OK let me ask one more question.
How does VVT work on a pushrod engine? Won't that work better on a OHC engine?
I think I can guess what Dual Cam Phasing is considering a CAM can be represented as an oscillator with a graph of a sin wave, and a phase shift is just a translation on the x-axis (time), which would be running at the same angular velocity just a little earlier or later in the cycle. I guess this means that the valves will potentially open at two different points of time versus the stroke, depending on which of the two possible phases is in effect. That's' just based on my understanding of math, not car knowledge. Or am I way off? Maybe it has something to do with cylinder de-activation?
