Resolution.

[Bruce Plecan]

But, but, what about the filtering?.  Doesn't that fly in the  face
of needing absolutely accurate MAP sensing?.
  **Notice the question mark, I'm asking.
  This "filtering" is a funny animal, in so far as using larger ID/
loner sensor lines can make a vast difference on some
applications, and I've always had better response with smaller
shorter lines.
Bruce

 more accurate input
>data, and that the auto mfgrs are not bloody likely to spend the money
>required to be any more accurate than they need to be in order to meet
>emissions regs with an average HP engine!!
>
>Real questions here are :"How many bits wide are the A/D converters in the
>ecu?" and "How many mapping points does the load/rpm matrix need to
>contain?" and "How many bits wide is the fuel rate calculation (and tables)
>in the ecu?" and ""What is the minimum time increment to injector pw which
>the ecu will implement?" and "How many bits wide does everything need to be
>in order to obtain the desired level of turndown to give your high HP
>engine decent street manners?"
>
>Staging injectors, and rising rate fuel pressure control are certainly a
>help, particularly if there are fuel rail pressure and temp inputs to the
>ecu for fuel rate corrections on the fly!
>
>Regards, Greg
>
>