I too am curious about this engine. According to both Meggala's site and skylinesdownunder.com, the only R33s that had 4WD were the GTR and the GTS-4. The GTS-4 came with the RB25DE engine though, not the DET. The RB25DET only came in the GTS25t, which was RWD.
Quote »i think the guy above u said that the year was 1996 and the model was gtst. curiosity gone yet?[/quote]
I'm still pretty curious to know exactly which model this car came from, since there was no R33 GTS-T :pface
After looking at your photo album, you definitely have a weird oil pan

If this is an RB25DET and it was AWD then I wonder if it was a RB25DE converted to a DET, or if the sites that list different skylines models just somehow left it out.