00:00 Intro 00:35 Motorcycle and car applications and firing intervals 05:00 Acceleration, Velocity and Force 07:58 Primary balance and vibrations explained 12:22 180° and 360° twins primary balance ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both into a single ...

Today, we explore the unique square four engine configuration. This design features four pistons arranged in a compact square ...

The topic was vibration—the unseen forces going to town inside any engine spinning deep into the rpm stratosphere, and the devices designed to keep those forces in check. First, it’s a damper ...