1. What is HP Boost Calculation?

The HP boost calculation estimates the horsepower increase when adding forced induction (like a turbocharger or supercharger) to an engine. It helps predict performance gains from boost pressure.

2. How Does the Calculator Work?

The calculator uses the HP boost formula:

Where:

• Base HP — Engine's naturally aspirated horsepower
• Boost — Forced induction pressure in psi (pounds per square inch)
• 14.7 — Atmospheric pressure at sea level (psi)

Explanation: The formula calculates the theoretical horsepower increase by comparing boost pressure to atmospheric pressure.

3. Importance of HP Boost Calculation

Details: Understanding potential horsepower gains helps in engine tuning, selecting appropriate turbocharger sizes, and ensuring engine components can handle the increased power.

4. Using the Calculator

Tips: Enter base horsepower and boost pressure in psi. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation accurate for all engines?
A: This provides a theoretical estimate. Actual gains depend on many factors like turbo efficiency, intercooling, engine tuning, and mechanical losses.

Q2: Why 14.7 psi in the formula?
A: 14.7 psi is standard atmospheric pressure at sea level, used as a reference point for boost pressure.

Q3: Does this account for turbo lag?
A: No, this calculates peak horsepower potential, not how quickly boost builds.

Q4: Can I use this for superchargers?
A: Yes, the formula works similarly for both turbochargers and superchargers.

Q5: What's a typical boost pressure range?
A: Street cars often run 6-15 psi, while race engines may use 20-40+ psi with proper supporting modifications.