>They are slightly different - industrial diesel are designed to run
>at a constant rpm (a very small range). As far as I understand, the
pistons
>are different and the ECU has different mappings. Now if asked for sources
>for this info, I have to admit, I do not remember...
I agree.

The ECU program can be easily replaced by one
sold here to upgrade the 90 hp to 110 hp. It
is just replacing the EPROM. I'm sure, the 90 hp
program is available, too.

But still, the pistons are different. Low fuel
consumption at a small revolution range near
by the maximum torque. Isn't it that what you
like to have?

Helmut
'80 Camper