1. What Is The Supercharger Pulley Size Calculator?

The Supercharger Pulley Size Calculator helps determine the appropriate pulley size needed to achieve a desired boost level based on your current setup. It uses the mathematical relationship between pulley size and boost pressure to provide accurate results.

2. How Does The Calculator Work?

The calculator uses the pulley size formula:

Where:

• Current Pulley — Your current pulley size in inches
• Current Boost — Your current boost pressure in psi
• Desired Boost — The boost pressure you want to achieve in psi

Explanation: The formula calculates the square root of the ratio between current and desired boost, then multiplies it by your current pulley size to determine the required pulley size for your target boost level.

3. Importance Of Proper Pulley Sizing

Details: Correct pulley sizing is crucial for achieving optimal supercharger performance. Using the wrong pulley size can lead to under-boosting (reduced performance) or over-boosting (potential engine damage).

4. Using The Calculator

Tips: Enter your current pulley size in inches, current boost pressure in psi, and desired boost pressure in psi. All values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is pulley size important for supercharger performance?
A: Pulley size directly affects the supercharger's rotational speed, which determines the amount of boost generated. Smaller pulleys increase boost, while larger pulleys decrease boost.

Q2: What are typical pulley size ranges?
A: Pulley sizes typically range from 2.5 to 4.0 inches for most supercharger applications, but this can vary depending on the specific supercharger model and engine setup.

Q3: When should I consider changing my supercharger pulley?
A: Consider pulley changes when you want to increase or decrease boost levels, typically during performance upgrades or when optimizing for different fuel types or racing conditions.

Q4: Are there limitations to this calculation?
A: This calculation provides a theoretical value. Actual results may vary due to factors like supercharger efficiency, engine modifications, atmospheric conditions, and other system variables.

Q5: Should I consult a professional before changing pulleys?
A: Yes, always consult with a professional mechanic or tuner before making supercharger modifications, as pulley changes may require additional supporting modifications and proper tuning.