Paul Edden Posted March 18, 2012 Share Posted March 18, 2012 I've read the Blue Book, and cannot find anything saying a roll bar or roll cage has to have a hole drilled in it, for inspection or otherwise. What it DOES say, in the penultimate sentence of para. 1.2.2 of section K is: "Any modification to a homologated safety cage is prohibited." Drilling a hole in a homologated safety cage is a modification. It is therefor not permitted, and will therefor invalidate the certification of the cage, I would suggest. Further, if you made a modification to a certified cage, then went back to the manufacturer to ask them to recertify the cage, they would laugh at you. First they couldn't do it. The certification is issued by the MSA, not the manufacturer ( or the FIA in the case of international homologation). But secondly, no sensible manufacturer is going to be so stupid as to put their head on the proverbial chopping block by saying their cage is still going to save your life in a rollover accident when you've made changes to it which may weaken it, however slightly. QED! Nice one Stephen - debate over me thinks. Please don't drill any holes in your rollbar/cage - unless the original manufacturer placed the hole there in the first place (and had it certified/tested) it ain't meant to be there. Watch this video if you need convincing. I was competing there when this happened - thank god the bloke had a decent cage - he walked away (well limped a bit actually). 1 Quote Link to comment Share on other sites More sharing options...
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