ouch! dyno explosion

[turboshed]

this is why dyno rooms have reinforced glass!!
http://www.youtube.com/watch?v=aUkXriHjQeI&feature=related]http://www.youtube.com/watch?v=aUkXriHjQeI...feature=related

[samol]

Whhooooopppps, bet that spoiled somebodies day, ouch! Ray

[Lemon-Ade]

I will get the mop! Lol

[littlegems4x4]

Jeez, that went with a bang didn't it

[capri v8 driver]

http://www.youtube.com/watch?v=vq5cjNhN_po]boss%20557%20blowup

There isn't much information on this video, but we do know what the catastrophic failure was. This is a Ford BOSS 429 motor, stroked out to 557 cubic inches. As you might imagine, this went along with a number of other engine improvements that pushed the engine to over 850 horsepower. This particular dyno run was the 7th of the day, and made 850 horsepower just before the explosion.

The failure of this motor was due to the stock BOSS 429 flywheel. The builder did not wait for the proper billet flywheel, and on the 7th run the flywheel exploded. The exploding flywheel went through the bellhousing (blowing it up), cracked the engine block (ruining it), went right through the headers (destroying those), and then went through a wall and into the next room. That's one hell of an explosion.

it looks like it may have even knocked the engine right off of the stand. While it all makes for a great 30 seconds of entertainment, i can't help but feel a bit bad for the fellow who put all the work (and money, around $40k according to the owner) into this motor. Patience is the lesson of the day. can you imagen when a flywheel explodes in your car?