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Sau Vic Motorsport Championship Round 4

ssxRicho

By ssxRicho,
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ssxRicho Grand Master

ssxRicho

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Wheels...what wheels.

Both the LHS have bits missing off them pinch.gif

All the arms are back on the car and it drove ok. Just needs a wheel alignment now. I'm guessing the front LHS hub and mounting points for the tie rod and the lower arm may have moved a little.

But time will tell.

Ant97GTR Grand Master

Ant97GTR

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Lol did anyone actually read the new supp regs in regard to the fire ext. mounting? Not sure if this has come directly from CAMS (wouldn't surprise me!) but the supp regs read:

b) Must be fitted with a fire extinguisher securely mounted on a metal bracket with metal straps within the cabin and readily accessible to the driver whilst still in the seat belt or harness and which complies with AS 1841 (save that extinguishers which meet AS 1841.2 are not permitted), and be of at least 900gms capacity. Halon/BCF extinguishers are not permitted. The extinguisher and the bracket must be a compatible set, (i.e. as supplied by the manufacture of the extinguisher.) The extinguisher should be retained within the bracket by at least one (1) metal strap. The bracket should be secured using a minimum of 2, Grade 6 or greater bolts, of a minimum 6mm diameter, and self - locking nuts. A suitably sized body washer may be required to provide extra support for the bracket. The securing system must be able to withstand a 25g deceleration.

The part in question is the bit in bold regarding Grade 6 bolts. There is probably no way that the scrutineers on the day are going to check the markings on the heads of the bolts 8), but the problem is that grade 6 bolts are no longer made and herein lies the problem....The supp regs say grade 6 or greater, but the next grade of bolt is the grade 8. Sure this is a 'harder' bolt but is prone to breaking due to the brittle-ness from the treatment ie under load it is more likely to shear the head off. The lower grade 5 is the bolt used in automotive apps as it is still 'hard' but due to the lower level of heat treatment is more likely to stretch under load rather than shear.

So bottom line, I'm going to use grade 5 or 8.8 bolts....

R31Nismoid Grand Master

R31Nismoid

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lol @ self tapper.

Have a read of the entire reg though Ant, its all pointless anyway/not ever followed.

There is no chance in the world, strapped into a harness, that you'll be able to reach the extinguisher unless its bolted to the roof above your head!

Given the purpose of a harness is to stop one from moving!

Ant97GTR Grand Master

Ant97GTR

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Have a read of the entire reg though Ant, its all pointless anyway/not ever followed.

There is no chance in the world, strapped into a harness, that you'll be able to reach the extinguisher unless its bolted to the roof above your head!

Yeah I know....but I'd be kicking myself if I turned up, paid the money and they knocked me back because of something so small :(

Hy Ant, what's your previous best at Sandown?

Sandown makes me scared so prev setup only yielded a flat 1:23. While I will be aiming for teens, I will be held back by the fact my balls are smaller than usual at Sandown :yes:

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