[drmiller100]

seems like if we are running "efficient" we are somewhere in the neighborhood of 14:1 air to fuel.

If we run twice as much water as fuel, then our final ratio will be something like 7:1 water to exhaust gas (rounding a bit).

one of the interesting things is our pumping losses go towards zero - if we get the water up close to 200 or so before we inject it, the "vacuum" of the intake will cause it to boil in the partial vacuum.

gotta love it when the engineers start spouting degrees and years of service to the guvment. fwiw, I'm pretty sure i've got you covered, but my schooling was more theoretical and less train driver driven.