I'm still glad you're working on it though. I've been comparing the original cobb sheet with your quad rev1 sheet, trying to understand more.
The linear calculation is a simple way to calculate aircharge, right, using slope and offset (MAP, air density for reference)?
I don't understand quadratic math being used to calculate aircharge, from what I've read, all quadratic formulas result in a parabola, is Ford using a portion of the calculated points in the parabola so you end up with a "line" whose slope changes from aggressive to less aggressive?