There is also no need for a minimum of two valves (intake and exhaust) per cylinder as seen in a piston engine. Instead, fuel enters via intake ports that don't need to open and close. In a Wankel ...

Engine modifications take many forms, and you may have heard some enthusiasts use the term "camming." Is camming a car illegal, and what does it do?

Cylinder deactivation temporarily disables select cylinders in low-demand driving scenarios to save you some fuel. This ...

The positive crankcase ventilation valve releases exhaust gas and unburned fuel from the engine block into the intake manifold. All engines allow some exhaust gases, unburned fuel and oil to ...