Diesel EFI

[Pete Sterrantino]

I have recently joined these mailing lists (diy-efi and efi-332) and am
learning a great deal about EFI.  I currently work with 68HC11 and 68332
based controllers and am looking to develop an EFI system for a large (about
3000 HP), fixed-speed, turbocharged diesel.  I have joined the SAE,
collected a series of papers and books, including several from Bosch, and
attended a couple of seminars.  I have picked up quite a bit, but several
core questions remain unanswered.  I may be barking up the wrong tree, but
am hoping someone on the list can answer or at least point me in the right
direction. 

I do not understand the generation of the fueling maps.  I understand I can
use PV=nRT to calculate the amount of air (or O2) being inducted, but how
does that correspond to the amount of fuel used? What is (are) the correct
A/F (or O2/F) ratios for diesel engines of this type?  Secondly, in a fixed
speed engine, fuel consumption varies with load.  If I am applying this
correctly, and a fixed RPM corresponds to a certain volume/stroke, how is
load accounted for?  Do you just add more fuel up to a certain limit?  Is
this linear? I have tried to "cheat" and get the answers to these questions
by determining the amount of fuel injected by a mechanical injector over the
full stroke range, however, this information is not easy to get.  I would
also like to be able to back up any calculational values with real injector
data and vice-versa. 

Any suggestions? Thanks in advance.

Pete Sterrantino  
email: sterrant at jaxnet.com