Injector Confusion

[CSH-HQ]

"Basically"  the P+H like to operate at times ranging from 1-5msec, and 
saturated 2-10msec.  So it's more a matter of rpm range that you want to use
(ok, firing rate) that demands which get used.  Naturely for a high HP to 
run cleanly at idle you need to be able to control it at a short pulse width.
BUT, NOT ALL P+H or SATURATED are linear, especially at idle......
  So some P+H for some applications tend to work well, but this is not a 
universal law.  Look at some of the speciality lists,, and there are some 
types of injectors that just so happen to work really well.
  I personally think the rising rate regulators have a place on N/A high HP 
applications.  AND especially on S/C  T/C  applications.
  Cheers
Grumpy
  Now try looking up injector firing strategies....
  
>I just did some looking in the archives, and now understand the difference
>between peak-hold and saturated injectors.   What I'm missing are the
>advantages of using p-h units in a ECM which was originally setup for
>saturated, eg. 165/730's.
>
>>From what I understand, p-h's are more controllable at shorter pulse
>widths.   So, wouldn't a ECM cal'd for saturated avoid or at least
>compensate for the saturated units which can't work as well with short
>pulse widths?
>
>Does a p-h injector flow more (read: volume of fuel) for a given opening
>time than a saturated?
>
>
>
>
>--> Bob Valentine
>--> bob at tecmark.com
>