1. What is CC to LBS Conversion?

The CC to LBS conversion is used to translate fuel injector flow rates from cubic centimeters per minute (cc/min) to pounds per hour (lbs/hr). This is important for comparing injector specifications and tuning fuel delivery systems.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( \text{cc/min} \) — Fuel flow rate in cubic centimeters per minute
• \( 0.105 \) — Conversion factor from cc/min to lbs/hr

Explanation: The conversion accounts for the density of gasoline (approximately 6.25 lbs/gallon) and unit conversions between volume and mass measurements.

3. Importance of Fuel Flow Rate Calculation

Details: Accurate fuel flow rate conversion is crucial for engine tuning, fuel system design, and ensuring proper air/fuel ratios for optimal engine performance and emissions.

4. Using the Calculator

Tips: Enter the fuel injector flow rate in cc/min. The value must be positive. The calculator will automatically compute the equivalent flow rate in lbs/hr.

5. Frequently Asked Questions (FAQ)

Q1: Why convert between cc/min and lbs/hr?
A: Different manufacturers and tuning systems use different units, and conversion allows for comparison and proper system configuration.

Q2: Is the conversion factor exact?
A: The 0.105 factor is standard but assumes gasoline with specific gravity of 0.72-0.77. For other fuels, the factor may vary slightly.

Q3: What are typical flow rates for fuel injectors?
A: Stock injectors typically range 150-300 cc/min (15-30 lbs/hr), while performance injectors can exceed 2000 cc/min (200+ lbs/hr).

Q4: How does fuel pressure affect flow rates?
A: Flow rates increase with the square root of pressure ratio. Doubling pressure increases flow by about 41%.

Q5: Should I use this for diesel injectors?
A: Diesel has different density, so use a conversion factor of approximately 0.083 for diesel fuel.