In this next video we have a tuned 2008 Shelby GT500 having a bad day on a dyno. And by having a bad day we mean engine detonation at 800 HP.
We all know that upgrading a car, especially when you’re pushing limits like 800 HP, means assuming some risks, and even though this Shelby GT500 has ‘behaved’ well in the past, through its many dyno runs, drag races and road course racing, this time it all went wrong.
As the YouTube video poster explains, the reason why this Shelby GT500 blew up on the dyno was a stretched Rod bolt.
Watch the video with the Shelby GT500 experiencing an unfortunate engine detonation at 800 HP after the jump. 

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Video: Shelby GT500 Engine detonation

Source: YouTube