Volume II, Issue 6, Page 22

t’s a plain fact that you’ve got to install a roll bar if your car’s running fast and you want to take it to a sanctioned strip. How fast? Well, according to the 2003 NHRA rule book I have on my desk, if it’s a full body car, you need to add a 6-point roll bar as soon as you break the 11.99 threshold in the quarter (or 7.49 in the eighth). If you’re racing a convertible, a 6-point roll bar becomes mandatory as soon as you break the 13.99 mark (8.59 in the eighth). Owners of modern haul-ass factory muscle cars should check the latest NHRA regulations as there are some significant easements they may give you a little bit of wiggle room before you have to pollute your interior with a maze of tubes.

Sure, it may seem like a bummer to add all that tubing to your cars gut – and nearly 100-pounds of extra weight - but you’ll be eternally grateful its there if things take that one-in-a-thousand turn for the worst. If nothing else, the tubing adds significant rigidity to the body structure which can reduce flex and contribute to better chassis efficiency.

In the case of the altered wheelbase ’63 Dart subject car, we’re expecting to run mid-elevens in the thing once it’s finished so we called Competition Engineering and scored one of their well engineered roll bar kits. Follow along as Dale Snoke of the Funny Car Farm makes the car legal for some drag strip traction action.

Because 1963-1966 “second generation” A-Bodies are not as popular with racers as 1967-up “third generation” models, there are no commonly available roll bar kits on the market for our ’63 Dart altered wheelbase Match Basher. But after measuring the Dart’s interior height (42.5-in.), inside width at the sills (57.25-in.), belt line (53.0-in.) and roof supports (46.5), it became clear that the Competition Engineering C3123A 1967-1976 A-Body roll bar hoop would fit. Bent from 1-3/4-inch, 0.134 thick mild steel, Competition Engineering roll bar kits are sold as an application-specific main hoop that’s supported by a universal-fit strut kit. In this case, the 8-point universal-fit strut kit carries PN C3000. Because 1963-1966 “second generation” A-Bodies are not as popular with racers as 1967-up “third generation” models, there are no commonly available roll bar kits on the market for our ’63 Dart altered wheelbase Match Basher. But after measuring the Dart’s interior height (42.5-in.), inside width at the sills (57.25-in.), belt line (53.0-in.) and roof supports (46.5), it became clear that the Competition Engineering C3123A 1967-1976 A-Body roll bar hoop would fit. Bent from 1-3/4-inch, 0.134 thick mild steel, Competition Engineering roll bar kits are sold as an application-specific main hoop that’s supported by a universal-fit strut kit. In this case, the 8-point universal-fit strut kit carries PN C3000.

 

Here's What's New!