There is some correct information in this thread and some incorrect information.
First off you do not want to put a roll cage in your car if you are driving it on the street without a helmet. It’s highly likely that your head will impact the cage in a crash even if you have a 5 point steering wheel. Usually on the drivers side hoop. This can cause some pretty serious brain damage. NOT a good thing. Sure you can add the protective foam, but realistically that is only designed for low speed bumps when you’re getting in and out of the car. It will not protect you in any way during a crash. That said, reasons I can see if having a cage in your street car.
- Your car runs a lot enough time in the 1320 that you require one to run a castrol
- Your an active drifter, the chance of side impact is pretty high and usually the side of a car is the weakest point. This is especially true of older cars.
- You use that car in a class of competitive racing that requires a cage…
In all honesty I think we can say that your sentra is not going to be doing any of these things. I could be wrong, and if I am I would love to see the car. I havent come across one yet.
TravyPoo commented that a cage will ruin your cars crumple zones… This is actually incorrect. Crumple zones are designed into the car outside of the passenger compartment. The cage only reinforces the inside of that section of the car from a safety standpoint. It may reinforce the rear strut towers so the rear crumple zones may be slightly compromised. Usually getting rear ended isn’t much of a issue cage wise… Also, while many people will argue this, a properly designed cage should be boxed at its mounting points to allow for added shock absorbance during a high speed impact. The reason for this to help prevent soft tissue damage. A rigid cage may protect you from direct impact and make the car a lot stiffer but your body isn’t much good to you when your brain goes splat against the inside of your skull.
Insurance companies usually have a policy of not insuring cars that have been modified specifically for racing. While some may argue that they put the cage in for show reasons I have a hard time believing they would do so if they were not planning on pushing the car at some point. I happen to agree with them about this. A good way around this is to get your car insured for an appraised value. A good idea for most of us that have highly modified cars anyway considering the value of the aftermarket parts we have installed. My civic is insured for an appraised value. It only increased the premium by $100 a year. An investment that is worth it. Considering if the car was ever stolen I would get $20,000 instead of 2 or 3 thousand. It’s a good idea to ask your insurance broker about what kind of coverage they have. Some companies will void insurance based on something as small as lowering the car. It’s better to know what you’re paying for but many people don’t ask because they are worried about increased insurance costs.
ALSO: is removing the rear seats, or, lightening out the interior illegal either?..
Like, I know Carbon Fiber door panels are popular, (and CF Doors, Trunks, and Hoods)
Interior is all fair game right?..
Now onto this part of the question.
While removing most interior parts is not illegal, there are a couple exceptions. I actually have done some illegal modification to my civic, considering it’s a track car. It’s unlikely that many cops would call it on me but I have removed the 3rd brake light from my car which was mounted in the rear window. Technically doing so is illegal.
I have also been pulled over several times in a car with stripped interior and while it’s not actually illegal I have had cops get on my case about it. I believe they are mostly doing this because they know why I would do it. For racing. But the biggest thing I have found is that they tell me they can tow the car because I have removed the rear seat belt assemblies. In all honesty no one is going to be sitting back there… There are no seats… and no interior panels… hell my car doesn’t even have a carpet or the sound deadening tar that it should have under that. But I still get hassled about it. If you decide to do so be prepared to have this kind of thing happen to you.
As for carbon fiber. They are legal, at least at this point. Realistically the carbon fiber door panels are just that panels. They replace the outer skin of the door. Since the crash protection is found inside the door there shouldn’t be any issues with them. Hoods and trunks on the other hand do not need to pass any kind of crash testing. Personally while I have never seen anything overly dangerous happen during a crash. I would still use hood pins in the hood to help hold it in place. The worst I have seen happen in person is a hood latch break off in the winter time and the hood fly back and shatter the windshield. It’s still dangerous, especially at 170+ KM/h. On top of that if you take the hood off your car and remove the skeleton from the underside of the hood, leaving just the outer shell and frame your stock hood would likely be just as light or lighter then the majority of carbon fiber hoods on the market today. It’s also free. For your trunk you could also do the same thing and weld it closed or you can get race locks for the outside if you’re serious about racing. Removal of all the latch and related cables could net you nearly 10 pounds of weight reduction. I have found that lately carbon fiber panels are look down upon by a lot of people in the touring car series. Just because of the added cost for no real return on weight reduction… I know that CF stuff is still pretty and goes over well for most street tuners. =) Hope this helps.