Well, my question got answered on page one.
Liking physics and chemistry has done me well.
Wasn't trying to start an argument/pissing match/ whatever over something I already understood.
I just wanted to make sure I was applying my knowledge to tuning needs correctly.
You started a discussion. One where everyone learns from each other, hopefully.
Agreed, it's all about the mass of air squeezed into the 2.3L per 2x revolution, the vol will always be 2.3L, at diff P and T.
It's all that simple. How you cram all that through the 2.3 is where it gets difficult.