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Kirkham Motorsports

 
 
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  #25 (permalink)  
Old 10-19-2010, 06:34 AM
Jethrow's Avatar
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Join Date: Jul 2010
Location: Perth, WA
Cobra Make, Engine: FFR Mk4 Roadster, LS3, TR6060, 8 3/4"
Posts: 432
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Default Beam and Torsion Testing

So I have had a few questions regarding compliancing for this vehicle, and some seem to centre on the beam and torsion testing requirements.

I decided to look into this and found a document from the Department of Transport and Regional Services (DOTARS) called the National Code of Practice for Light Vehicle Construction, Section LH Body and Chassis.

Under code LH5, there is a section called Beaming and Torsional Tests, and it states:

ICV's or kit cars utilising a modified production vehicle chassis, a newly constructed chassis or a specifically designed chassis do NOT need to undergo beaming and torsional testing to determine their relevant stiffness.

It does go on to say that the kit car manufacturer shall remain responsible for the design of the chassis and its inherent structural strength and thus safety.

And more words about recommended advice etc.

But anyway, the test is not required.

But now the caveat. I think the consulting engineer, if he is viewing an untested car can request the test be done before he is willing to sign it off. Unless he can satisfy himself, by inspection that it is not necessary.

Also I think in QLD, the rulemakers have forced this test on the locals regardless of the code.

So, for here in WA, if my engineer is happy to sign off my chassis, then the test is not required. And I think given FFR's history of some 7000 kits delivered, this should not be a problem.

Besides, have a look at it - I think this chassis looks 'just right' (even if the roll bar is on the wrong side)



PS I should add that I know there is at least one FFR Roadster registered already in Australia, because it is currently for sale right now via eBay. That's gotta be a plus as well.

Last edited by Jethrow; 10-19-2010 at 06:51 AM..
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