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Originally posted by Adam Kindness
Fuel injectors in general are designed to deliver fuel within a certain range of fuel pressure, duty cycle and volumetric flow rate parameters. When any of these parameters are exceeded, the spray pattern and atomization properties of the fuel being injected degrade rapidly - which is particularly evident with the standard XR6 Turbo injectors. When increasing the fuel pressure in order to force more fuel through the injector nozzles, the resultant spray pattern exhibits a significant degradation in fuel particle size and spread. In addition, in order to supply fuel at a higher pressure, the standard fuel pump is placed under greatly increased load.

Needless to say, poor fuel spray patterns have severe consequences on fuel economy, throttle response and most importantly on engine durability, particularly at high power levels.

There are many ways of increasing fuel flow but only one is technically correct - Appropriately sized injectors operating within the specified injector duty cycle and fuel pressure to achieve the desired power level.

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