Your injectors have a "flow rate" when run static.
Thats the rated flow at 43.5 PSI or 3 BAR.
our fuel system namely the FPR is setup so that the injector always sees an effective pressure of 58 PSI or 4 BAR.
Since the injectors inject a fluid, they do not flow linearly and follow Berneroulli's principle. Bernoulli's principle - Wikipedia, the free encyclopedia
Injectors respond mostly linearly after 2-4 ms. Before that, they respond slower than expected. The smaller the pulse width (the on time commanded by the PCM) the longer they take to flow the expected rate.
