How to Calculate Car Engine Displacement

Introduction

Engine displacement is an important specification for any car engine. It is a measure of the volume of air and fuel that the engine can move in one combustion cycle. A larger displacement engine will generally produce more power than a smaller displacement engine.

There are two main ways to calculate engine displacement:

* Using the bore and stroke measurements
* Using the engine’s cubic inch displacement (CID)

Using the Bore and Stroke Measurements

The bore is the diameter of the cylinder, and the stroke is the distance that the piston moves up and down in the cylinder. To calculate engine displacement using the bore and stroke measurements, you need to use the following formula:

Displacement = (Bore x Stroke x Number of Cylinders) / 1000

For example, a 3.0-liter engine with a bore of 86 mm and a stroke of 86 mm would have a displacement of:

Displacement = (86 mm x 86 mm x 6) / 1000 = 2997 cc

Using the Engine’s Cubic Inch Displacement (CID)

The engine’s CID is a measure of the engine’s displacement in cubic inches. To calculate engine displacement using the CID, you need to convert it to cubic centimeters (cc) using the following formula:

Displacement (cc) = CID x 16.387

For example, a 3.0-liter engine with a CID of 183 would have a displacement of:

Displacement (cc) = 183 x 16.387 = 2997 cc

Conclusion

Engine displacement is an important specification for any car engine. It can be used to compare the power output of different engines and to determine the fuel efficiency of a particular engine. There are two main ways to calculate engine displacement: using the bore and stroke measurements or using the engine’s CID.