I think i'm starting to get a grasp on what SYN_Bliss is saying, i will still have to re-read it with a clearer head tomorrow (major lack of sleep today) but there's some good analogies in there that make it simpler to understand.
On another note, what surprised me is that the thread dived right into boost and superchargers. Maybe it would be much easier to explore and/or explain the basic effect of "RPM reduction leads to manifold pressure increase" if we had started with something simpler: a non-supercharged engine (say, a Lycoming on a Cessna) and absolute units of measure for manifold pressure.
In any case, very interesting and informative thread, cheers to all for their input
