Patent ID: 7434452

Claim:
A method of calibrating an engine, this method comprising: (a) providing an engine having a plurality of combustion cylinders, and a valve train having individual components dedicated to each of said plurality of combustion cylinders (b) said individual components within said valve train having initial operative ratings; (c) identifying one or more anomalous cylinders, from said plurality of combustion cylinders, that operate at a level above or below a common baseline; (d) redesigning and installing individual components within said valve train, associated with said one or more anomalous cylinders, to provide said one or more anomalous cylinders with individual components having different operative ratings from said initial operative ratings, such that there be at least one intake valve, in at least one of the several combustion cylinders in said engine, with an operative rating different from the operative ratings of the remainder of the intake valves in said engine, so that said anomalous cylinders operate at or closer to said common baseline.