Associated Studies: Supporting Science: Engine components

Grey iron	Grey iron is a cast iron that contains carbon in the form of graphite, plus silicon, manganese and phosphorus.
Turbulence	Turbulence refers to the swirling motion of a liquid or a gas.
Valve-timing diagram	The time valves in a 4-stroke engine cycle actually open and close can be measured by angles. These angles can be easily read using a valve-timing diagram.
Compression ratio	An engine’s compression ratio can be a guide to the power it can generate, the higher the engine's compression ratio and the more powerful the engine.

Topic	Summary