AEM Universal EMS, AEMPro / Injectors
 

I used an AEM 30-1900U Universal EMS (aka: AEM "RaceBox") in my latest build. Actually, I got a LOT of really good tips here on HMT that helped me successfully build a stainless equal length full V-band header for my Tial Turbine'd GT3076R among many other fabricated and home made parts components and systems.
(Frankly, the parts and "kits" and "stage" this and that for Audi's and VW's makes me want to vomit down the neck of my shirt, and I ended up even making a lot of the simple, available parts due to my disdain for the crap and crap dealers on the public market...
Anyway, now that I have installed a standalone EMS on a custom built mil-spec harness, -totally done away with the Factory ECU, and achieved 442.2 AWHP from my stroked and poked 1.8L motor, I am ready for bigger injectors and to fill the nitrous bottle for the first time.
Trouble is, the injectors I would LIKE to use aren't available in the "staged injector wizard" in AEMPro
Does anyone here have any experience with this tuning platform? And/or can anyone tell me how injectors are tested in order to come up with the correct calibration?
Changing injectors in this tuning software results in a graph called "Inj. Batt Offset" and a usec value which changes via the injector selected from the "Wizard."
Otherwise these values must be manually input. and for this I am unaware of how to obtain these figures. AEM tests a number of common injectors, but the ones I wnt to use for staged injection (which will provide fueling for my Direct Port DRY nitrous nozzles with a "Octane On Demand" system similar to what Nelson Racing Engines uses)
Any help will be appreciated