While it does generally correspond to power, cc (cubic centimeter) is actually a measure of engine size. It refers to the displacement, that is, the amount of volume the piston(s) displaces as it travels from top to bottom of stroke. The larger an engine the more air and fuel it can consume, and theoretically the more power it will make.
Engine displacement is the volume swept by all the pistons inside the cylinders of an ICE in a single movement from top dead centre (TDC) to bottom dead centre (BDC). It is commonly specified in cubic centimeters (cc), liters (l). Motive power output of a combustion engine is directly proportional to the engine displacement. Engine displacement does not include the volume of the combustion chamber.
Engine displacement is determined from the BORE and STROKE of an engine's CYLINDERS. The bore is the diameter of the circular chambers cut into the cylinder block.
Examples: The 427 Chevy bore is 4.312 in, and the stroke is 3.65 in, therefore the displacement for this 8-cylinder engine is:
If the bore is 10 cm and the stroke is 5 cm with 4 cylinders, the calculation is:
Engine displacement is the volume swept by all the pistons inside the cylinders of an ICE in a single movement from top dead centre (TDC) to bottom dead centre (BDC). It is commonly specified in cubic centimeters (cc), liters (l). Motive power output of a combustion engine is directly proportional to the engine displacement. Engine displacement does not include the volume of the combustion chamber.
Engine displacement is determined from the BORE and STROKE of an engine's CYLINDERS. The bore is the diameter of the circular chambers cut into the cylinder block.
Examples: The 427 Chevy bore is 4.312 in, and the stroke is 3.65 in, therefore the displacement for this 8-cylinder engine is:
- 3.1416/4 * 4.3122 * 3.65 * 8 = 426.4 CID.
If the bore is 10 cm and the stroke is 5 cm with 4 cylinders, the calculation is:
- 3.1416/4 * 102 * 5 * 4 = 1570 cm3 ≈ 1.5 liters
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