1. What is Stall Speed Calculation?

Stall speed calculation estimates the approximate stall speed of a torque converter based on the engine's torque output and the converter's K-factor. This helps in selecting the right torque converter for optimal vehicle performance.

2. How Does the Calculator Work?

The calculator uses the stall speed formula:

Where:

• \( K \) — K-factor (rpm/√lb-ft)
• \( \text{Torque} \) — Engine torque (lb-ft)

Explanation: The formula provides an approximation of stall speed by multiplying the K-factor by the square root of the engine torque.

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 automotive applications.

4. Using the Calculator

Tips: Enter the K-factor (typically provided by the manufacturer) in rpm/√lb-ft and engine torque in lb-ft. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a K-factor?
A: The K-factor is a characteristic value of a torque converter that relates its stall speed to the square root of engine torque.

Q2: How accurate is this calculation?
A: This provides an approximation. Actual stall speed may vary based on other factors like converter design, fluid characteristics, and engine performance.

Q3: What is a typical K-factor range?
A: K-factors typically range from 10-25 rpm/√lb-ft for street applications, with higher values for performance converters.

Q4: When should I use this calculation?
A: Use when selecting a torque converter for your vehicle to ensure it matches your engine's torque characteristics.

Q5: Can I use this for any type of torque converter?
A: This formula works best for standard hydraulic torque converters. Specialized converters may have different characteristics.