Boost Lab, Inc. — Dade City, FL

Fuel Injector
Calculator

BSFC-based injector sizing with duty cycle analysis and common injector size recommendations

Results are estimates based on your inputs and standard BSFC values. Always verify injector sizing with your tuner before purchasing. Boost Lab, Inc. offers professional fuel injector cleaning, flow testing, and service — contact us if your injectors need attention before your build.

Target Horsepower

Engine Configuration

Injector Count i

Fuel Type i

Induction i

Max Duty Cycle i

Advanced Options

Custom BSFC i

Base Fuel Pressure i

Results

Required Per Injector

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cc/min

Required Per Injector

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lb/hr

Duty Cycle

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% at target HP

Total Fuel Flow

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cc/min system total

Total Fuel Flow

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lb/hr system total

BSFC Used

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lb/hp-hr

BHP Target

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crank horsepower

Duty Cycle at Target Power

Recommended maximum: 80% Absolute limit: 85%

0%50%80% ✓85%100%

Common Injector Sizes

Flow ratings are at standard 43.5 PSI (3 bar). If your system runs a different pressure, actual flow will vary by the square root of the pressure ratio.

Size	cc/min	lb/hr	Duty Cycle at Target	Status

Build Assessment

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Injector Service

Boost Lab, Inc. offers professional ultrasonic fuel injector cleaning, flow testing, leak testing, and full reconditioning. If your injectors are marginal or you're upgrading, we can service them before your build goes together.

Contact Boost Lab, Inc.