00:00This engine fits in a suitcase but destroys most supercars.
00:03It's a NASCAR Cup Series V8, 5.86 liters, 750 horsepower.
00:09It revs to 9,000 RPM.
00:11The whole unit is roughly carry-on luggage-sized.
00:14That power-to-size ratio beats most fighter jet auxiliary units.
00:18Here's where it gets wild.
00:20After every race, officials seal the engine shut.
00:23Teams cannot touch it, not even once.
00:25Engineers must build it to survive 500 miles with zero adjustments.
00:31It's the most scrutinized mechanical object in sport.
00:34Now, the wow moment.
00:36The heat inside would melt the aluminum block in seconds.
00:40Only precision oil cooling channels prevent total destruction.
00:44NASA uses the same thermal mathematics for spacecraft re-entry heat shields.
00:49Racing engineering and space engineering, same maths.
00:53Follow for more mind-blowing facts every day.
