Internal Rollcage pics?

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Joined
Feb 19, 2008
Threads
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Location
Rangiora, New Zealand
wanting to slip an internal rollcage into my hunting 70. Anyone got any pics of their installs, to help me along with my ideas?

cheers
swenz hunting cruiser.webp
 
Nice truck, I have a BJ70 and I'm also interested in a roll cage down the road, (no pun intended) and can't find much on them. A guy I know who customizes harley's said if I mocked one up from ABS plumbing pipe he could replicate it with steel tubing. the more I think about the more i like his idea.
 
heres some piccies of a BHPB mine spec. LWB 70 series landcruiser for an underground coalmine in Australia. Note the blue barwork on the outside is to protect the bodywork. The same truck has internal roll bars as well!!
The rear side door is after market item for the troopies.

My own HJ75 had an external roll cage fitted to it at some stage. I think it had been clamped to the chasis rails underneath the cab.

PA050105.jpg


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Nice research. Thanks for the photos.
 
some other nuggets of information. those little boxes mounted immediately behind the bullbars are proximity sensors so in the event of a smoke filled tunnel, the troopie can still be driven without crashing into the tunnel walls. Also as troopie is for use in coal mines it has an air started starter motor (big blue tank on front)and wet scrubber for the exhaust and all the electrics are totally sealed to stop sparks. The red stubby thing on the front bar is another safety feature so it stops the engine if that sensor enters a gaseous zone. That red button on th front is either a kill switch for the engine or fire suppressent switch for the engine bay.
 
Hello,

I like that external rollcage. And that air starter, too.

External rollcages are bolted to the chassis, right? How do they compare to internal ones?

The sound of an air starter brings fond memories of power packs ready to use. Everything else failed but you could always trust the starter.

Now that would be an upgrade for diesel Cruisers.






JuanJ
 
good idea with the abs plumbing pipe. might help me with the decision to only install a 1/2 cage, from the B Pillars to the rear doors, or include the front 1/2 from the B Pillars to the windscreen. I don't think I've got enough room between the A pillars and the dash when the doors close. Have made contact with a certified rollcage welder who will help me mock it up.
 
Swez, if you can, please show the welder the pictures that I posted, I'd like to get his opinion on the design of those rollcages.
 
Here is the pics of my just completed ROLL cage for the cockpit are of the mighty DEATHSTAR (BJ75 TROOPY). it noew supports new seats, new harnesses and a tank for the lockers which were also installed at the same time.

The cage is fully removeable.

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I have to get the truck back after CNY and install the padding etc but really looking forward to a drive in the jungle with it.

Hope this helps with your ROLLCAGE pics.
 
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Hello,

External rollcages are bolted to the chassis, right? How do they compare to internal ones?

JuanJ

Im impartial to which type of rollcage to have, as im not intending to drive extreme enough to roll.

i had a troopie which i suspect previously had an external rollcage bolted to the underside of the chasis judging by the rust marks. I think it had rolled because theres battery acid damage on the underside of the hood/bonnet and there are 4 identical small curved dents on the 4 corners of the roof.

An EXternal rollcage -if the correct type- will protect passengers and the body work. An INternal rollcage will protect passengers.

An EX will probably be heavier, introduce more wind resistance but if bolted/clamped to the chasis there shouldnt be any holes drilled into the bodywork and like my troopie it can be swapped from vehicle to vehicle. Also the EX allows for lots of hands to help you when your bogged down.

I reckons an IN cage is nicer to look at on a car from outside, no wind resistance, nothing for you vehicle to snag on, but it compromises space inside, bodypanels protection, to a lesser extent stability of bodywork from drilling holes.
 
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Im impartial to which type of rollcage to have, as im not intending to drive extreme enough to roll.

i had a troopie which i suspect previously had an external rollcage bolted to the underside of the chasis judging by the rust marks. I think it had rolled because theres battery acid damage on the underside of the hood/bonnet and there are 4 identical small curved dents on the 4 corners of the roof.

An EXternal rollcage -if the correct type- will protect passengers and the body work. An INternal rollcage will protect passengers.

An EX will probably be heavier, introduce more wind resistance but if bolted/clamped to the chasis there shouldnt be any holes drilled into the bodywork and like my troopie it can be swapped from vehicle to vehicle. Also the EX allows for lots of hands to help you when your bogged down.

I reckons an IN cage is nicer to look at on a car from outside, no wind resistance, nothing for you vehicle to snag on, but it compromises space inside, bodypanels protection, to a lesser extent stability of bodywork from drilling holes.

Hello,

Good explanation, thank you so much. You sold me on external rollcages.





JuanJ
 
CDan's gonna be rocking my OE cage, soon.

Not convinced that the OE is sufficient, looking to walk away from a 50mph roll, but maintaining some semblance to OE in form and function.

That said, not much real estate to work with, have found nothing online, so posing here before formulating a "plan" with a fabricator.

First thought was the old school reinforced cargo (bed) type cage that'd stop at the cabrio, with a tall, wide ass stinger off the front bumper, but quick, unscientific measurements point to it needing a 24" spread, 18" above the hood. Figure there's a good reason why this isn't popular anymore.

Second, using the outer shell of the cabrio (I don't know what in the hell its called), concealing tube hoops, then attaching the a pillar to a Heepish "stanchion" where the fold flat knob is.

Mr. T thought the knob and pillar were sufficient, so reinforce it, plate on the top plate of the pillar, where the windshield bolt goes, and tube from there, back to the cabrio.

[Something like this stanchion]

image.webp


[Here:]

image.webp


Remove knob, reinforce with some kinda structural pillar base, the tube as close to the windshield edge, the removable crossbar as possible.

Windshield could attach at top, somewhere in the upper crossbar.

Reinforce the cabrio (??) with similar to:

image.webp


image.webp


I would fix the windshield if I thought that'd make this easier, but it doesn't and wouldn't be that difficult to make a mount for at one of the A-A crossbars.....at least, on paper.

Lots of words, not enough pics, but hoping for more of either so I can have some kind of idea before turning loose anyone on.
 
Mine is a slightly modded factory cage.

1/2 way there in that it has some triangular cross bracing. I'd also add some diagonal stays going down the sides from above the seats to the tops of the wheel arches.

Most of the other cages pictured in this thread would get laughed out of the paddock if they were presented for scrutineering at any motorsport event. Ya gotta have cross bracing.

Cheers
Clint
 

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