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.
Nhra roll cage inspection.
Junior dragster racing league rulebook.
Per the nhra rule book on unibody cars with stock floor and firewall wheel tubs permitted the roll cage may be bolted or welded to the floor rocker box if you are going for the bolted option the 125 inch steel plates must be on top and bottom of the floor and bolted together with at least four 3 8 inch bolts and nuts.
2019 to 2020 rulebook amendments.
These are found in 4 10 4 11 and 10 6.
Roll cage with altered floor pans or 135 mph window net required ignition cut off on all bikes snowmobiles that exceed 135 mph 9 99 seconds 6 39 1 8th or super gas or 135 mph nhra chassis certification nhra competition license sfi jacket pants 3 2a 5 sfi neck collar gloves 3 3 1.
The result of this certification is a serial number sticker being affixed.
5 or 6 point rollbar construction nhra legal required beginning at 11 49 with a closed car truck 13 49 with a convertible.
Class by class regulations and requirements racing procedures and.
There are many more requirements covering roll cages roll bars and their associated and required padding.
2019 to 2020 jdrl rulebook amendments.
2020 rulebook amendments.
When an nhra inspector checks your car and rollcage he inspects each weld does a sonic test of the tube material and makes sure each connection point of the cage meets regulations.
Nhra mello yello the nhra the largest auto racing organization in the world.
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Once the inspector approves the rollcage he will apply a non transferable dated sticker on the passenger side of the cage s main hoop.