1. What is the Torque Converter Stall Formula?

The torque converter stall formula calculates the optimal stall speed for a Chevy torque converter based on engine horsepower and a specific constant value. Proper stall selection is crucial for optimal performance and drivability.

2. How Does the Calculator Work?

The calculator uses the stall formula:

Where:

• \( Stall \) — Torque converter stall speed (rpm)
• \( K \) — Constant value (typically ranges from 15-25)
• \( HP \) — Engine horsepower (hp)

Explanation: The formula provides a mathematical relationship between engine horsepower and the optimal stall speed for a torque converter, with the K constant accounting for various vehicle and transmission factors.

3. Importance of Proper Stall Selection

Details: Correct stall speed selection is essential for maximizing acceleration, improving launch characteristics, and ensuring proper transmission operation. Too low or too high stall speeds can negatively affect performance and drivability.

4. Using the Calculator

Tips: Enter your engine's horsepower and select an appropriate K constant based on your vehicle type and usage. Typical K values range from 15 for street applications to 25 for racing applications.

5. Frequently Asked Questions (FAQ)

Q1: What is torque converter stall speed?
A: Stall speed is the maximum rpm the engine can reach with the brakes applied and transmission in gear before the vehicle begins to move.

Q2: How do I choose the right K constant?
A: The K constant depends on vehicle weight, transmission type, rear gear ratio, and intended use. Lower values (15-18) for street, higher values (20-25) for racing.

Q3: What happens if stall speed is too high?
A: Excessive stall speed can cause poor street manners, increased heat generation, reduced fuel efficiency, and potential transmission damage.

Q4: Can I use this calculator for non-Chevy vehicles?
A: While designed for Chevy applications, the formula can provide a good starting point for other makes with similar transmission characteristics.

Q5: Should I consult a professional for final selection?
A: Yes, this calculator provides an estimate. Always consult with a transmission specialist for final torque converter selection based on your specific setup.