Check this out!

http://www.funnypub.net/Amazing-Videos/V8-...azing-Work.html

Pretty cool! But it looks like it may have some undocumented heat related problems...

Definitely cool. I remember when I was a kid we had these toys called 'Air Jammers' that you attached a little air pump to. Then you could start the little 1 cylinder air motor and they would go several hundred feet. One of the cooler toys from back in the day... I don't think it's legal to make toys now that don't have a battery in them

hmm... so how do we build it? it looks like the firing order is 1-2-3-4-5-6-7-8 and one piston feeds the next.