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Engine Displacement Formula:
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Engine displacement is the total volume of all the cylinders in an internal combustion engine. It's a key measurement that indicates the engine's size and potential power output, typically measured in cubic inches or liters.
The calculator uses the engine displacement formula:
Where:
Explanation: The formula calculates the volume of a single cylinder (πB²S/4) and multiplies it by the number of cylinders to get total engine displacement.
Details: Engine displacement is a critical factor in determining engine performance characteristics including power output, torque, fuel efficiency, and emissions. Larger displacement engines typically produce more power but may consume more fuel.
Tips: Enter bore diameter in inches, stroke length in inches, and number of cylinders. All values must be positive numbers with bore and stroke greater than zero, and cylinders must be at least 1.
Q1: What is the difference between bore and stroke?
A: Bore is the diameter of the cylinder, while stroke is the distance the piston travels within the cylinder from top to bottom.
Q2: How does displacement relate to engine power?
A: Generally, larger displacement engines can produce more power as they can burn more fuel-air mixture per cycle, though many other factors also affect power output.
Q3: What are typical displacement values for different engines?
A: Small car engines: 60-120 cubic inches, performance cars: 200-400 cubic inches, trucks: 300-600+ cubic inches.
Q4: How do I convert cubic inches to liters?
A: Multiply cubic inches by 0.016387 to get liters (1 cubic inch = 0.016387 liters).
Q5: Why is displacement measured in cubic inches?
A: Cubic inches is a traditional measurement unit used primarily in the United States for engine displacement, though liters are also commonly used.