
03-11-2009, 02:58 AM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Not Ranked
Mike, there was once a theory that a line taken from the top of the front guards to the top of the roll bars should be a minimum of 50mm above your helmet.
ie. If you do roll the car it will hopefully skid/rest on those points and also allows for body drop in harnesses whilst inverted. 
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