PDA

View Full Version : Defender Exterior Protecton/Roll Cage



marek
11th March 2007, 08:48 PM
Hi All!

Would anyone know where in Australia a roll-cage sutch as the one shown in this picture can be found please. Contact details and price estimate would be great. Can onyone make it maybe?

1762

sclarke
11th March 2007, 09:34 PM
Exo cage for the NAS vehicles.... (North American Spec)

Can it be built here.... YES.... at a Cost not worth persuing.

Some were built by Mantec in the UK.
If your keen contact Mantec and have one imported.

To get it built here my guess would be $4k

Clarkie

lokka
11th March 2007, 09:44 PM
4k seems a bit rich i could build one but would need sum specs....
How do the mounts bolt up to the body do they just have a plate bhind the mounts as it looks like an easy job if your handy with a pipe bender and a mig :D:D:D

dullbird
11th March 2007, 10:19 PM
import a safety devices cage from uk

they are really nice bolt straight on

reckon you might have legality probs with it here though cant cough on yeh car with out a certificate

dobbo
11th March 2007, 10:32 PM
import a safety devices cage from uk

they are really nice bolt straight on

reckon you might have legality probs with it here though cant cough on yeh car with out a certificate

not too sure with exocages you may get away without a certificate, definately need on with an internal rollcage. I have not found any ruling on exo cages, I think they may come under brushbars for the sides an a roof rack for the roof.

If you can get the official word, let us all know.

dullbird
11th March 2007, 10:38 PM
why with internal and not external

internal ones can bolt to the seat boxes you dont need to weld to the chassi there for your not altering the structure of the vehicle

LoadedDisco
11th March 2007, 10:52 PM
As long as you have an engineers certificate it would be ok. Without you could be buggered what ever you try. Both ways you are altering the car and you can guaranty if you had a rollover in a new Land Rover under warranty you would loose the warranty. Even though you should not have to much to fix with the exterior cage on a simple rollover.

1103.9TDI
11th March 2007, 11:11 PM
Don't see any problem, provided the bars don't exceed the side mirror width of a standard vehicle, great idea too build locally, I'm in, for a half decent price..................just poach off a pommie one!!, anyone got one???.....

tombraider
12th March 2007, 12:14 AM
why with internal and not external

internal ones can bolt to the seat boxes you dont need to weld to the chassi there for your not altering the structure of the vehicle

A roll cage that does not connect to a chassis is a waste of time.

Body mounted components last about "" long in an impact/rollover.

Oh Yeah.... And it also comes down to occupational space.

Any internal modification (Cage, Roof console etc) MUST maintain clearances around occupants as laid out in ADRs

Reads90
12th March 2007, 08:31 AM
Some were built by Mantec in the UK.
If your keen contact Mantec and have one imported.

Clarkie

Mantec don't make cages
All the Land rover cages for the Camel and NAs spec were all Saftey Devices ones.
But it is up to what you are looking for . If you want it for look then a saftey Devices one is fine. But not for strength. Have seen a few rolled and the cage has not lasted .
Some time easer and cheaper to get one made for your car. Tht is what i did with my old 90.

JDNSW
12th March 2007, 08:49 AM
4k seems a bit rich i could build one but would need sum specs....
How do the mounts bolt up to the body do they just have a plate bhind the mounts as it looks like an easy job if your handy with a pipe bender and a mig :D:D:D

I think you will find they go through the body (where they appear to bolt to the body there is another section bolted to the other side and extending to the chassis*) and actually mount on the chassis - not much point otherwise.

*I have a similar setup to mount a ute crane in the back of my 2a.

John

sclarke
12th March 2007, 12:11 PM
Ali, your right, they are not Mantec, but Safety Devices. My bad.

$4k, damn cheap for your life.
As John said, They go thru the body and there is legs to the Chassis. As cage is useless unless its tagged back to the chassis.
The labour content would be the killer on an exo cage like that.
CDS is about $50-60 per meter.
A cage like that has about 30 meters of material and then there is plates and bolts and welding and bending and the labour......

I made a cage for my Rally car years back and just the materials came in at $1600, then there was the 40 hours i spent to get it all the way i wanted.

Note. No defender is alike in build. They all vary some by 20mm at spots. Why??? Hand built.... well some is.
When i build sliders they are custom to the Defender. My last set the LH and RH was 25mm out in the mounting spots. So you could not just put them on the next defender.... it wont fit.

Do you like nice fitting shirts and pants...... Well i like to make my sliders and cages and other mods fit also.....

Clarkie

Reads90
12th March 2007, 12:37 PM
This was my brother 90 . The cage was made for the truck , because as sclarke said no two defenders are the same and the saftey devices one can look gappy.
But this is the cage after the 90 fell of a hill climb and landed 30foot on to its roof. Here is the vid of it.http://www.youtube.com/watch?v=AOQDO2l2UNs
The cage i twisted and twisted the chassis. But it is a 1985 90 chassis and it did save my brother and his mate life . So you don't worry about thoses sort of things:)

https://www.aulro.com/afvb/

https://www.aulro.com/afvb/

https://www.aulro.com/afvb/

Grizzly_Adams
12th March 2007, 02:11 PM
I have an internal/external cage sitting at home that was made for me by Protection and Performance (http://www.protectionandperformance.co.uk/)

Just haven't had the funds / time to sort out the legalities and get it properly fitted yet :(

Cost was about $3k for the creation - still gotta get it fitted yet.

Reads90
12th March 2007, 02:35 PM
I have an internal/external cage sitting at home that was made for me by Protection and Performance (http://www.protectionandperformance.co.uk/)

Just haven't had the funds / time to sort out the legalities and get it properly fitted yet :(

Cost was about $3k for the creation - still gotta get it fitted yet.


There nice cages

dobbo
12th March 2007, 02:46 PM
There nice cages



I agree, but will they meet ADR's? While your at it are they CAMS certified, the way I see it if you go to the hassle of getting a cage installed you might as well get the car suited to comps for the future. Also if it's a CAMS certified cage engineering should be flown through with no hassles.

Reads90
12th March 2007, 02:52 PM
I agree, but will they meet ADR's? While your at it are they CAMS certified, the way I see it if you go to the hassle of getting a cage installed you might as well get the car suited to comps for the future. Also if it's a CAMS certified cage engineering should be flown through with no hassles.


Most of them in the UK are built to FIA regs

dobbo
12th March 2007, 02:57 PM
Most of them in the UK are built to FIA regs



I realise this but unfortunately CAMS look at "the installation of a CAMS certified rollcage" not just the build quality.

Reads90
12th March 2007, 03:00 PM
I realise this but unfortunately CAMS look at "the installation of a CAMS certified rollcage" not just the build quality.

The FIA is more important about that too. They want to know where it attc to . No point a cage just bolted to the body panels:)

dobbo
12th March 2007, 03:08 PM
The FIA is more important about that too. They want to know where it attc to . No point a cage just bolted to the body panels:)


so we both agree with your post #13

get a custom cage for a hand built car because no 2 cars are the same.;)

Just make sure it's certified by either an international or national motorsport body upon installation else you'll only end up with a thin wallet and a broken heart or head.


But when is it considered and exo cage and not a roll cage? From my understanding (probably wrong) an exocage does not attach to the chassis nor body in any way shape or form. It runs off brushbars connected to bullbars.

dullbird
12th March 2007, 03:41 PM
A roll cage that does not connect to a chassis is a waste of time.

Body mounted components last about "" long in an impact/rollover.

Oh Yeah.... And it also comes down to occupational space.

Any internal modification (Cage, Roof console etc) MUST maintain clearances around occupants as laid out in ADRs

i sort of agree but i sort of dont.......yes really a cage is better when it is welded to the chassi because it is stronger, if you cant do that or cant afford that then i dont see why an internal hoop is a waste of time as the defender roofs are so week on a roll over that any protection is better than none as far as i'm concerned....

dobbo
12th March 2007, 03:48 PM
i sort of agree but i sort of dont.......yes really a cage is better when it is welded to the chassi because it is stronger, if you cant do that or cant afford that then i dont see why an internal hoop is a waste of time as the defender roofs are so week on a roll over that any protection is better than none as far as i'm concerned....


In the event of a rollover a steel hoop just bolted to the aluminium body would cut though it like a knife through butter pushing down and probably taking your head with it. The protection bar effectively becomes a flying (read decapetating) object. Chassis mounted is the only safe way to go. If your in doubt call up the RTA tech section or Cams and ask them, but Tombraider is right.

dullbird
12th March 2007, 04:01 PM
In the event of a rollover a steel hoop just bolted to the aluminium body would cut though it like a knife through butter pushing down and probably taking your head with it. The protection bar effectively becomes a flying (read decapetating) object. Chassis mounted is the only safe way to go. If your in doubt call up the RTA tech section or Cams and ask them, but Tombraider is right.


ok i was in the understading that when you bolt a hoop in you have to reinforce with metal underneith anyway as aluminium is no way near strong enough this then spreads the load and then you do have the added option of the angled metal coming off the hoop towards the back of the car which again has to be reinforced to give added strength

but ok i stand corrected, i'll shut my mouth

dobbo
12th March 2007, 04:11 PM
ok i was in the understading that when you bolt a hoop in you have to reinforce with metal underneith anyway as aluminium is no way near strong enough this then spreads the load and then you do have the added option of the angled metal coming off the hoop towards the back of the car which again has to be reinforced to give added strength

but ok i stand corrected, i'll shut my mouth


You just tell it like it is

So if you go to the hassle of plating a hoop at the base, then reinforcing the Aluminium underneath the car with steel spreaders then having diagonals running the length of the car, plating and reinforcing them, to get it all looking possie and that, with the aluminium sandwiched inbetween two steel plates, why not get it done properly in the first place and chassis mount the underneath spreader bars on the outriggers? Making the car legal and safe.

1103.9TDI
12th March 2007, 05:07 PM
Don't know where all this expert advice is going, but the idea of a 'Safety Devices' type roll cage appeals to me, but obviously, it must attach, through the body, to the chassis. If fastened in this way, think it will be a stronger and offer more protection than we currently have!.:)

Reads90
12th March 2007, 05:12 PM
As you lot know our 90 is a soft top . It has a protection Bar in the Back. so called protection bar and NOT roll bar as it is only fitted to the ali rear tub. On the sides of the rear bulkhead and wheel arches.
This is not designed as a roll bar , and its only real use is to hold the seat belts. Apart from that it is not alot of use. Mind you i would rahter had somthing rather than nothing:)
Did worry me a bit wiehter they would kick up about that when it came in Aus. Because it is a soft top wit no roll bar what so ever.
Here are pics of the bar

https://www.aulro.com/afvb/images/imported/2008/01/465.jpg

Grizzly_Adams
13th March 2007, 09:25 AM
The one I had made bolts onto the chassis, I didn't like the idea of having to weld onto the chassis.