Wallace Engine Displacement Calculator

Wallace Displacement Formula:

\[ V = \pi \times \text{bore}^2 \times \text{stroke} / 4 \times \text{cylinders} \]

Engine Displacement (V):

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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.

2. How Does the Calculator Work?

The calculator uses the Wallace displacement formula:

\[ V = \pi \times \text{bore}^2 \times \text{stroke} / 4 \times \text{cylinders} \]

Where:

\( V \) — Engine displacement (m³)
\( \pi \) — Mathematical constant (~3.14159)
\( \text{bore} \) — Diameter of each cylinder (m)
\( \text{stroke} \) — Distance piston travels (m)
\( \text{cylinders} \) — Number of cylinders

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 generally means more power but lower fuel efficiency.

4. Using the Calculator

Tips: Enter bore and stroke in meters (convert from mm if needed) and number of cylinders. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert the result to liters?
A: Multiply the result in m³ by 1000 to get liters (1 m³ = 1000 liters).

Q2: What's a typical bore/stroke ratio?
A: Most engines have a ratio between 0.8 to 1.2, with performance engines often having larger bores.

Q3: Does displacement equal power?
A: Not directly - power depends on many factors including RPM, forced induction, and engine design.

Q4: What's the difference between bore and stroke?
A: Bore is cylinder diameter, stroke is piston travel distance. Together they determine cylinder volume.

Q5: How does displacement affect fuel economy?
A: Generally, larger displacement engines consume more fuel, but modern technologies can mitigate this.