Davo,

Your mate and Errol are both correct.  The stated specs are seamless steel pipe of 
aminimum diamter and wall thickness for the main hoop and a different 
thickness/diameter for the front and rear legs.  A diagonal is also required and must 
be welded in.

The CAMS reg (Appendix J) is a straight copy of the FIA reg.  Basically, other 
materials can be used provided has the same or better strength than the steel setup as 
provided.  The issues is, that if you use other materials, you have to rpove that it 
is better than the steel setup. ie a cage has to be made and subjected to the various 
tests before it will be passed.

The other thing is that for certain classes of racing the cage hoops and legs must be 
fully welded but can be bolted or welded to the floor.  The use of bolt togther cages 
or "T-clamps" are not currently valid for racing.  This is currently under review and 
is expected to be approived for 2001 in the next couple of weeks.  The FIA technical 
committee has just approved them and is awaiting final ratification by the FIA Board 
on October 2nd.

All the details are on the following website

http://www.fia.com/homepage/selection-a.html

Goto Technical and Sporting Regulations
Then Appendix J to the International Sporting Code
Then Article 253 - Safety Equipment
Then Section 8 - Rollover Structures

I am currently awaiting approval for my rally car so I have researched the issue 
thoroughly.  The Bond Roll Cage cost $800 versus $2000 for a fully welded type.

If you want anymore info, then give us a yell.

Cheers

--- "Errol Smith" <[EMAIL PROTECTED]>
> wrote:
>Scott,
>Davo
>I think you'll find the main hoop and braces must be made from seamless
>steam pipe!
>Cheers
>Feral Errol
>
>----------
>From: Davidson <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: cams reg on roll cages
>Date: Tuesday, September 19, 2000 8:17
>
>Just wondering whether anyone has the cams regulations on roll cages.
>
>I've heard that u need to use seamless tubing.  But the guy i work with who
>has made quite a few cages said u dont.  Just aslong as the pipes has a
>certain strength rating.
>
>Also, anyone know the number for SSS in Sydney?  Apparently they make 10"
>disc's for stanza struts!!!
>
>Scott
>Davo
>
>

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