1. What is Engine Displacement?

Engine displacement is the total volume of all the cylinders in an engine. It's a key measurement that indicates the engine's size and potential power output, typically measured in cubic inches or liters.

2. How Does the Calculator Work?

The calculator uses the engine displacement formula:

Where:

• \( B_e \) — Bore diameter (inches)
• \( S_e \) — Stroke length (inches)
• \( N_e \) — Number of cylinders
• \( \pi \) — Mathematical constant (approximately 3.1416)

Explanation: The formula calculates the volume of a single cylinder (π × radius² × height) and multiplies by the number of cylinders. Since bore is diameter, we use B_e²/4 instead of radius².

3. Importance of Engine Displacement

Details: Engine displacement is a critical factor in determining an engine's power characteristics, fuel efficiency, and emissions. Larger displacements generally produce more power but may consume more fuel.

4. Using the Calculator

Tips: Enter bore and stroke measurements in inches, and the number of cylinders. All values must be positive numbers with bore and stroke greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What's 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.

Q2: How do I convert cubic inches to liters?
A: Multiply cubic inches by 0.016387 to get liters (1 cubic inch = 0.016387 liters).

Q3: What is a typical displacement range for passenger cars?
A: Most modern passenger cars have displacements between 1.0L and 3.0L (61-183 cubic inches).

Q4: Does larger displacement always mean more power?
A: Generally yes, but engine design, forced induction, and other factors can significantly affect power output.

Q5: What is the relationship between displacement and fuel economy?
A: Larger displacement engines typically consume more fuel, but modern technologies like cylinder deactivation can improve efficiency.