mm3 Variation

[FUBAR]

All right, I've been seeing some interesting information regarding mm3's that I would like some input on.

Data logging my EFI tunes, I keep seeing mm3 spike to a high number, and slowly or quickly taper off. How much? Varies by truck. Mine, usually 147mm3 @ a 2600uS @ 2800RPM down to 120mm3 @ 2800uS, 3600RPM. Never understood how mm3's could taper off if fuel pressure and uS are increasing. I understand mm3 is purely a reference of pressure and injector opening time, etc. So why do they taper off?

Now, here's a comparable that's interesting. Using my box tuner as a base file, torque limiter off, I ran my script over top of it, verify everything changed, here are the results: 162mm3 @ 2600uS @ 2800RPM UP to 183mm3 @ 2800uS @ 3600RPM. The truck felt much more powerful than my clean EFI tune(when I say "clean" I mean a box tune hasn't touched it.) Throttle response is more instantaneous, and the truck just feels like a frieght train also.

So, here's what I did, set my whole Pedal mm3 table 25% - 100% 30mm3 on each tune (clean EFI and box tune base file.) Here's what happened, clean EFI tune did limit me to 30mm3, Box tune base file with same script and settings as clean EFI tune limited to 98mm3 fueling 63mm3 more than I commanded. Multiplier? I don't know. But here's what I did to tame down the Box tune base file: I went from 25%TP @5mm3 and worked it up to a max of 120mm3 @ 100%TP. Throttle resonse still was instantaneous, but overall power was cut back.

I've heard around 145mm3 is considered WOT because of the mathmatics, but I don't believe so after about grenading my tranny and lookign in the logs.
Food for thought...I'd like to know what you guys think. Attached are 2 screen shots of the Clean EFI tune with my script written over it, and the other the Box tune as the base file with my script written over top of it.

-Andrew