1. What is the Boost HP Equation?

The Boost HP equation estimates additional horsepower gained from forced induction (turbocharging or supercharging) based on the base naturally aspirated horsepower and boost pressure. This calculation is commonly used for performance estimation and sale purposes.

2. How Does the Calculator Work?

The calculator uses the Boost HP equation:

Where:

• \( Base\ HP \) — Naturally aspirated horsepower (hp)
• \( Boost\ PSI \) — Boost pressure (psi)
• 14.7 — Atmospheric pressure at sea level (psi)

Explanation: The equation calculates the approximate power increase by determining how much additional air mass is being forced into the engine compared to atmospheric pressure.

3. Importance of Boost HP Calculation

Details: Understanding potential power gains from forced induction helps in performance planning, component selection, and setting realistic expectations for modified vehicles.

4. Using the Calculator

Tips: Enter base naturally aspirated horsepower in hp and boost pressure in psi. All values must be valid (positive numbers).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: This provides a rough estimate. Actual gains depend on many factors including engine efficiency, intercooling, and tuning.

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

Q3: Does this account for turbo lag or efficiency?
A: No, this is a theoretical calculation that doesn't account for real-world factors like turbo spool time or heat.

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

Q5: What's a typical boost level for street cars?
A: Most street applications run between 6-15 psi, while high-performance builds may exceed 30 psi.