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Chevy Torque Converter Size Calculator

Stall Speed Formula:

\[ Stall Speed = \frac{HP \times K}{\sqrt{Weight}} \]

hp
constant
lb

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1. What is the Stall Speed Formula?

The Stall Speed formula estimates torque converter stall speed based on horsepower, a constant factor, and vehicle weight. It provides a useful approximation for selecting the appropriate torque converter size for Chevy vehicles.

2. How Does the Calculator Work?

The calculator uses the Stall Speed formula:

\[ Stall Speed = \frac{HP \times K}{\sqrt{Weight}} \]

Where:

Explanation: The formula calculates the RPM at which the torque converter will stall, helping determine the optimal converter size for your vehicle's performance characteristics.

3. Importance of Stall Speed Calculation

Details: Proper stall speed selection is crucial for maximizing acceleration, improving launch characteristics, and ensuring optimal transmission performance in Chevy vehicles.

4. Using the Calculator

Tips: Enter horsepower in hp, the appropriate K constant (consult your converter manufacturer), and vehicle weight in pounds. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical K constant value?
A: K values typically range from 2.2 to 3.2, with higher values for performance applications and lower values for street/strip combinations.

Q2: How does stall speed affect performance?
A: Higher stall speeds allow the engine to reach its power band quicker, improving acceleration but may reduce fuel efficiency at cruising speeds.

Q3: What weight should I use for the calculation?
A: Use the actual curb weight of your vehicle including driver, fuel, and any additional equipment that will be present during operation.

Q4: Are there limitations to this formula?
A: This is an estimation formula. Actual stall speed can vary based on torque converter design, engine torque characteristics, and other factors.

Q5: Should I consult a professional for converter selection?
A: Yes, while this calculator provides a good estimate, professional consultation is recommended for optimal torque converter selection based on your specific application.

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