1. What is the Boost Power Formula?

The Boost Power Formula estimates the additional horsepower gained from forced induction (turbocharging or supercharging) by calculating the effect of increased air pressure on engine performance.

2. How Does the Calculator Work?

The calculator uses the boost power formula:

Where:

• Original HP — Engine's naturally aspirated horsepower
• Boost PSI — Additional pressure from forced induction (pounds per square inch)
• 14.7 — Atmospheric pressure at sea level (PSI)

Explanation: The formula calculates the theoretical power increase based on the increased air density from forced induction.

3. Importance of Boost Pressure Calculation

Details: Understanding potential power gains helps in engine tuning, component selection, and avoiding excessive boost that could damage the engine.

4. Using the Calculator

Tips: Enter original horsepower and boost pressure in PSI. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Is this formula accurate for all engines?
A: This provides a theoretical maximum. Actual gains depend on many factors including engine efficiency, intercooling, and fuel quality.

Q2: Why is 14.7 used in the formula?
A: This represents standard atmospheric pressure at sea level in PSI, the baseline for normal aspiration.

Q3: Does this account for turbo lag?
A: No, this calculates peak potential power, not the power curve or response time.

Q4: How does altitude affect boost calculations?
A: At higher altitudes, atmospheric pressure is lower, so the same boost PSI represents a greater relative increase.

Q5: What's a safe boost level for a stock engine?
A: This varies greatly by engine. Consult manufacturer specifications before adding forced induction.