# Indoor Tractor Pulling Gone Wrong **URL:** \ **Category:** Shift518 Automotive\ **Created:** [January 27, 2011, 8:52am UTC](https://forums.speedlife.net/t/indoor-tractor-pulling-gone-wrong/256640 "2011-01-27T08:52:51Z")\ **Posts on this page:** 1\ **Showing post:** 18
**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\ **Post date:** [February 2, 2011, 4:38pm UTC](https://forums.speedlife.net/t/indoor-tractor-pulling-gone-wrong/256640/18 "2011-02-02T16:38:37Z")
> [@What causes a muffler to EXPLODE?](https://forums.speedlife.net/t/what-causes-a-muffler-to-explode/39334/12): > > The energy to toss the block up in the air comes from the energy that is stored in the form of compressed air in the cylinders. I will admit that was a pretty impressive block toss! These diesels are probably 18:1 at 100 psi, with big displacements. There really is a lot of energy there. > > As for the block failure, damn that was cool. I watched the video several times. I’m inclined to think the failure is from fatigue of the block. When your up at crazy alternating stress levels, things can fatigue pretty quickly. > > It could be a big ignition in the crankcase (2 stroke) but I doubt it as that would have sent a lot of shrapnel around and into the audience, not that a block flying around is not dangerous enough! > > Awesome vid, thanks for posting, plus rep! :thumbup This^. you’d think they’d start mandating kevalr straps or similar like other sanctioning bodies do for blowers and crap. ka-boom. love it. --- _[View the full topic](https://forums.speedlife.net/t/indoor-tractor-pulling-gone-wrong/256640)._