Well he says he has a 92, so assuming its stock still, he either has the R150F, A340F, A340H, a W56, or a G58...
In less its a diesel.. then I dont know.
Edit: Looking at his other posts. He has a 3vze. So its either either the R150F or the A340H. Both of which can stand up to plenty more power. Comparable to the AX15 and the AW4 that came in heeps.