I have one in my buggy. It is second hand, but I'm amazed at how good this engine is performing so far compared to my previous (HB .26). It starts so easily. Idles perfectly and is insanely powered for bashing. I don't know how good it would be in a truggy though, which is a lot heavier.

As for the comments on engine temps. I thought that engines run hot when there is more friction due to them running leaner with less oil passing through. I'm not convinced that running with a cool temp of say 190 F would cause excessive wear. If you run it in the freezing snow though that's a different story.