The Fuel Pressure Difference between the Fuel Inlet (Fuel Rail Pressure) and the Injector Discharge (Manifold Pressure) affects the flow rate of the injector. It also has some effects that seem to work backwards. A discussion and some reference flow data is discussed to illustrate the concept. A Atomizer Racing 850 PPH (7300 cc/min) Injector is used for the discussion at 110 psid and 90 psid for comparison.

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