sort of airflow info?
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