I saw an emailed video earlier today - some american news programme where a load of mad people had put motorbike and car engines on chainsaws - hence the comment about the V8. There was a chainsaw powered by a V8 engine, with a blade about 1.5metres long. It took two people to lift and they did a speed comparison of a BIG log being chopped up.

A normal chainsaw took just over ten seconds. Respectable you might say, but the V8 beast took about a second. Scary.

-- Kev