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There are lots of rumors floating around that other people have the same injectors as our ID2000, they're just not matched by the same process. This is correct, except the rest of the rumor is that the consistency from Bosch is so good that our dynamic matching process doesn't have any benefit. This is far from the truth. The chart below shows flow deviation vs. pulsewidth for every 10th injector out of a batch. You can see that while static flow variance is pretty good, there is quite a spread at 2msec pulsewidth, where much of the life of the injector is spent and where you really see and feel a difference from cylinder to cylinder variations. About a 2% spread at static flow but as much as a 13% spread at 2msec. Do you think a 13% variance from cylinder to cylinder at idle and part throttle will make a difference in how a car runs?
Here's a dynamically matched set of 6. It looks like there are only 4 lines on the graph, but there are actually 6, some are just so similar they pretty much overlay.
Tony Palo
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