Roll bar/rollcage legality
07-03-02, 11:24 AM
#27
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Originally posted by 87GTR
wow!!!!
this cage would be over kill on the street.
I really like the hoop and the back. and the camera mount too. but bar that goes infront of knees I dont think I could take that
but for a track car it would kick much BUTT!!!!
how much do you think your cage weighs?
wow!!!!
this cage would be over kill on the street.
I really like the hoop and the back. and the camera mount too. but bar that goes infront of knees I dont think I could take that
but for a track car it would kick much BUTT!!!!
how much do you think your cage weighs?
Um, so you don't think that the other mods on that car are overkill for the street?
The bar in front of the knees is necessary to square the front hoop. I have the same thing on my lesser-built 1Gen. The bar between the rear strut towers is also very important, and offers much more strength than just having the rear bars welded to the thin trunk sheet metal. Some people mount the bar higher on the strut tower, but I like it where it is. I don't know how much the cage weighs by itself.
Originally posted by blu_gxl
whoa evil, did you cut the side beams out of the doors? i guess the cage offers better side impact support but man that's some weight savings!
whoa evil, did you cut the side beams out of the doors? i guess the cage offers better side impact support but man that's some weight savings!
BTW, I didn't have anything to do with the labor or design of that roll cage. SPiN Racing subcontracted it out to Creative Motorsports, which specializes in movie stunt cars and road race cars.
07-03-02, 11:35 AM
#28
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Originally posted by Evil Aviator
The cage in that picture is more for drag racing where there is very little chance of side impact. Those side bars appear to be more for support of the main hoop rather than impact protection. My roll cages have NASCAR-type side impact protection for SCCA racing. The bars in this picture were designed and installed by a pro, so they are a good reference for height:
http://home.tampabay.rr.com/spinraci...ell/index.html
Yes, it's a little difficult to clear when entering and exiting the vehicle, but it's not all that bad.
The cage in that picture is more for drag racing where there is very little chance of side impact. Those side bars appear to be more for support of the main hoop rather than impact protection. My roll cages have NASCAR-type side impact protection for SCCA racing. The bars in this picture were designed and installed by a pro, so they are a good reference for height:
http://home.tampabay.rr.com/spinraci...ell/index.html
Yes, it's a little difficult to clear when entering and exiting the vehicle, but it's not all that bad.
Any, I agree that a 4 or even 6 point rollbar is fairly safe, assuming a decent seat, and careful provision for distance between the seat and the bar.
However, cages like yours and mine should be strictly verboten. I'm 100% sure that you could easily contact your A-pillar/Halo bar in a side impact, regardless of harnesses.. Hell, my head with helmet, just about rests on that bar.
PaulC
10-21-02, 01:39 AM
#30
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RS4,
In simple terms, you don't keep your windows
In Evil's case (and mine as well), the door bars extend into the inner door panel, we remove all the windows, the motors, and cut the inner panel away..
So if you want working windows, you can't go with this style of protection. In my case, no big deal, even while racing in the rain, I have to keep both windows down anyway..
PaulC
In simple terms, you don't keep your windows
In Evil's case (and mine as well), the door bars extend into the inner door panel, we remove all the windows, the motors, and cut the inner panel away.. So if you want working windows, you can't go with this style of protection. In my case, no big deal, even while racing in the rain, I have to keep both windows down anyway..
PaulC
10-21-02, 03:04 AM
#31
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Thanks thats how I thought it was but it kinda threw me off when he said.
"The interior side of the door was cut away, but everyting else was retained."
* Can you give me a guestimation on how much a roll cage like that would weigh? Or how about the one in your car? Do you have any pictures? I saw your videos they were awsome.
"The interior side of the door was cut away, but everyting else was retained."
* Can you give me a guestimation on how much a roll cage like that would weigh? Or how about the one in your car? Do you have any pictures? I saw your videos they were awsome.
Last edited by Rs4Racer; 10-21-02 at 03:07 AM.
10-21-02, 10:15 AM
#32
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Man, I've also heard that a lot of rollbars are just cosmetic. Like, they aren't actually built to take the weight of a car rolling over. So how do you know what's real and what isn't?
10-21-02, 03:41 PM
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Originally posted by JumpyRoo
Man, I've also heard that a lot of rollbars are just cosmetic. Like, they aren't actually built to take the weight of a car rolling over. So how do you know what's real and what isn't?
Man, I've also heard that a lot of rollbars are just cosmetic. Like, they aren't actually built to take the weight of a car rolling over. So how do you know what's real and what isn't?
10-21-02, 04:24 PM
#34
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Well, buying a cage from a reputable cage builder is your first step.. You're better off finding a chassis builder in your area to custom build a cage for you, but you'll need the rules for the type of competition you want to get into, to make sure you comply with all the rules in your class..
For example, NHRA rules are very different from SCCA rules.. In NHRA, until you run a certain ET, you don't even need a roll cage, after 11.99 you need a 5 point roll bar, and after 10.99 you need a full blown roll cage. In SCCA club racing, no matter what you need a cage, of a certain tubing size (depending on the weight of your car), and it can only attach to the car in a certain number of places.. As classes go up in cost and complexity, the cages get more complicated as well.
If you have questions about a particular cage, we can help you decide if that will work for you.. I guess the first question you should ask the cage manufacturer is, what sanctioning body is this cage approved for? If they kinda hem and haw, it's not for you.
PaulC
For example, NHRA rules are very different from SCCA rules.. In NHRA, until you run a certain ET, you don't even need a roll cage, after 11.99 you need a 5 point roll bar, and after 10.99 you need a full blown roll cage. In SCCA club racing, no matter what you need a cage, of a certain tubing size (depending on the weight of your car), and it can only attach to the car in a certain number of places.. As classes go up in cost and complexity, the cages get more complicated as well.
If you have questions about a particular cage, we can help you decide if that will work for you.. I guess the first question you should ask the cage manufacturer is, what sanctioning body is this cage approved for? If they kinda hem and haw, it's not for you.
PaulC
