It’s exactly this accepted fact that I’m trying to understand: what happens when increased quantities of air/fuel mixture are pushed into intake manifold, so that it increases the engine speed.
And I think that the ram effect doesn’t help to explain it, since the pure and simple engine speed...
So the bang has to be bigger.
Let's imagine one cylinder: for each crankshaft speed, when the piston is in bottom dead center, the volume of air/fuel mixture is the same, but not the quantity of the mixture. Right?