Nhra Roll Cage Rules

Nhra 8 50 roll cage rules the national hot rod association the premier governing body in the sport of drag racing outlines a number of requirements for roll bars and roll cages for racers when building a race car one of the most frustrating and misunderstood parts of the build can be the roll cage.

Nhra roll cage rules.

5 or 6 point rollbar construction nhra legal required beginning at 11 49 with a closed car truck 13 49 with a convertible. Buy a 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. 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.

Roll cages are mandatory for any car either running 10 99 or quicker or capable of exceeding 135 mph must be equipped with a roll cage. 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. While every year the nhra makes amendments to many of its rules the retraction of the roll cage or roll bar rule for 2008 and newer street vehicles running 9 99 to 11 49. In full bodied cars with unaltered firewall floor and body from firewall rearward wheeltubs permitted running between 10 00 6 40 and 10 99 6 99 roll bar permitted in place of roll cage.

Class by class regulations and requirements racing procedures and. The 2020 nhra rulebook is now online and viewable by all who wish to compete in the nhra arena. Racers start your projects. Nhra roll cage roll cage mandatory in cars running 10 99 6 99 or quicker or any car exceeding 135 mph.

In convertibles running 10 99 or quicker or. 2019 to 2020 jdrl rulebook amendments. Junior dragster racing league rulebook. 2020 rulebook amendments.