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Ford GT500 destroys dyno and itself

i'm guessing something in the dyno itself (like a bearing or something) broke and the thing just blew up. material/manufacturing defect as opposed to overload, i'd guess.
 
do they normally stand on the throttle that long like that though? it looked like they were going for a max top speed, but i dont see why (no wind resistance, so whats the point?)
 
...that was pretty sweet. I feel for the owner, but I gotta laugh at and understand the YEEAAAHH! cheers when he wrecks the dyno.

Is that the new 660hp one? Stock? I dunno how they sound, but that thing seems pretty mean. And I'm betting a portable dyno like that is intended more for doing shits-and-giggles dynos on Joe Schmoe's 300hp muscle/pony car rather than anything that beefy. Wonder if he tried doing that pull in his top gear or something? Those rollers might not be intended to spin that fast.

edit: as far as 'why top speed,' it could've been to see where the car was geared out at...safer than trying to see if you're gearing-limited on the interstate, I guess. The operators could also just be dumb...'whoops, it's still spinning out on the rollers...throw it in sixth!'
 
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Actually, look at the strain on that shitty tie-down...I wonder if the car just broke loose.

Sure looks like an almost Hollywood-style random electronics explosion, though. Like when someone shoots a random computer and it apparently sets off the bundles of sparklers and firecrackers that computers are obviously made from.
 
The wheel stopping suddenly is a bit worrying, but maybe the car is okay? Comments indicate the car was damaged.
 
LTC8K6 said:
The wheel stopping suddenly is a bit worrying, but maybe the car is okay? Comments indicate the car was damaged.
Click to expand...

Seriously? 😛

The rear suspension is broken. Check out the camber on the back wheel when it comes to rest. That might be cheaper to fix than what I bet it did to the rocker panels, though. Damaged plastic bumper cover and sideskirts are a given, but I bet it did more than that on the sides.
 
Looks pretty clear that the tie down didn't go before the dyno did. The GT500 stayed pretty stable until the dyno blew and jumped out from under it.
 
At around 0:55-0:56 something parts company with that affair, and then a second later all hell breaks loose. Or maybe it's just a wisp of smoke of something that vaporized in the dyno.
Probably a bit scary if you're the driver 😀
 
Based on the way it turned I would guess either a mounting bolt came loose or something froze up on the portable dyno

Love the first comment
So that's hows the dynos became extinct.
Click to expand...
 
My guess is the dyno wasnt level. you can see the wheel at the bottom right corner spinning off the ground right before it explodes. Probably putting extra stress against a bearing that then decided to let go.
 
Here's the original clip in 1080p on Youtube.

http://www.youtube.com/watch?v=zfNq8uPIQ1k

There's someone in the background that points out something to a guy in a grey shirt who then points it out to his friend and they both back away quickly just before it blows up, so something must not have looked right.

The top comment:

The dyno was french, it surrended.

Hilarious.
 
phucheneh said:
...that was pretty sweet. I feel for the owner, but I gotta laugh at and understand the YEEAAAHH! cheers when he wrecks the dyno.

Is that the new 660hp one? Stock? I dunno how they sound, but that thing seems pretty mean. And I'm betting a portable dyno like that is intended more for doing shits-and-giggles dynos on Joe Schmoe's 300hp muscle/pony car rather than anything that beefy. Wonder if he tried doing that pull in his top gear or something? Those rollers might not be intended to spin that fast.

edit: as far as 'why top speed,' it could've been to see where the car was geared out at...safer than trying to see if you're gearing-limited on the interstate, I guess. The operators could also just be dumb...'whoops, it's still spinning out on the rollers...throw it in sixth!'
Click to expand...


I have seen a couple of really close calls even on big dynos run by legit shops. I saw a m5 that was strapped down via the aluminum lower control arms... An old muscle car that was strapped down via the bumper.. Yes I know older bumpers are more solid, but it's still not the right way to do it.


I have had two cars dyno'd. Both times I was under the car with the tech.
 
It was suspected that they were doing a top speed run and they oversped the dyno to failure. Once again, speculation though, because those rollers sounded to be turning awfully fast.
 
_Rick_ said:
At around 0:55-0:56 something parts company with that affair, and then a second later all hell breaks loose. Or maybe it's just a wisp of smoke of something that vaporized in the dyno.
Probably a bit scary if you're the driver 😀
Click to expand...

I think it would have been even more scary being a bystander.

Still, I lol'd at the video. :biggrin:
 
What's a typical 'speed limit' for a dyno, anyway? You can do pulls in any gear, so long as the computer knows the ratio, right? I've always assumed 1:1 (3rd in a 3 or 4 speed auto, 4th in most manuals) was the norm.
 
phucheneh said:
What's a typical 'speed limit' for a dyno, anyway? You can do pulls in any gear, so long as the computer knows the ratio, right? I've always assumed 1:1 (3rd in a 3 or 4 speed auto, 4th in most manuals) was the norm.
Click to expand...

I don't know that it was a "speed limit" per se, but more of the extended run time at high speeds that may have caused it. Dynos are made for short bursts, not extended time.
 
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