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HP vs CC Formula:
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The HP vs CC Calculator estimates horsepower from engine displacement in cubic centimeters using a standard approximation formula. This provides a quick reference for small engine power estimation.
The calculator uses the approximation formula:
Where:
Explanation: This formula provides a rough estimate of horsepower based on engine displacement, commonly used for small engines where 15cc typically equals about 1 horsepower.
Details: Understanding the relationship between engine displacement and horsepower helps in engine selection, performance estimation, and comparing different engine specifications for various applications.
Tips: Enter engine displacement in cubic centimeters (cc). The value must be greater than 0. The calculator will provide an estimated horsepower output based on the standard approximation.
Q1: How accurate is this approximation?
A: This is a rough estimate that works reasonably well for small engines. Actual horsepower can vary based on engine design, efficiency, and other factors.
Q2: Why divide by 15 specifically?
A: The 15:1 ratio is a common industry approximation for small internal combustion engines, representing a typical power-to-displacement ratio.
Q3: Does this work for all engine types?
A: This approximation is most accurate for small gasoline engines. Larger engines, diesel engines, or high-performance engines may have different ratios.
Q4: What factors affect the actual horsepower output?
A: Engine design, compression ratio, fuel system, ignition timing, air intake, and exhaust systems all influence actual horsepower beyond just displacement.
Q5: Can I use this for vehicle engines?
A: While the basic principle applies, modern vehicle engines often have higher efficiency, so the actual horsepower may be higher than this approximation suggests.