Calculate Brake Specific Fuel Consumption for engine efficiency.
Engine Data
Total pounds of fuel per hour
Current power output
Results Title
Bsfc Value0.500lbs/(HP*hr)
StatusStandard (Turbo/Rich)Comparison to industry standards
Typical BSFC Ranges
NA Gasoline0.45 - 0.50
Turbo Gasoline0.55 - 0.60
Diesel0.35 - 0.40
About this calculator
Overview
BSFC measures engine fuel efficiency by calculating fuel consumed per unit of power produced. Lower BSFC means better efficiency. Essential for engine tuning, comparing engines, and estimating fuel needs.
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Pro Tips
A lower BSFC number means the engine is more efficient at turning fuel into power.
BSFC changes across the RPM range; engines usually have a 'sweet spot' with maximum efficiency.
Fun Fact
Did you know? Modern hybrid engines operating on the Atkinson cycle can achieve BSFC values similar to high-end diesels.
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Fun Facts
Formula: BSFC = Fuel Flow Rate (lb/hr) / Power (hp)
