Thanks Guys...
I've come up with an answer, big thanks to
Sleeper and his "Injector pw max?" thread. Check me here if I've missed something.
Scanmaster 2 is reporting commaned injector "On Time" in milliseconds, nothing more.
To convert this information to "Injector Duty Cycle", a percentage, we need to divide injector "On Time" by the total available time. Total available time is defined as the time from intake valve open to intake valve open, and is represented by this formula:
60,000 X 2/RPM = Total Available Time
The total available time becomes less and less as RPM's get higher. I used the formula and developed the following table representing total available time at different RPM's:
RPM's....................
Total Available Time
800.......................................150 Ms
1000......................................120 Ms
2000.......................................60 Ms
3000.......................................40 Ms
4000.......................................30 Ms
5000.......................................24 Ms
6000.......................................20 Ms
Divide the injector "On Time" as reported by Scanmaster by the total available time above and
bang theres your injector Duty Cycle - stated as a percentage.
So.....back to the original question:
Duh....see above.
and how can I use this new information going forward?
If your injector duty cycle reaches 90-95% at WOT, you are on the edge, and you should think about moving up.
Or, as Mark suggested, start using Direct Scan and have it do the math, and retain the data on the hard drive for later review
