Adding to a Roll Cage

[Nick]

So... Let's say i have the usual 6 point bolt-in cage.

I want to ditch the diagonal from the rear, weld in a "X" ... then Weld some bar through to the front struts.

What Metal am i looking at, Cold Drawn Seamless tube ? Prices - Probably need 4 meters MAX

Thanking you.

[burgo]

indeed cold drawn seemless is what you want. its not that cheap tho. i think i paid £60 for 3 meters off ebay

[Nick]

Cheers burgo, just found out my Local Motorsport place sells it by the meter for £13.95 which i can collect in person...

So, next question. Obviously a X for the rear just requires 2 lengths of straight bar. How much bending does 2 bars to the front struts require ? or can you do that with 2 bits of straight bar as well !?

[George g]

Double post

[George g]

If you are log booking the car then be careful as you are not allowed to add or alter a cage. If not then just ignore me.

Yes, cds is what you need. Most steel merchants can deliver it to you.

[Nick]

Nah aint log booking it, may do some hill climbs. I take it running a cage through to front struts doesn't count as any sort of spaceframe/chassis mod !?

[George g]

You will need to check that forward triangulation is allowed, as I'm not sure.

[philip]

nah not space frame.

i did the same to my corsa shell. i added harness bar, went to back of struts, x bars and more triangulation to the bar(all built to transfer impact through the car)

think i used to pay £9 a metre, but you will need more than you think matey.


get some 40mm plastioc plumbing pipe and use that for your templates for your joints/lengths, far cheaper if **** that up than the steel tubing

[Nick]

Sweet, Cheers for the tip !

I aint gonna be making it, got 2 mates on the job - one of them welds steel tubular frames for buildings so he should be able to sort it !

[burgo]

theres no bending involved for the front triangulation

[Nick]

Schweet. I'l get some lengths measured up !

Cheers for your help