Just read a write up on the new Northstar 4.4 supercharged V-8 in HotRod magazine. It has variable valve timeing (VVT) and piston oilers which spray a mist of oil to the underside of the piston. This engine is a techno wonder. It should be included in the great engines of today. Does the VVT use a separate pump? The article states that it uses a separate oil circuit. Also do the "piston oilers" spray sequentially or are they spraying continuously? Anyone have any other input into this engine? Also, what other wonders of engine design/alternative designs are Cadillac (and GM in general) working on?