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Posted by: Garold Shaffer Oct 29 2009, 09:36 PM

Story: the car ramped up the tire wall, then nose-dived into the turf and flipped lengthwise. The bolted-in roll cage didn't have big enough floor plates and they punched through the floor, completely failing to provide protection to the occupants! Somehow, neither driver nor passenger sustained injury!

http://jalopnik.com/5390929/mustang-crash-gallery//gallery/8

Just another reason why you shuoldn't skimp on safety equipment if you plant to go on ANY track! Take a good look at pciture #8.

Posted by: charliew Oct 29 2009, 09:53 PM

Thats just a bad installation period wether it's welded or bolted. It's hard to tell how that particular roll cage was fastened to the floor. There can be a well fastened boltin cage. It will require a good pad that has a large surface area to spread the load over a large area on the sheetmetal. Bolted or welded if the pad is large enough I think it will be strong enough. In the case of boltin if a equal size pad is on either side of a single wall sheetmetal floor it will be at least as strong, and probably stronger as the weld will create stress at the sides of the weld bead, as a welded to only one side of the same sheetmetal floor.

Posted by: steveherman Oct 29 2009, 09:53 PM

QUOTE(Garold Shaffer @ Oct 29 2009, 11:36 PM)

Posted by: plymouth37 Oct 29 2009, 10:08 PM

This is exactly why I am adding a couple bars to triangulate my head hoops.
Being upside-down in a car sucks enough, why add a broken neck into the equation?

Posted by: SirAndy Oct 29 2009, 10:11 PM

Pic #8, you can see the tube from the cage sticking out the floorpan!

Posted by: carr914 Oct 29 2009, 10:13 PM

Cut the rest of the roof off, put a better cage in it and it's back racin as a convertable

Posted by: Sleepin Oct 30 2009, 01:10 AM

....the only good Mustang is...




a flat Mustang!

Posted by: jt914-6 Oct 30 2009, 06:49 AM

Looks like it happened at Hallett Motor Racing Circuit in Oklahoma. Coming over the rise coming into the "Bitch" turn. He must have hit the alligators at the top of the rise and lost it. Easy to do there......Have instructed there lots of times. He ramped through two tire walls and catch fence. That is a blind rise and you've got to get lined up just right coming over the top....OR things go wrong fast......

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

Posted by: 6freak Oct 30 2009, 09:04 AM

QUOTE(Garold Shaffer @ Oct 29 2009, 08:36 PM)

Posted by: ConeDodger Oct 30 2009, 09:15 AM

QUOTE(Sleepin @ Oct 29 2009, 11:10 PM)

....the only good Mustang is...




a flat Mustang!

Posted by: Rod Oct 30 2009, 04:02 PM

Even scarier than this is the cars that run harnesses in a 'normal' car... In an accident like the above with a normal seatbelt your body can move into the space available and possibly avoid injury - if a harness is worn the body is locked in position, so if the roof collapses you can't move to get out of the any of incoming bodywork..

The amount of cars over here that won't be allowed to run without a cage if you have harnesses is great, but unfortunately it's also a 'moddas' first change, which could easily cost your life..

Think about harnesses in your cars and if they actually make 'life saving' sense..