Although correct, it's still a bit vague, as the charge itself is a compressible gas which expands to fill the container.
Indeed. Text book definition of VE glosses over a myriad of variables in play durning the intake stroke. But fill-rate versus swept volume remains a critical object of every tuner's affections. After all there is no replacement for displacement - and shame on the tuner for wasting any of the displacement at hand (by not filling it to the fullest possible extent).
To your point on the compressible nature of the intake charge - this discussion about realizing VE above 100% over at
Physics Forums seems apropos. In this case a velocity stack is providing the compression of the intake charge which then proceeds to 'over-fill' the cylinder.
regards,
stock49
