not my account, ------. Talks **** to me again, I dare you...and I'm all roided up too so I hope you're ready. Now please excuse me while I go crop dust my boss' office.

 

There used to be a billboard frame off in the distance one could use as a marker when going CCW through #8. Is it still there?

BTW, I doubt with a hard dog style bolt-in setup that it would punch through the floor of a Miata like that. On the Mustang, it looks like it is just a regular large expanse of floor pan that the hoop is attached to, judging by the upside down picture. On the Miata, it is at the intersection of the vertical section of body right behind the seats, and the horizontal pan that forms the trunk undertray. If you have installed a Hard Dog you know what I mean. That should result in a very strong structure, especially since the vertical section would be loaded in-plane (mostly), and not out-of-plane (like the Mustang floor). Plus, the Miata is much lighter of course.

Glad the driver and passenger made it out OK. It is amazing they were not hurt. The roof crushing and the tearing out of the roll bar must have absorbed a tremendous amount of the energy.

 

 

That thing had a roll bar and still pancaked?!? Holy crap. I'd be showing that photo to every damn forum along with the name of the roll bar manufacturer. Major fail. They should never sell another one.

 

I have seen a old Formula 3000 car hit that wall. He didn't jump it though.

 

the ******* roll bar punched through the floor. lolz.

 

It's a "roll" bar...not a "flip" bar. Big difference force-wise.

The force of swinging a 3400lb vehicle about it's nose is much more than you could possibly design a standalone bar place 10ft out from the axis of rotation to withstand. At that point you should be considering a full cage to spread some of that impact force.

On the fence: I don't think it played much of a roll in flipping the car...they were already digging in for a pole-vault maneuver.


Good to know those guys are ok...can't believe it...but happy nonetheless.

 

Like I alluded to, the roll bar clearly should have had larger base plates (doublers) to distribute the force over a larger floor pan area and/or been tied into the frame (unibody) rails. No reason why it should have failed just because it was a 'flip' and not a 'roll'. Rolls can get pretty violent as well. But I agree a full cage would be even better. The load would have been distributed over twice as much area, all else being equal.

I think the fence/tire wall induced the airborne-ness that created the nose down orientation resulting in the nose plant.

 

The Boss Frog Double brace "saddles" the transmisstion tunnel, behind the seats up top and on the outer angle al-la Hard Dog.



I don't even want to know what it would take to make that punch through the bottom of my car.

 

No joke... Don't drive off the edge of a 10-story parking garage and you should be fine

 

I can't imagine the compresson on the driver during a crash like that, I'd have never expected a mustang to flatten out like that with a rollbar. I'll be showing this to my friend that welded in his own rollbar and did a terrible job with a buzzbox mig.

 

Nice flip!