1. What is the Booster Horsepower Calculation?

The Booster Horsepower calculation estimates the new horsepower output when a boost system (like a turbocharger or supercharger) is added to an engine. It shows how much power increase you can expect from forced induction.

2. How Does the Calculator Work?

The calculator uses the booster horsepower formula:

Where:

• \( \text{Original HP} \) — The engine's natural aspirated horsepower
• \( \text{Boost PSI} \) — Pounds per square inch of boost pressure
• 14.7 — Atmospheric pressure at sea level (PSI)

Explanation: The equation calculates the power increase by comparing the total pressure (boost + atmospheric) to standard atmospheric pressure.

3. Importance of Horsepower Calculation

Details: Understanding potential power gains helps in engine tuning, component selection, and performance planning when adding forced induction systems.

4. Using the Calculator

Tips: Enter the engine's original horsepower and the boost pressure you plan to run. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation accurate for all engines?
A: This provides a theoretical maximum. Actual gains depend on many factors including engine efficiency, turbo/supercharger efficiency, and supporting modifications.

Q2: Why is 14.7 used in the formula?
A: 14.7 PSI represents standard atmospheric pressure at sea level, which is the baseline pressure for naturally aspirated engines.

Q3: Does this account for temperature increases?
A: No, this is a simplified calculation that doesn't account for charge air temperature increases from compression.

Q4: Can I use this for nitrous oxide systems?
A: No, this formula is specifically for boost pressure systems. Nitrous oxide works differently.

Q5: What's a typical boost pressure range?
A: Street applications typically run 5-15 PSI, while race applications may go 20-40 PSI or higher with proper engine modifications.