OK- silly question from someone who doesn't know a thing about flow bench measurements. If someone were to assemble a complete motor and hook up a drive motor with enough umph to turn the crankshaft, could actual flow in the test engine be simulated accurately by turning the it at various RPM?

Of course, there would be some differences between the test setup and reality, but seems it would be closer than a flow bench. The trick would be how to measure pulsed flow vs. the continuous flow on a bench.