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This Is Why You Need a Cage On a Fast Track Day Car!

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Old 05-14-12 | 04:23 PM
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This Is Why You Need a Cage On a Fast Track Day Car!

I know I have said it before, but watch this video as to why I believe that every quick car needs a cage to run at the Mosport Grand Prix Track.

http://vimeo.com/42111541

I don't think it truly is necessary at TMP or Mosport DDT, but maybe Shannonville Pro. The car was going just over 190 kmh. Just saying ........

Eric
Old 05-14-12 | 05:09 PM
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he'd have been completely fine without a cage.

There wasn't a scratch on the roof or either door.

Rollovers like that actually have a really, really high survival rate and he'd probably have been completely fine wearing nothing but a seatbelt. Rolling doesn't kill you. Suddenly stopping does.

Obviously a great deal of why he didn't need a cage in this case has to do with luck but this is a bad example.
Old 05-14-12 | 05:20 PM
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your a fool u dont know what would of happend
Old 05-14-12 | 05:32 PM
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if your read the comment. its because SRT makes safe cars. lol
i think im gonna go to the SRT dealer to buy a car (they are safe). might as well go to GTR to buy a safe japanese car lol
Old 05-14-12 | 05:42 PM
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Wow dudes you are really showing you dont know much about structure. Just because the car didnt land on it roof has nothing to do with what Eric was talking about in this post. If that car didnt have a proper cage it would have folded in half while it was bouncing off its nose, tail and sides. The only thing that kept the car together was the structure itself! The cage in a race car doesnt just protect you from roll over damage, it is what lets the car deform to a certain point and then it keeps the car from folding up around you. Here is graphic footage of just how strong a unibody is with no added protection. I know this is overkill, but flipping at high speeds can generate some huge forces. This crash is only at 120mph into a solid object, so add 50 or so miles an hour more and have the car landing on its nose.........................
http://www.youtube.com/watch?v=6dI5ewOmHPQ
Old 05-14-12 | 06:30 PM
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Wow. That reminds me that getting a few more pieces of metal added to mine has been lingering on the to-do list for too long...
Old 05-14-12 | 07:14 PM
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Alan you proved my point!

I'm not saying cages are unimportant - just that rollovers aren't the reason you need them.

Collisions where the other thing doesn't move are what kills people and transmits huge loads into the car. (it's also why HANS devices are important) Rollovers like that generate forces orders of magnitude lower. I'd rather roll a car at 100mph than go head on into a wall at 50. Forces go up logarithmically with speed, so when you lose all of that speed at once instead of small bits here and there you've got a far greater chance of getting hurt.

Most unibody cars are actually quite strong compared to cars from the 50's and 60's, I would think even something like my tinfoil honda probably has a stronger body compared to a '57 bel air even though it has less than half the weight.

Also, head on into a wall at that speed and it doesn't really matter what you've got done to a car, nothing is going to save you. They could have put an WRC spec cage into that focus and it would look nearly as bad.

Safety is all relative - I'm pretty sure that I'm far more safe in my 700hp GTR with no cage than I am at any speed on a bike. I'm still going to put one in at some point, as soon as I can bring myself to sacrifice my back seat.
Old 05-14-12 | 08:07 PM
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So let me get this straight. The car hits the wall head on at 190kmph and flips end over end repeatedly and doesn't need a roll cage?
Old 05-14-12 | 08:40 PM
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If he hit the wall head on at 190kph the car would have stopped cold, not continued down the track cartwheeling through the air. Watch the focus video to see what happens when you hit things head on.
Old 05-14-12 | 09:11 PM
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Originally Posted by 01racing
wow dudes you are really showing you dont know much about structure. Just because the car didnt land on it roof has nothing to do with what eric was talking about in this post. If that car didnt have a proper cage it would have folded in half while it was bouncing off its nose, tail and sides. The only thing that kept the car together was the structure itself! The cage in a race car doesnt just protect you from roll over damage, it is what lets the car deform to a certain point and then it keeps the car from folding up around you. Here is graphic footage of just how strong a unibody is with no added protection. I know this is overkill, but flipping at high speeds can generate some huge forces. This crash is only at 120mph into a solid object, so add 50 or so miles an hour more and have the car landing on its nose.........................
http://www.youtube.com/watch?v=6di5ewomhpq
bingo!!!!!!!
Old 05-14-12 | 09:17 PM
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Originally Posted by Terrh
If he hit the wall head on at 190kph the car would have stopped cold, not continued down the track cartwheeling through the air. Watch the focus video to see what happens when you hit things head on.
Terrh, very few accidents on track are direct head on impacts. The time I pounded the wall at Mosport and knocked it down, I was travelling at around 150 kmh and hit the wall diagonally. Ifthe wall hadn't of exploded in front of me, I may have been severely injured.

Its a free world at Lapping Days. In a slower car or at a slower track, the impacts are a lot less severe. At Mosport, at 200+ KMH, really bad stuff can happen really fast. Think about spinning just over the crest of the hill in Turn 4. You end up drivers door up track. The next car is blind cresting the hill and ......

Do what you want, but I would sacrifice the next monster turbo or swapping in a RB26 to make sure I had a decent chance of surviving. Just wanted to give you guys an idea of what can happen really quickly.

Eric
Old 05-14-12 | 11:11 PM
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I agree with you that bad stuff can happen. All I was saying was that video was a bad example of why you need a rollcage.

And even in a real fast car with no cage, you're safer than the safest bike.
Old 05-15-12 | 12:03 AM
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I'd rather have a roll cage and not need it, than need a roll cage, and not have it.
Old 05-15-12 | 05:53 AM
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im sure no one has posted this video yet

http://www.youtube.com/watch?v=phf_sLQ000I
Old 05-15-12 | 06:24 AM
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Originally Posted by FC3Sdrift
im sure no one has posted this video yet

http://www.youtube.com/watch?v=phf_sLQ000I

no roll cage in the car, he's just got a horseshoe up his ***
Old 05-15-12 | 11:21 AM
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This is really a moot point. A properly built roll cage will help prevent injury in any type of collision whether side, front or roll over. The only time the cage might add danger is if your not belted in when you crash lol.
Old 05-15-12 | 01:04 PM
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At which point it becomes a game. Like putting a Hamster in a ball and punting it around.
Old 05-17-12 | 09:09 PM
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Terrh weren't you the first and only person to be asked to leave a Wosca event for mechanical safety reasons in its 59 year history? Not trying to be mean, just asking.
Old 05-17-12 | 10:35 PM
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I think roll cages are a good thing, I need one in my FC I always here you will have alot of trouble if your insurance company finds out you have one in a street car.But I bet you that guy in the impreza has cages in his cars now
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