I spoke with Isuzu a few weeks ago and was able to obtain a dyno chart for the U.S. version of the 4BD2-TC. I've attached a copy below. It's also in my Jeep build-up thread on Pirate4x4:
Build-up: Jeep YJ w/ Isuzu diesel.
Between IH8MUD, 4btswaps.com, and Pirate, there's too many Isuzu diesel threads to keep track of!