Agnem said:
I thought the 6.5 was mechanically injected also? Basically I thought the 6.2/6.5 duo was like the 6.9/7.3 duo in their evolution.
I think they basiclaly were similar to our IDI's in evolution, except that I think that the 6.5l came later than the 7.3l, and it was in production a lot longer
(note that I didn't say that that's a good thing).
IIRC, the 6.5l was mechanically injected up to '93, and '94 and later had a modified injector pump that was controlled electronically. I've never seen one, but I would guess that it's similar in concept to the IP used in '98-'02 Dodges (the 1st gen 24 valve). The electronic IP's on the 6.5l's were REAL problematic from what I gather (no personal experience, thank the diesel gods).
I rode in a '98 6.5l GMC 3500HD once, and even before the turbo, my 6.9l could have run circles around it...