Just thought I'd mention that the Isuzu diesel car engine I have is rated 51 hp at 5000 rpm. Does that qualify as fast? It runs quite happily at 1500 rpm turning a 10kw generator now.
yup, be it not very efficiently though. Isuzu always has made a nice small diesel, Cat use them in there skid loader, that is where I have been running into them as of late.