NHRA-legal roll bar
(→5 or 6 point rollbar construction (NHRA legal)) |
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==5 or 6 point rollbar construction (NHRA legal)== | ==5 or 6 point rollbar construction (NHRA legal)== | ||
| − | '''Required beginning at | + | '''Required beginning at 11.49 with a closed car/truck, 13.49 with a convertible.''' |
| − | This topic will cover a 5-point roll '''bar''' as opposed to a roll '''cage'''. Most fellows these days will go ahead and build a cage while they have the welder and their tools fired up, but we'll cover the bar for those of you who don't plan on going 9's (or quicker). With an otherwise '''unaltered''' floor and firewall, a | + | This topic will cover a 5-point roll '''bar''' as opposed to a roll '''cage'''. Most fellows these days will go ahead and build a cage while they have the welder and their tools fired up, but we'll cover the bar for those of you who don't plan on going 9's (or quicker). With an otherwise '''unaltered''' floor and firewall, a 5-point bar will take you to 10.00 flat. If the floor is '''altered''' in excess of 4 square feet (not counting wheel tubs or stock removable floor panels which are bolted, in such as transmission removal panels on a pickup truck) or the firewall is altered in excess of 1 square foot, then a roll '''bar''' will take you to 11.00 and a roll '''cage''' is required at 10.99. |
If the floor or firewall are '''altered''' as described, then it only makes sense to get yourself an NHRA rulebook and install a '''cage''' because you will only pick up 1/2 second with a '''bar'''. (11.49 to 11.00). A "point" refers to a connection point of the end of a bar at the car floor or frame. A 5-point roll bar will have connections as follows: | If the floor or firewall are '''altered''' as described, then it only makes sense to get yourself an NHRA rulebook and install a '''cage''' because you will only pick up 1/2 second with a '''bar'''. (11.49 to 11.00). A "point" refers to a connection point of the end of a bar at the car floor or frame. A 5-point roll bar will have connections as follows: | ||
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