Injector Duty Cycle Calculator

Calculate injector duty cycle to ensure adequate fuel delivery capacity.

HP
lb/hr
RPM
PSI
PSI
Pressure at which injector flow was rated

Duty Cycle Guidelines

Duty CycleStatus
0-70%Safe - Good Headroom
70-80%Acceptable - Daily Driver
80-85%Caution - Limited Headroom
85-90%Warning - Upgrade Soon
90-100%Critical - At Limit
100%+Maxed - Running Lean!