The fun ones to watch for me were the torture tests. Cummins takes their engines, no oil but the assembly lube. Hooks them to the test cell dyno. Set them at 1800 RPMs, run them 24 hours at load, which draws about 25 pounds of boost, or until they blow up, whichever occurs first. Most of the time, the engines make it to the 24 hr mark. The things are junk by that point for sure. And rattling themselves apart.
