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Engine Displacement Calculator

Engine Displacement Formula:

\[ V = \pi \times \left(\frac{bore}{2}\right)^2 \times stroke \times cylinders \]

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1. What is Engine Displacement?

Engine displacement is the total volume of all the cylinders in an internal combustion engine. It's a key specification that indicates engine size and power potential, typically measured in cubic inches (ci) or liters (L).

2. How Does the Calculator Work?

The calculator uses the engine displacement formula:

\[ V = \pi \times \left(\frac{bore}{2}\right)^2 \times stroke \times cylinders \]

Where:

Explanation: The formula calculates the volume of a single cylinder (πr²h) and multiplies by the number of cylinders.

3. Importance of Displacement Calculation

Details: Displacement directly relates to engine power and torque. Larger displacement engines typically produce more power but may have lower fuel efficiency.

4. Using the Calculator

Tips: Enter bore and stroke in inches, and number of cylinders. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How does displacement relate to engine power?
A: Generally, larger displacement means more power potential, but efficiency, design, and forced induction also play major roles.

Q2: What's the difference between bore and stroke?
A: Bore is cylinder diameter, stroke is how far the piston travels. Together they determine cylinder volume.

Q3: How do I convert cubic inches to liters?
A: Multiply cubic inches by 0.016387 to get liters (1 liter = 61.0237 cubic inches).

Q4: What's a typical displacement range?
A: Passenger cars: 1.0-6.0L (61-366ci), trucks: 4.0-8.0L (244-488ci), motorcycles: 0.25-2.0L (15-122ci).

Q5: Does displacement affect fuel economy?
A: Generally yes - larger engines consume more fuel, but modern technologies can mitigate this relationship.

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