Dear Leo Etgen,
I have written about the increased power of the BMW 801 D-2 engine "Erhöhte Notleistung" a short description. You can read it here:
http://www.cockpitinstrumente.de/arc.../Dokumente.htm
Please go to M -Motoren- and then to "BMW 801-D Leistungssteigerung"
Best wishes
Dietmar Hermann