Randy, that was an excellent answer. I was looking at the same websites as you when you posted (no, really...!).

Some of these pages discuss the use of variable valve timing, which apparently helps overcome the lower torque of Atkinson cycle engines at low RPM vs. the torque of Otto cycle (i.e., normal 4-stroke) engines. Does the VVT regime in the ECU take the knock sensor signal as an input?

Bill
2007 Magnetic Gray TCH/Nav/Ash Leather
2002 Blue BMW K1200RS
2000 Champagne BMW K1200LT