pass tech

[sportster96blk]

will these doubbled up 6+6 plates pass tech?

[chevy art]

hey sportster my 67 nova has the cage welded in like that. i had it done by a chassis guy a long time ago and never had problems with nhra tech(its an 1090-1100 et car) if your car goes in the 9.90 or faster, then the chassis will need to be certified and there may be stricter rules and regs pertaining to the cage structures and fastening techniques.. what i did with mine, over and above what the chassis shop did, was i made matchingshaped 1/8 inch steel plates and put them on the underside of my stock steel floor and bolted them together, making like a sandwich with the bottom of cage, the floor of the car, and the new underside steel plates.i felt it added alot more strength to the bottom points of the roll cage. hope this info helps. good luck with your car art

[sportster96blk]

thanks art , trying to avoid bolting plates underneath i added frame stiffeners so that would be almost impossible. dont think my car will ever see 9s thou think i might be happy with 10s or low 11s we,ll see. altho racing is a lot like drugs! cant seem to slow it down once started