Does fuel pressure affect injector flow?

Yes, increasing fuel pressure will INCREASE the flow rate of the injector. DW injector flow rates are calculated at 3 bar (43.5 psi) of pressure. Although DW injectors are able to operate at pressures in excess of 100 psi, we suggest a system pressure of 40-80 psi for best performance (faster injector response times, optimized spray patterns, and increased reliability of your entire fuel system). There is a calculator on the resources section of our website that will calculate your injectors’ flow rate at different pressures.

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