Engine Control Question

[ECMnut at aol.com]

Working from memory here, but at 5000 RPM,
 I think you have less than 13ms between intake events
with a 4 stroke engine.  I'm wondering what calc is
taking place to give you the numbers you mentioned.
Your time window decreases as RPM increases..
Does anyone have the formula?
I'm not where I can scan the archives.
Mike V

<<>When speeding up from a dead stop at WOT, the fuel injector pulse width is
>around 12.2ms.  Once it goes above 3700 rpm or so, it starts to slowly
>decline until it hits 5200 (right before shifting).  At 5200 rpm the pulse
>width is 9.8ms.  Why would this be?  Is this so the engine doesn't melt :),
>or for emissions reasons.  If this stayed at 12.2ms right to the shiftpoint,
>would this generate more power?
>
>Also, this thing has the 730 ECM.  How many frames per second on this baby?
>(I asked this before, but now know exactly what to specify :)  Has anyone
>found out anything about the MEMCALs for this ECM?  I have the eeprom loaded
>in if anyone wants to take a look..
>>>