by megavega » Tue Apr 22, 2008 8:36 am
a "rollcage" is a frame connector, a "rollbar" isnt. A rollcage has windshield mounted downbars and a halo bar, this effectively ties the car from front to back, they also commonly use front strut bars which weld to the front frame rails. As these are unibody cars there is no frame, the entire floorpan and with dimples and reinforcements spot welded/multiple panels joined to it is the frame. So the "cage" ties the whole car from front to back, you dont need frame connectors with a cage, a rollbar just ties the left side to the right side and slightly boxes the rear half of the car with its rear ward struts.
The sill bars added go from the main hoop to the front windshield down bars and add even more rigidity to the center of the car, they are not connected to the sill, just merely sit above it from front to back.
1972 hatchback, 28,000 orig miles, 427BBC/twin T4 turbo's/T56 six speed/big wheels, lowered down pro touring style-work in progress....
1973 vega wagon-under the blue flame knife.