# Fabricators/Racers chime in on this

**URL:** <https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858>\
**Category:** Shift518 Automotive\
**Created:** [April 29, 2009, 8:43am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858 "2009-04-29T08:43:59Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![votblindub](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/votblindub/32/6280_2.png) [@votblindub](https://forums.speedlife.net/u/votblindub)\
**Post date:** [April 29, 2009, 8:43am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/1 "2009-04-29T08:43:59Z")

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\*Not my words  
“Planning on adding a roll bar/cage of some sorts to my ride and in doing so was searching all over the forums and came across this piece of sexyness.  
Worst idea ever, was the frist thing that popped into my head but apparently it’s gonging to be full FIA approved and already TUV approved. Is 100% carbon, not some steel or chromoly wraped gig here, with “anti-splinter” technology and is 75% lighter than a steel cage.  
Developed by Oakley Design for 996 and 997’s only at the moment.  
Pretty sweet.”

![http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbarcarbonfibre_rollcage-500x191.jpg](http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbarcarbonfibre_rollcage-500x191.jpg)  
 ![http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbar-357x500.jpg](http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbar-357x500.jpg)  
 ![http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbar400.jpg](http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbar400.jpg)

:ahh:ahh:ahh:ahh:ahh

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**Author:** ![Mafdark](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mafdark/32/6322_2.png) [@Mafdark](https://forums.speedlife.net/u/Mafdark)\
**Post date:** [April 29, 2009, 8:56am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/2 "2009-04-29T08:56:06Z")

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eek, I would be very very wary of something like that. For a few reasons:

1. carbon fiber’s strength is often greater on paper than it is in application… the airbus for an example had a problem with its wings not being able to hold the weight that the computer model said it could. (they did eventually figure out their issue

2. transitions at the base of the cage are most likely done with some sort of bonding agent which while probably very very strong it is subject to many more problems than welds. Everything from shear strength, strength in different humidity, strength in different temperatures (does it get brittle when cold?) etc.

3. Hidden defects. I’m not sure of what the manufacturer uses to inspect the quality of the cage but unless they have an incredibly advanced and expensive technique this would be subject to minor defects, bubbles, cracks, etc which would go unnoticed and completely undermine the strength of the entire system.

with that being said I’m sure if you charge enough money it can be done. Cars like the CGT and Enzo utilize carbon fiber in ways that really pushes it to its limits. of course both of those cars have a million dollar price tag. I would expect an equally expensive price tag on this piece.

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**Author:** ![JClark](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jclark/32/6309_2.png) [@JClark](https://forums.speedlife.net/u/JClark)\
**Post date:** [April 29, 2009, 9:00am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/3 "2009-04-29T09:00:19Z")

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![http://www.lyris-lite.net/summer_scapes/feature_dvnr/simpsons/shudder.jpg](http://www.lyris-lite.net/summer_scapes/feature_dvnr/simpsons/shudder.jpg)

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**Author:** ![stockcarboy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/stockcarboy/32/6303_2.png) [@stockcarboy](https://forums.speedlife.net/u/stockcarboy)\
**Post date:** [April 29, 2009, 9:24am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/4 "2009-04-29T09:24:16Z")

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it looks scary to me theres no dash bar . thats 2 differnt cages the top pic looks scary but the other one we cant see . just keep this in mind .  
 ![http://i166.photobucket.com/albums/u85/VWmama04/Cars/0001.jpg](http://i166.photobucket.com/albums/u85/VWmama04/Cars/0001.jpg)

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**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\
**Post date:** [April 29, 2009, 9:27am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/5 "2009-04-29T09:27:20Z")

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If the FIA/TUV says it’s safe, it’s probably safe.

That’s pretty much the leaders in automotive safety in the world sooo. Yeah.

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**Author:** ![JClark](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jclark/32/6309_2.png) [@JClark](https://forums.speedlife.net/u/JClark)\
**Post date:** [April 29, 2009, 9:31am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/6 "2009-04-29T09:31:14Z")

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The TUV only certifies that things are as safe as stock using reasonable estimates. Since few road cars come with cages from the factory :shifty, they’ve determined it’s safer than not having one… which some smart people will disagree with as well.

I bet the FIA hasnt certified it for very much. Anyone have a cert #?

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**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\
**Post date:** [April 29, 2009, 9:32am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/7 "2009-04-29T09:32:44Z")

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How about you ease up on the CF hotness.

What’s the worst that could happen?

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**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:** [April 29, 2009, 12:39pm UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/8 "2009-04-29T12:39:28Z")

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That cage must have MASSIVe amounts of R&D put into it if it passes FIA certification.

Here’s my input…cages are designed to ABSORD the impact by deformation and energy transferral. Cages give and bend in an impact to reduce the shock load and keep the drivers safe. Good cages are designed to direct the energy of an impact around the occupants.

CF is different. In an impact carbon composite crash structures absorb and dissipate crash energy by self destrucing. Prime example are the nose cones of F1 cars. The composites literally blow apart in a controlled manner, dissipating the energy of the impact as it goes. this cage would have to do the same in one manner or another.

Oakley doesn’t screw around, they do exhorbant amounts of research in their products and I’m sure that this part has just that, but at a HUGE price.  
[http://start.fedoraproject.org/](http://start.fedoraproject.org/)

second point I’ll make on this…I typically build most cages from DOM. The reason being is that DOM, unlike chromoly or CF in this case, can be repaired. In the event of a slight impact, say to the door bars, you can cut/form, bend and repair the cage with new DOM. Chromoly you can’t due to the nature of the material and how it transfers energy and often fracture during an impact. CF…forget it. If you do a small shot to the car in the same manner as above, the cage would have to be completely thrown out. The complete structural integrity of the cage is compromised and 99% of it wouldn’t be visible. In the event of a larger impact, that compromised cage could become projectiles or worse, collapse and turn you into a human shish kabob.

so…point blank if you have the stupid money to spend on such a cage go for it, but be prepared to toss it away in even a small fender bender…

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**Author:** ![6SPD\_S4](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/6spd_s4/32/6326_2.png) [@6SPD\_S4](https://forums.speedlife.net/u/6SPD_S4)\
**Post date:** [April 29, 2009, 12:58pm UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/9 "2009-04-29T12:58:54Z")

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Cage in an Audi A6?

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**Author:** ![1stgen](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/1stgen/32/6288_2.png) [@1stgen](https://forums.speedlife.net/u/1stgen)\
**Post date:** [April 29, 2009, 1:02pm UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/10 "2009-04-29T13:02:16Z")

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Why would you want something so ludicrous? Cars with cages are made to be destroyed…THAT is not made to be destroyed…It’s made to look good…steel is your best friend in a serious rollover or tire wall impact…simple and plain.

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**Author:** ![LKSi](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/lksi/32/6316_2.png) [@LKSi](https://forums.speedlife.net/u/LKSi)\
**Post date:** [April 29, 2009, 2:55pm UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/11 "2009-04-29T14:55:46Z")

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Do you guys read?

Either way… I can’t imagine the price tag of that!

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**Author:** ![votblindub](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/votblindub/32/6280_2.png) [@votblindub](https://forums.speedlife.net/u/votblindub)\
**Post date:** [April 29, 2009, 3:21pm UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/12 "2009-04-29T15:21:06Z")

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> [@6SPD EG"](#):
>
> Cage in an Audi A6?

Oh, no no no no no! I just spotted this little bit on the internets and wanted to see what the rest of you think. Not everything I post is something I plan to install in my car.

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**Author:** ![JiM\_P\_2001](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jim_p_2001/32/6364_2.png) [@JiM\_P\_2001](https://forums.speedlife.net/u/JiM_P_2001)\
**Post date:** [April 30, 2009, 6:35am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/13 "2009-04-30T06:35:20Z")

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I agree with Adam 100%.

My question is…

HOW THE FUCK DO YOU GET IT IN THE CAR???

It has to go in as one piece…

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**Author:** ![votblindub](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/votblindub/32/6280_2.png) [@votblindub](https://forums.speedlife.net/u/votblindub)\
**Post date:** [April 30, 2009, 6:56am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/14 "2009-04-30T06:56:34Z")

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you have to like WISH it into your car :lol  
but yea, thats a good point there, Jim. You think maybe they build it somehow inside the car?

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**Author:** ![JClark](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jclark/32/6309_2.png) [@JClark](https://forums.speedlife.net/u/JClark)\
**Post date:** [April 30, 2009, 7:01am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/15 "2009-04-30T07:01:26Z")

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You can bet the final version will be sold in a few modular pieces.

And someone please tell this guy to double wrap his straps so he doesnt die for a really stupid reason:

![http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbar-357x500.jpg](http://i334.photobucket.com/albums/m429/VOTBLINDUB/rollbar-357x500.jpg)

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**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\
**Post date:** [April 30, 2009, 7:31am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/16 "2009-04-30T07:31:24Z")

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Only double wrap if you see things crawling.

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**Author:** ![RocketPunch](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rocketpunch/32/6429_2.png) [@RocketPunch](https://forums.speedlife.net/u/RocketPunch)\
**Post date:** [April 30, 2009, 7:46am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/17 "2009-04-30T07:46:34Z")

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Thats cool, but honestly probably won’t be in anything I will get to drive in my life time, so I will never really need to find out if it is safe enough. 🙂

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**Author:** ![Jeff\_K](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeff_k/32/6431_2.png) [@Jeff\_K](https://forums.speedlife.net/u/Jeff_K)\
**Post date:** [April 30, 2009, 8:11am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/18 "2009-04-30T08:11:03Z")

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> [@JClark"](#):
>
> And someone please tell this guy to double wrap his straps so he doesnt die for a really stupid reason:

Come on, how else will the harness ‘auto-adjust’ when the reclining seat tilts forward in an accident?

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**Author:** ![JClark](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jclark/32/6309_2.png) [@JClark](https://forums.speedlife.net/u/JClark)\
**Post date:** [April 30, 2009, 8:20am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/19 "2009-04-30T08:20:57Z")

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Or breaks off at the hinge - you’re right. My bad.

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**Author:** ![SRS\_BZNS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/srs_bzns/32/6375_2.png) [@SRS\_BZNS](https://forums.speedlife.net/u/SRS_BZNS)\
**Post date:** [April 30, 2009, 8:55am UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/20 "2009-04-30T08:55:46Z")

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How the fuck do you get into the car with door bars that go all the ay up to the window?

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