EXCELLENT programme yesterday, they had to build a jet powered car in the ten hours. I hadn't watched much of this series, but this was a real challenge.

There is some nice info on the website about the challenge:
www.channel4.com/scrapheap

For the pulse jet engine I suspect that the last 90 degree elbow they couldn't find was helpfully "pointed out" in the scrap heap, since we didn't see him actually finding it!

One of the experts just posted a link on of of my regular newsgroups, there's some nice information and awesome videos:

http://aardvark.co.nz/pjet/

He hopes to build cart and break (or rather "set") the land-speed record for a pulse jet powered vehicle.

Gareth