1. What is the Stall Speed Formula?

The stall speed formula estimates the appropriate torque converter size for Chevy vehicles based on horsepower, weight, and a dimensionless K factor. This calculation helps determine the optimal stall speed for performance applications.

2. How Does the Calculator Work?

The calculator uses the stall speed formula:

Where:

• \( HP \) — Horsepower
• \( weight \) — Vehicle weight in pounds
• \( K \) — Dimensionless factor based on converter design

Explanation: The formula calculates the approximate stall speed needed for optimal torque multiplication and vehicle performance.

3. Importance of Proper Torque Converter Sizing

Details: Correct torque converter sizing is crucial for maximizing acceleration, improving launch characteristics, and ensuring efficient power transfer in automatic transmission vehicles.

4. Using the Calculator

Tips: Enter accurate horsepower and weight values, along with the appropriate K factor for your application. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical K factor value?
A: K factor typically ranges from 2000-2800 for street performance applications, but varies based on specific converter design.

Q2: How does stall speed affect performance?
A: Higher stall speeds allow the engine to reach its power band faster, improving acceleration but potentially reducing fuel efficiency.

Q3: Should I use crank or wheel horsepower?
A: Use crank horsepower for most accurate results, as the formula is based on engine output rather than wheel power.

Q4: What weight should I input?
A: Use the vehicle's curb weight plus expected passenger/cargo weight for most accurate results.

Q5: Can this calculator be used for other vehicle brands?
A: While developed for Chevy applications, the formula can provide approximate values for other vehicles with similar transmission characteristics.