When the function of a camshaft(s) is explained to non-mechanically-inclined types, it's sometimes referred to as the "brain" of an engine. Most engines will live their entire lives with the stock cam ...

Last month's "How It Works" story gave you the basics of the four-stroke cycle, describing the motion of the intake and exhaust valves in relation to the piston moving up and down in the cylinder.

Even the most seasoned engine builders usually feel uncomfortable when conversation drifts to the intricacies of camshaft design. Surprisingly, the common termsduration,lobe separation angle, and ...