One other thing. F1 is four stroke, we are two stroke. So what? you might think. For whatever reason, long strokes are usually better in two strokes while four strokes like short. I suspect a lot of the reason for this has nothing to do with stroke physics and more to do with valve area. A four stroke with overhead valves is limited in how big the valves can be by the size of the cylinder. Go to a larger bore and shorter stroke for the same displacement and you have already improved breathing by reducing the shrouding effect on the valves. Make the valves a bit bigger as well (or increase the number of valves) and you have improved breathing even more. This isn't really an issue with two strokes since a smaller bore will mean slightly narrower ports but the longer stroke also makes them taller so it mostly evens out.