1. What is Torque Converter Stall Speed?

Torque converter stall speed is the maximum engine speed at which the torque converter can hold the engine before it starts to transfer power to the transmission. It's a critical parameter for performance vehicles, especially in Chevy applications.

2. How Does the Calculator Work?

The calculator uses the stall speed formula:

Where:

• \( Stall \) — Stall speed in RPM
• \( K \) — Torque converter constant (typically 20-25 for street applications)
• \( HP \) — Engine horsepower

Explanation: The formula calculates the approximate stall speed based on the engine's horsepower and the torque converter's characteristics.

3. Importance of Stall Speed Calculation

Details: Proper stall speed selection is crucial for optimal vehicle performance. It affects launch characteristics, acceleration, and overall drivability in Chevy vehicles.

4. Using the Calculator

Tips: Enter the torque converter constant (K value) and engine horsepower. The K value depends on the torque converter design and application.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical K value for street Chevy applications?
A: For street applications, K values typically range from 20-25. Performance applications may use higher values.

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

Q3: Can I use this calculator for other vehicle brands?
A: While designed for Chevy applications, the formula works for any vehicle with an automatic transmission.

Q4: What factors affect the K constant?
A: Torque converter design, stator angle, fin count, and internal clearances all affect the K value.

Q5: Should I consult a professional for stall speed selection?
A: Yes, professional consultation is recommended as stall speed affects overall vehicle drivability and transmission longevity.