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Thanks, for the additional annotation on the chart,
Steve. That does make it clear what is happening during the "perturbation"
phase.
Here is a sample of some "dead time" of various fuel
injectors I found on the web - the first number is dead time in
microseconds. So as can be seen the dead time due to injector latency can
vary (in this case from a low of 540 usec (approx 1/2 msec) to a high of 1600
usec or 1.6 msec.
Stock Blue injectors: 728/420CC
STI Pink injectors:
728/ 550CC
PE 650's : 1500/650CC
PE
800's : 1600/850CC
Helix 660: 1180/660cc
UR 785s: 770/785CC
UR 785 D type
540/785CC
Helix 820CC: 1120/820CC
SIDE FEED injectors:
Stock US STI: 1050/500CC
Nismo 720cc : 880/720CC
PE850s :
850/850CC
Here is a
link to even more injectors and their dead times
Interestingly in this link also shows the apparent effect
of voltage on dead time and the advantage of peak and hold injectors in reducing
(but not eliminating dead time)
Ed
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