It will be a hot time in the junkyard this episode as the Auto Amigos take on the Dirty Drivers in a fast and furious challenge to build a trike powered by a jet-engine. The race will consist of three trips down a one-eighth mile track...one at a time. The team that records the fastest time in any of their three trips will advance to the semi-finals. The Dirty Drivers are building a true jet engine on a lightweight frame. A propane tank will provide the gas and a spark plug will act as the ignition source. The key ingredient will be a turbo-charger from a truck. The turbo charger has two fans that turn in opposite directions. One fan will suck the propane into a combustion tank while the other will suck the heated air out and through a nozzle. If there's time, they also want to build an afterburner which should increase their speed. An afterburner ignites any remaining gasses in the chamber for added thrust. Time is NOT on their side.