Team (can I call us all that?)
I've been trying to figure out this same problem for awhile by poking around other systems.
Here's some of what I've learned:
The Bosch OEM units (EDC15,EDC16,EDC17) units work well but are not really tuneable, as described earlier; however the Bosch Motorsports units are:http://www.bosch-motorsport.de/content/language2/html/3690.htm
but for around $6,000.00 for the 12 cylinder unit they had better be...
They don't seem to use the remote Injector Driver Module (IDM) we are talking about here. It seems that is done internally, which tells me that either the 12 circuits are phyically small, or the same circuit can be used for all 12 cylinders, one at a time in sequence.
There are a couple of other standalones that have gone the route of IDMs plugged into a gasser ECU and they seem to be working, so that tells me the idea of a buildable IDM is also feasible:
[urlhttp://adaptronic.com.au/][/url] These guys have been powering diesel pullers with over 2,000HP. check out YouTube for that.http://www.specialist-components.co.uk/engineering/diesel-engine-management/
I can't seem to find a way to tune these units, but note the resemblence between the picture here and the one from Adaptronics...
[urlhttp://www.efilive.com/][/url] is a great place to learn how to tune a diesel, for those not yet up to speed, but that system only flashes existing OEM Duramax and Cummins motors. You can download the tuning software for free and learn what all of the knobs to turn are.
Finally, for the techno-crowd (aren't we all?) I found a Russian University that has a free downloadable software for diesel development/design/tuning: http://www.diesel-rk.bmstu.ru/Eng/index.php
All of that to say, it is doable here and whether we design and IDM or a daughter board we'll make it happen. All of the systems do talk about the faster CPU and the higher accuracy required. I've discussed this on the main Megasquirt site before with moderate possibilities.
What am I missing?...
Oh yes, Keep up the good work all
...and make CERTAIN our answer will run 12 cylinders; that will enable all of the Audi, Renault, Volvo etc. teams to play with us