1) if you have a cage with a " cams sticker and a number " mine is 345 i think then the cage has been accepted by cams at some stage as compliant at the time.
you can " transfer this cage into another shell if there was a racing incident where by the shell was damaged. hence you can re use an old aluminum cage.
They don't like to tell you this and would prefer that you use a " new steel cage" in any new car.
For instance my cage ( 6 point) does not have " side intrusion bars" between A and B pillar the guy at CAMS stated that they would NOT accept my cage if i put these side bars into the cage.
2) old cages - no CAMS sticker no go on the cage and they will not accept AT ALL as there is no reference point to " when the cage was accepted "
3) old cages can be what ever material was approved at the time.
GENERAL BELOW for NEW cages
Material: Ideally the material specifications detailed in paragraph 3.1.5. Materials should be used, but
alternatives will be considered where these can be shown to be impractical. Alloy bars are not allowed
this is in the further reference point. NOTE the word ideally above
3.1.6 ROLL BARS: It is strongly recommended that effective roll bars be fitted to all competing vehicles but, in
Groups Ja, Ka and Lb, those which cannot be so equipped without serious adverse impacts on standards
of authenticity and originality may be exempted from the requirement. Owners and drivers will be required
to attest in writing their understanding of the additional risk of death or injury arising from their use of the car
without rollover protection equipment.
Historic vehicles (except Groups Na, Nb, Nc, C, A, Sa, Sb and Sc - refer individual group regulations) are
subject to the following possibilities:
(a) no roll bar unless the vehicle was originally equipped with one (Groups Ja, Ka and Lb only); or
(
a roll bar based on CAMS 1973 requirements (see below).
© a roll bar complying with Schedule J; or
(d) a roll bar specifically approved by CAMS and conforming to the guidelines detailed in Standards 3.6.5.
Type (
: Specifications for a roll bar assembly for possibility (
above based on CAMS 1973 requirements
are as follows:
General configuration: With the driver in the normal seated position, the roll bar shall:
(i) be of height at least level with the top of the driver’s helmet;
(ii) not overhang the driver’s helmet, but be within six inches (150mm) of the driver’s helmet;
(iii) in combination with the vehicle structure shall not leave unprotected any part of the driver’s shoulder
profile (when viewed from front or rear);
(iv) be adequately braced longitudinally. Last updated: 01/01/2015
5TH CATEGORY - HISTORIC CARS
VEHICLE ELIGIBILITY – GENERAL REQUIREMENTS 3
© Confederation of Australian Motor Sport Ltd. All use subject to Conditions of Use at www.cams.com.au
Material: Seamless or drawn welded steel tubing, either square or round in section, of minimum sectional
dimensions as follows:
• Overall dimensions of main hoop members less than 600mm by 600mm: 1¼ inch (or metric equivalent) by 16
gauge.
• Overall dimensions of main hoop members more than 600mm by 600mm (eg, full-width roll bars on two-seat
vehicles): 1¾ inch (or metric equivalent) by 12 gauge.
• Mounting plates, when used shall be of a minimum thickness of one-eighth inch (3mm) and shall adequately
distribute stresses into the main structure of vehicle.
Fabrication: Where tube bending is employed all bends shall be of smooth form without crinkling or
significant section weakening.
Mounting: Al
View Garage
