Hello

I know this is not exactly what you guys are up to, but you might find it
interesting anyway.
http://www.junkyardjet.com/

There are many sites like this. Guys build jet engines out of automotive
turbochargers, usually with something like an old fire extinguisher for the
expansion chamber, and the burner assembly form a household heating oil
furnace to supply the fuel feed and ignition. Lots of them actually working.