I have no idea what I am talking about, but anyway a few things I notice when I read those documents.
First thing I noticed is that one engine is referenced just as 160HP (with the engine number) and the other as 160HP (nouveau modele - new model). Also interesting is the different oil capacity 20l the first (which seems to be excessive by the other numbers I can find) vs. 9l the other. Also the weight differences, 16kg empty, 24.5kg loaded.
Just from the weight, and if I had to believe Wikipedia (and here I lose all creditability
), the 890kg would be a DIII, 915kg a DV(a) and 937kg a DVa(ü) (depending on german, french or english Wikipedia
; by RoF store DIII & DVa, both DIIIa engine).
P.S. I guess these are already known, but there is a series of PDF files of a Flight magazine from 1919 available here: Flightlobal Archive
The linked and following PDF pages are about the 200HP Mercedes engine tests issued by the "Technical Departement (Aircraft Production) Ministry of Munitions". For this topic are intresting the following pages comparing 160/180/200HP - but of course, all on captured engines and by british standards. But maybe still interesting with respect to the relative performance.
While not relevant with respect to the Albatros, it is interesting to see the 200HP engine with lower power at low RPM, only equal to the 180HP at 1400 and reacing >210 at 1700rpm
(in the 1919-332ff is a nice long article on the Siemens DIV, even with climb data from Adlershof
If someone feels bored he might find more gems
PPS: Regarding the tests of the Replicas, I'd expect that they made at least some engine test runs to the limits and beyond. And depending when this was done I would also expect that they got some good engine statistics (HP vs RPM) out of those.