Quote:
Originally Posted by dkveuro
It don't work that way...the lower pressure will inject slightly earlier...the injection pump determines how much fuel...being as fuel is nearly incompressible the i/p pushes the fuel and it don't matter if it was 170 bar the fuel quantity will be the same for that throttle position.
However, the engine will be a little quieter.
Bosch uses that 120 to 135 bar setting primarily to inject a mist of fuel rather than a squirt or large droplets that would not completly burn.
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I agree that the ip determines how much fuel is going to the injectors, but there's excess fuel otherwise there wouldn't be any need for fuel return hoses. If there's fuel returning from the injectors it means that not all the fuel is being injected. Is this correct?