# Fabricators/Racers chime in on this **URL:** \ **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:** 1\ **Showing post:** 34
**Author:** ![AMD\_IS\_THE\_BEST](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/amd_is_the_best/32/6342_2.png) [@AMD\_IS\_THE\_BEST](https://forums.speedlife.net/u/AMD_IS_THE_BEST)\ **Post date:** [May 4, 2009, 5:49pm UTC](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858/34 "2009-05-04T17:49:49Z")
> [@Need help diagnosing a problem.](https://forums.speedlife.net/t/need-help-diagnosing-a-problem/17599/6): > > 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… Just curious why you linked this in here? On a side note off topic, linux is awesome and Fedora is on of my fav distros. --- _[View the full topic](https://forums.speedlife.net/t/fabricators-racers-chime-in-on-this/243858)._