1. What is Boosted Horsepower?

Boosted horsepower refers to the increased power output of an engine when forced induction (like turbocharging or supercharging) is applied. The calculator estimates this increase based on boost pressure (PSI) and the engine's original horsepower.

2. How Does the Calculator Work?

The calculator uses the boosted horsepower formula:

Where:

• Original HP — Engine's naturally aspirated horsepower
• Boost PSI — Pounds per square inch of boost pressure
• 14.7 — Atmospheric pressure at sea level (PSI)

Explanation: The formula calculates the theoretical horsepower increase by comparing the total pressure (boost + atmospheric) to atmospheric pressure alone.

3. Importance of Boost Pressure

Details: Boost pressure directly affects engine performance. Higher boost increases power but requires proper engine tuning and components to handle the additional stress.

4. Using the Calculator

Tips: Enter the engine's original horsepower and the boost pressure in PSI. The calculator will estimate the boosted horsepower output.

5. Frequently Asked Questions (FAQ)

Q1: Is this calculation accurate for all engines?
A: This provides a theoretical estimate. Actual results may vary based on engine efficiency, turbo/supercharger efficiency, and other factors.

Q2: What's a typical boost pressure range?
A: Street cars often run 5-15 PSI, while performance builds may use 20-40 PSI or more with proper modifications.

Q3: Why is 14.7 PSI used in the formula?
A: This represents standard atmospheric pressure at sea level, which is the baseline for naturally aspirated engines.

Q4: Does this account for turbo lag?
A: No, this calculates peak horsepower under boost, not how quickly boost builds.

Q5: Can I use this for supercharged engines?
A: Yes, the formula works for any forced induction system measured in PSI.