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Bolt-in Cages

JimmyRickard

By JimmyRickard,
in Motorsport Discussion & Builds

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Risking Grand Master

Risking

Posted
Posted

Not a fan of bolt in cages. The problem with most is that they are generic and spat out by cage shops around the place to just meet the requirements. Or not even in alot of cases. Quick, easy and cheap!!

If it must be bolted in....

Plates under the floor are bullshit. A welded plate to the sill pannel/floor and the same to the shock tower. Those plates have captive nuts welded to the back side ( requires larger holes yes) the matching plates on the cage to the new plates that are welded to the chassis and structural points, not through the flimsy sheel metal floor pan like 90% of bolt in cages do!

I completed a street legal s15 cage last Friday with intrusions done this way, welded rear half and bolt in front.

If you have a cams manual drawing 253-19 in shedule J is what I'm refering too.

Just be sure to shop around and don't buy the first cage that pops up for sale from japan.

It's kinda like a tattoo, design it 5 times, build it once, you've got it for life without regrets (hopefully)

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«Cyph3r» Experienced

«Cyph3r»

Posted
Posted

If it's going to be a track car and you really want to be safe in an accident instead of just adding body rigidity, go to meridian motorsport or bond or the likes and look at get something welded in.

Anywhere should be able to discuss budget and what points you want picked up and give you a price from there.

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Kaido_RR Grand Master

Kaido_RR

Posted
Posted
Hey guys looking for a bolt-in cusco 10 point or something like that, where would be the cheapest place to find one?

Just looking for a quick and cheap cage to get my 32 GTR out on the track.

cheers!

what are the plans for the car? Do the events you plan on entering required a cage?

If no then yes cusco or safety 21 would be your cheapest opinion, If you look around in the for sale section you can pick up a cheap second hand cage for around the $500 mark.

Don't buy one from Japan, because it will be a complete ass to get it here in Australia unless you have access to a container. i was quote $1000 for shipping by RHD japan for shipping of a brand new cusco roll cage, which no longer makes a $800 cage cheap

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Kaido_RR Grand Master

Kaido_RR

Posted
Posted (edited)
A 6-point bolt on bond cage is cheaper than a cusco cage anyway...and safer

The problem i had with bonds was that because they didn't have the off the shelf cage for my car at the time, and my car was in perth they couldn't supply me one :D But you are right that they are cheaper i think my friend pay $900 or around that for his bolt-in full cage (around the dash) for his evo 7 and the qaulity was second to none and was larger dia compare to the cusco too.

I'm not sure if bonds can supply an r32 gtr cage without seeing the car but if they could i would be very interested even if it was 1k for a half cage. i think i may have to call them very soon

Edited by Kaido_RR
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Risking Grand Master

Risking

Posted
Posted
The problem i had with bonds was that because they didn't have the off the shelf cage for my car at the time, and my car was in perth they couldn't supply me one :D But you are right that they are cheaper i think my friend pay $900 or around that for his bolt-in full cage (around the dash) for his evo 7 and the qaulity was second to none and was larger dia compare to the cusco too.

I'm not sure if bonds can supply an r32 gtr cage without seeing the car but if they could i would be very interested even if it was 1k for a half cage. i think i may have to call them very soon

I'd dare say you don't see many cages then...

Quantas could park their A380 fleet between the pillars and a bolt in bonds kit. They are a generic bolt in/clamp together and bent up as such. The fit is typical of bolt in though nothing wrong with it just big gaps to make sure it fits easily in every car. A custom bent specific hoop is a lot more expensive but a snug fit and that's real quality.

Peter and Allan do good work and have been doing kits for skylines for years, ask for a custom bent hoop, welded slip together joints and reinforced bolt in plates, it will cost more than a weld in but be true quality.

I have drawings for a few sloppy fit hoops like bonds use as well but I'd rather not do them that way.

The tube is 44od cause it's the right size unlike jap rubbish that does not even come close to passing FIA homologation.

1k should get you a reasonable weld in rear cage. $550 is ballpark for a sloppy fit, clamp together bolt in

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Kaido_RR Grand Master

Kaido_RR

Posted
Posted
I'd dare say you don't see many cages then...

Quantas could park their A380 fleet between the pillars and a bolt in bonds kit. They are a generic bolt in/clamp together and bent up as such. The fit is typical of bolt in though nothing wrong with it just big gaps to make sure it fits easily in every car. A custom bent specific hoop is a lot more expensive but a snug fit and that's real quality.

Peter and Allan do good work and have been doing kits for skylines for years, ask for a custom bent hoop, welded slip together joints and reinforced bolt in plates, it will cost more than a weld in but be true quality.

I have drawings for a few sloppy fit hoops like bonds use as well but I'd rather not do them that way.

The tube is 44od cause it's the right size unlike jap rubbish that does not even come close to passing FIA homologation.

1k should get you a reasonable weld in rear cage. $550 is ballpark for a sloppy fit, clamp together bolt in

i was under the understand that if you wanted a custom fit one, they would need to see the car? good to be proven wrong, must give them a call and see what the price is for the half cage for the r32

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Risking Grand Master

Risking

Posted
Posted

Just as an example.

A bonds weld in kit for a GTR will set you back around $550. That will get you a hoop, single diagonal, rear legs, harness bar and mounting plates.

It will take about 6-7 hours to fit properly, including cleaning the floor, shaping/ welding plates, knotching each tube joint,TIG welding etc etc

So on average $1100 fitted give or take if it's TIG welded.

A weld in rear half. A really nice specific bent hoop (max 5mm gap to pillar), single hoop diagonal, rear legs, full X rear section, harness bar, leg supports and base plates etc etc.

It takes about 10-12hours to do And costs $1450-1550

Or get your local exhaust shop to knock up something trashy for 800 bucks.

It's really important to shop around, there are heaps of cage builders out there who do just as good if not better work than the known guys and are willing to do more for less and spend the time with you to give you what you want as opposed to getting what your given.

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Marlin Grand Master

Marlin

Posted
Posted

Also worth noting that in no way would I want a bolted together cage with the "split" type joints. Fully sleeved is the only way to go.

I've seen a few of the popular bolt in cages, the fit is typically appalling, and restricts massively fitting equipement within such as good seats, and even the way you can move within. I've spent a bit of time lately in cars with common off the shelf cages, and I didn't feel any safer that I would if it just still had the airbags connected. lol

If you're serious you'd certainly spend a bit more for a real and tangible improvement.

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hrd-hr30 Grand Master

hrd-hr30

Posted
Posted (edited)
The tube is 44od cause it's the right size unlike jap rubbish that does not even come close to passing FIA homologation.

I think people get far too hung up on CAMS regs, and think the only safe way is with the dimensions CAMS specify - eg its the only right size... Its worth noting that NZ use the FIA dimensions on thier rally car cages, and they DO NOT meet CAMS specifications.

At any rate, you only need an FIA spec cage for International events.

Also worth noting that in no way would I want a bolted together cage with the "split" type joints. Fully sleeved is the only way to go.

I rolled a rally car off a bank landing on the roof with this style of cage. Unbolted it from that car and threw it in the new shell - all we did was replace the bolts.

try that with a you beaut weld-in cage :D hehe

Edited by hrd-hr30
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Risking Grand Master

Risking

Posted
Posted

I agree it's not nessisarily the right size. It is the right size according to the basic cages cams homologated and deemed safe though, which are the rules we need to adhear by as unfortunate as that is.

If the NZ cages are built around and homologated by the FIA then cams has no choice other than to acept their homologation papers and deem it safe.

I've built, engineered and homologated a fair few cages, all of which do not have 44.5mm hoops or 2.6 wall thickness.

Anything that needs separate homologation we build around FIA regs. Spending good money going through the process you may a well make sure it can pass any regulations not just CAMS.

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kazekage Rookie

kazekage

Posted
Posted

I had bonds make a custom cage for my s13 that was bolt in, 6 point, side intrusions, cams approved.

Sure it cost a tad more but its cams approved and if i ever total my car I can transfer the cage to the new shell.

The ONLY downside of having a bolt in rather then a weld in is you cant tag your cage in. (ive had a window pop out before due to flex plus poor window fitment).

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Sir Lord Van Von Vader'ham Veteran

Sir Lord Van Von Vader'ham

Posted
Posted
I had bonds make a custom cage for my s13 that was bolt in, 6 point, side intrusions, cams approved.

Sure it cost a tad more but its cams approved and if i ever total my car I can transfer the cage to the new shell.

The ONLY downside of having a bolt in rather then a weld in is you cant tag your cage in. (ive had a window pop out before due to flex plus poor window fitment).

is that because you welded/tagged a bolt-in cage to the pillars? or did just having a bolt-in do that?

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