Performance Delta
Fuel Pump & Fuel Line Calculator
Estimate fuel demand, minimum pump capacity and a suitable PTFE fuel-line size for petrol, ethanol blends and forced-induction applications.
Vehicle and fuel details
%
%
bar
bar
%
lph
Set to zero where no return-powered Venturi is fitted.
m
%
Adds an equivalent length for bends, fittings, filters and unions.
Advanced pump comparison
lph
bar
Use the manufacturer's pump curve rather than free-flow capacity.
Calculated recommendation
-6 AN PTFE
Calculated crank power
—
Engine fuel demand
—
Minimum pump flow
—
Maximum fuel pressure
—
| Line | Nominal bore | Fuel velocity | Est. pressure drop | Assessment |
|---|
System summary
- Suggested feed line —
- Suggested return line —
- Estimated peak return flow —
- Fuel mass demand —
- Fuel density used —
Important
This calculator provides a planning estimate, not a guarantee of fuel-system capacity. Confirm pump flow using the manufacturer's pressure-versus-flow chart and verify fuel pressure under load. Filters, fittings, wiring voltage, pump temperature, regulators, Venturis and fuel rails can all introduce additional restrictions.
