RollCages

[Devo]

So We're looking to get some Rollcages made up for us and Muss asked me what style I'd like, I honestly had no clue! So if you guys have Cages in your cars would you mind posting them up? Just to get an idea of what other people have done. Rack em'!

[mcfly]

Because my current chassis has not made it to that stage yet I do not have a picture to show you. I do how ever have a 12 point 4130 weld in cage sitting in edmonton collecting dust :p

What do you need the cage for? That typically dictates what the cage will look like and what materials used.

[Devo]

The cages would be used for drifting practices at local tracks and we'd like to enter some competitions in the future once our cars are more built up in such places as Castrol Raceway and places in B.C., Also maybe some auto cross events at airstrips.

[j-ran]

Formula D Requires a 6 point weld in or bolt in roll cage eg:

http://drifting.com/FD_Rules_1.gif

Rules can be found here: http://www.drifting.com/Formula_Drift.php

[mcfly]

Formula D Requires a 6 point weld in or bolt in roll cage eg:

http://drifting.com/FD_Rules_1.gif

Rules can be found here: http://www.drifting.com/Formula_Drift.php

I don't understand how that can be classified as a 6 point. At least in that picture it is not a 6 point.

If you make a 12 point cage for nhra you will be good to 8.5 quarter mile.

[j-ran]

sorry, they require a 6 point, I think that is the reccomended cage.

[Supraclean]

Yea I would rather just get 12 point and be done with it. Now to round up another 5 grand for seats,cage and harnesses.

[Skym]

Missing gussetts to A pillar, B pillar from rollcage in that diagram.

Look at V8 supercars, as that's how a rollcage should be done, as they have bars to stop tyres after coming through front window, etc.

Some other idea's -

http://www.rollcage.com.au/rollcage.html

[89gtr]

http://i19.photobucket.com/albums/b157/JayD_25/sky15.jpg
http://i19.photobucket.com/albums/b157/JayD_25/sky11.jpg
http://i19.photobucket.com/albums/b157/JayD_25/sky12.jpg
http://i19.photobucket.com/albums/b157/JayD_25/sky13.jpghttp://i19.photobucket.com/albums/b157/JayD_25/sky14.jpg

http://i19.photobucket.com/albums/b157/JayD_25/sky10.jpg

here are some pics of the cage that is my gtr.
it is a bolt in cage,with white foam padding around it.
i left the rear seat bottom in the car,there is still room for one to sit behind the drivers seat,with a seat belt.
i like the way the cage fits tight against the a-pillar.it does not block few when turning at all.keep in mind if you are gonna build/weld cage in.

[Stefan_001]

I have a 20 point bolt in roll cage that might be up for sale. You can weld it in if you want.

[Shadao]

what i dont understand is why use bolt in cages? it seems to me, my own personal opinion, that bolt in cages look less safe... and not as clean when everything is in the car...

are bolt in cages cheaper? or something

[mcfly]

They are easily removable and if constructed properly would be just as strong.

[Devo]

I seem to liek the idea of having a bolt in rollcage I like 89'GTR's rollcage and good point on the view factor cuz that was one thing I was worried about was space inside the cab for the driver. But hey when are Drift cars suppose to ride like a Bentley..I'm assuming with a weld in cage you have to remove all the upholstery and cannot just cut out a hole where the points will be welded in thats a bit larger to give room for the welder and so it doesn't go up in smoke.

[GRIP]

If you use a weld in cage you will have to remove the interior, you can put some of the interior back in, but if you need a weld in cage then the interior is more of a fire hazard than any thing. In my opinion once you have a proper welded cage (12 point+) the car should be a track only car, with that many tubes close to your head you should always wear a helmet in a set up like that.

I use a 7-point bolt in cage; I just wanted a bit more rollover protection for my little mountain adventures (skylines have a tin foil roof). I think a 7 point is good for a street car, the tubing is far enough away from you head that it will not explode like a tomato when you hit some thing. Also with any form of a roll cage you should never allow any one to ride in the back even if you can still get the back seats in there.

[Stefan_001]

I drove my car on the street with the 20point lol I was lucky my recaro seats were low. The shop I hang out at build tube chassis cars all day long and they can make me a 8 point cage that would be rated for 8.0 seconds for the 1/4mile and I could even have back seats with a removable harness bar. chassis stop ftw

[mcfly]

I drove my car on the street with the 20point lol I was lucky my recaro seats were low. The shop I hang out at build tube chassis cars all day long and they can make me a 8 point cage that would be rated for 8.0 seconds for the 1/4mile and I could even have back seats with a removable harness bar. chassis stop ftw

well that is interesting considering you require a 12 point cage for sub 9.99.
8 point roll bars will certify for anything slower then 9.99

[Zacho]

I've always pondered the idea of running a "half cage", not sure what to call it but only the back half of my car would have the bars. Not all too interested in having steel tubing 3 inches away from my dome.

Lets further discuss -

Cages/Rollbars in streetcars???

[j-ran]

hmmm, you don't want to have to wear a helmet to drive around town, that's for sure.

[Stefan_001]

a half cage is a waste and mcfly Im pretty sure there NHRA cerified since the brother from the cahssis stop race there street 2JZ S14 that ran high 8's with a 8 point cage and full interior but I might be mistaken for ontario rules.

[mcfly]

a half cage is a waste and mcfly Im pretty sure there NHRA cerified since the brother from the cahssis stop race there street 2JZ S14 that ran high 8's with a 8 point cage and full interior but I might be mistaken for ontario rules.

nhra rules are the same everywhere as nhra makes them.

http://www.nhraonline.com/contacts/tech_faq.html

[Kras]

I've always pondered the idea of running a "half cage", not sure what to call it but only the back half of my car would have the bars. Not all too interested in having steel tubing 3 inches away from my dome.

Lets further discuss -

Cages/Rollbars in streetcars???

http://www.skylinesaustralia.com/forums/uploads/1201210587/gallery_462_50_86074.jpg

I like the idea as well, something like this is what you mean right

then a harness bar could still be fitted etc.

[j-ran]

^ wouldn't that be considered more of a "roll bar" than a cage?

[Allan74]

I've always pondered the idea of running a "half cage", not sure what to call it but only the back half of my car would have the bars. Not all too interested in having steel tubing 3 inches away from my dome.

Lets further discuss -

Cages/Rollbars in streetcars???

I sometimes find myself in the same boat......

At the end of the day, I don't care what I am certified for at the track, as my car is a Street Car first and Foremost. I would however like to add a little 'protection' in case of a rollover on the highway and a half cage or 'glorified roll bar' with back braces into the back seat would provide me with just the peace of mind I am looking for. My back seat will never be used, so I do not mind 'tubing it up' back there.

I too am not comfortable with having steel bar near the side of my head driving around town.....just another thing for me to bash my head on getting in and out without a helmet on.

I would do something like this, with low front reaching supports
(but a beefy custom built weld-in.....not a 'JDM Drift' wanna-be bolt-in piece of crap)

http://www.rhdjapan.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/52346/Image/Normal/Image1.jpg

Not really good for anything....not going to get any type of certification, but it will help in a roll over on the road like I said.

Allan

[89gtr]

http://i19.photobucket.com/albums/b157/JayD_25/rx7.jpg

here is a "roll bar" that is in my brothers fd.
its not a full cage,but more like a brace for your body,much like a strut tower bar.

[GRIP]

"not a 'JDM Drift' wanna-be bolt-in piece of crap" .....at least they have A pillar support unlike the roll bar, most of the rolled skylines Ive seen have flattend A pillars

[Allan74]

"not a 'JDM Drift' wanna-be bolt-in piece of crap" .....at least they have A pillar support unlike the roll bar, most of the rolled skylines Ive seen have flattend A pillars

I didn't mean to offend anyone.......I was just making a comment.

A bolt-in 'JDM' cage is pretty much useless for a roll-over or most crashes that would warant a cage....that is, unless all you really want to achieve is some added chassis rigidity (the most common advertised benefit) and to look 'cool' while drifting in your 'race' car.

[Kras]

Allan I really like the one you posted. The only problem I see with is is the bars that go past the door openings, I might be wrong but I remember hearing somewhere that is illegal for road use - I could be wrong though.

[Allan74]

..... I might be wrong but I remember hearing somewhere that is illegal for road use - I could be wrong though.
Well that sucks if that's true...... How/Where can someone look into what is 'legal' for street use ?

[Rapier46]

im thinking about getting a 4pt for my gtr. simple, not in the way, keep the rear seats if i do it right. it'll help in case of roll over. after being in an accident, i think its worth it.


i got rearendd in my GTS, i was almost completely stopped, he hit my right rear corner, and did not feel THING in the morning. he was doing 70. my gf got whipped around pretty bad. she was sore in the morning.

I was sitting in my bride bucket. i think 4 pt+comfy bucket seat FTW and extremely safe. you'll NEVER ....EVER get a ticket for having a cage in your car. as long as its not too extreme.

[Zacho]

Thought bolt-in wouldn't be my 1st choice, it seems like a properly installed, properly built bolt in seems to be equal to that of one welded in(?). However, I won't consider any sort of door bar because it is a street car.

I express my curiosity about getting at least the back half done, because as you might know my car does not have a B pillar. I will continue to explore my options though.

[Zacho]

This is what back half I'd want to run(I am 4 door)...

http://i63.photobucket.com/albums/h160/Mathieu1989/DSC04193.jpg

Some more pics for ideas..

http://i441.photobucket.com/albums/qq139/Royal_T_album/RoyalT76.jpg
http://media.ziptied.com/members/files/2/1012081528.jpg
http://i31.photobucket.com/albums/c391/TurboDrifterZar/IMG00024.jpg

[DarkCaporaL]

Allan I really like the one you posted. The only problem I see with is is the bars that go past the door openings, I might be wrong but I remember hearing somewhere that is illegal for road use - I could be wrong though.

Well that sucks if that's true...... How/Where can someone look into what is 'legal' for street use ?

You'll have to look up your province's regulations. I know for a fact in Quebec it's illegal if it blocks the doors even slightly (like shown in Allan's diagram). They say it compromises the "structural integrity" of the car (BS if you ask me). I am not sure if they enforce it though.

Your best bet is just to call up your local police department, they'll tell you right away.

[Skym]

How/Where can someone look into what is 'legal' for street use ?

Motorsport authority. FIA rules should be the same in every country.

Canada's version is ASN Canada FIA -

http://www.asncanada.com/

As far as I know halfcages are usually road legal in most country's and don't need a log book. Road legal full rollcage needs motorsport authority log book (events attended) and attending a certain amount of events per year.

[mcfly]

FIA has nothing to do with street car rules in Canada, where this pertains to.

[superdaveosbourne]

I know this only applies to Ontario, but there's nothing in the HTA with regards to cages. Depending on the construction of the cage, cops might be able to charge you with "equipment obstructing view", but I can't really see anything else.

[GRIP]

I didn't mean to offend anyone.......I was just making a comment.

A bolt-in 'JDM' cage is pretty much useless for a roll-over or most crashes that would warant a cage....that is, unless all you really want to achieve is some added chassis rigidity (the most common advertised benefit) and to look 'cool' while drifting in your 'race' car.

Ha ha no offence taken Allan, lets see

- same type of tubing used on both
- what will break first a hardened bolt or a weld?

I don’t see the point in a weld in half cage unless you don’t have a B-pillar like Zacho. Either way every one has their preferences and needs depending if they want to run at a track / strip /sub 9.99 or sanctioned events

And no its not to look “cool” for me, most of the places I drive there is no guard rails, one little mistake and it could be rocky ride down the side of a cliff.... will a bolt in cage help?... who knows, its better than nothing

[Allan74]

.... will a bolt in cage help?... who knows, its better than nothing
That's exactly how I feel about a half cage ;)

[mcfly]

I want this just to look cool

http://www.wolferacecraft.com/images/Install%20Pics/mus25-2/fx25210.jpg

[Rapier46]

i had a 6pt in my GTS. was pretty cool. 4pt max for my gtr. very safe and doesnt take up much room.

[GRIP]

Very true, what made me decide on a 7 point over a 4/5 point (I seriously considered one) was a pic I saw of a rolled R32 (trying to find it again) that had the windshield and A pillars / roof mashed into the cabin but left the B to C pillar section dented/scratched but relatively undamaged.

Either way, extra protection over factory is all ways good;)

[Allan74]

I want this just to look cool

As long as a monster 4-in-1 Tach is mounted somewhere in there, you will be ok ;)

[Devo]

I found this diagram on Driftwest, it was designed to meet the DMCC standards and formula D..supposedly.
Muss if you took out the side bars and welded in the rest this would give you an idea of what we'd more than likely be looking for.

[mcfly]

Ha ha no offence taken Allan, lets see

- same type of tubing used on both
- what will break first a hardened bolt or a weld?



This depends greatly.

Assuming the cage was welded properly and is sound the weld will bend with the metal and the heat affected zone just on the outside of the weld will break first. But this is after a huge twist/pull.

I would prefer 4130 welded over bolted but given the opportunity someone could build a bolt in with the same strength as the welded cage.


Either way there is a reason you don't see nascar or top fuel dragster cages bolted in ;)

[GRIP]

Yup they are dedicated race cars, that have to be uniform and conform with every other nascar chassis, but you are also comparing 4 or 7 point V.S. a weld in 20+ cage

like I said any car that races on a professional level has to have a weld in cage
I would like a weld in one too, but its overkill for me in a street car at the moment

one day I would like to fit the skyline with a cage like this
http://img.photobucket.com/albums/v294/imprezatweaker/stirollcage.jpg

[BNR32]

mmmmmmm....... solidworks..... :)

[Skym]

FIA has nothing to do with street car rules in Canada, where this pertains to.

I was thinking of rollcage, etc info below, when I realised after you said the above, that they go through LVVTA to get a cert with full rollcage, so car can be road legal and get a WOF (Warrent Of Fitness) in NZ -

http://www.lvvta.org.nz/

But rollcage still has to be built to certain specifications by a MSNZ approved constructor and MSNZ are associated with FIA, just like ASN Canada.

This is NZ Motorsport Regulations for rollcages for I think was V8's and explains how the logbook, MSNZ, etc comes into the mix -

http://www.motorsport.org.nz/Pdf/0910%20Sch%20TL%20-%20Part%20L%20%28Safety%20Cage%29%202009-10.pdf

They talk about materials, tube size, etc. Page 5 has a CAD looking version of a good rollcage (I assume to MSNZ, FIA specifications).

[Insta_AxE_Toast]

I want this just to look cool

http://www.wolferacecraft.com/images/Install%20Pics/mus25-2/fx25210.jpg

Halo ftw, the only thing you will not look cool doing is getting in or out =D

[mcfly]

but you would easily make up the cool points again when you run a 6 second quarter mile with that sfi 25.2 cage :p

[GRIP]

Is that cage meant for a full tube car? Im not really up to speed on the drag racing end of things

[hozer]

A bolt-in 'JDM' cage is pretty much useless for a roll-over or most crashes that would warrant a cage....that is, unless all you really want to achieve is some added chassis rigidity (the most common advertised benefit) and to look 'cool' while drifting in your 'race' car.

Not to go OT, but I have personally witnessed a 6pt cusco safety6 safe someones life. Buddy rolled his riced out SI with his "ricer crap" roll cage. Cracked his head on the cage but saved him from being a pile of goo. Bolt in roll cage will do just fine for street driving and even track usage

Bolt in cages get a bad name but it does its job just fine, and if for some reason my insurance company wants to have an inspection, oh wait my cage comes out... I pass my inspection.

[mcfly]

Is that cage meant for a full tube car? Im not really up to speed on the drag racing end of things

pretty much, with a stock body