This particular mustang is being built to meet sfi standard 25 3b which is for full bodied cars either unibody or tube frame looking to run under 7 50 seconds but no faster than 6 50.
6 point roll cage nhra.
Our most common customers drive mustangs chargers challengers camaros nissan gt r s and corvettes but we can manufacture roll bars for a wide variety of vehicles.
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.
Vehicles running 6 39 e t.
I am going to explain the key rules and requirements on building a 10 point or 8 50 and slower roll cage for unibody vehicles per the 2010 nhra rule book.
Racers start your projects.
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.
Full bodied cars running between 6 40 and 6 99 with unaltered firewalls floor and body from firewall rearward wheel tubes permitted can compete with just a roll bar.
6 point roll bar sfi approved seat belts 10 99 seconds 6 99 1 8th or super street sfi 4 1 transmission shield or at 135 mph locking transmission dipstick tube aftermarket axles and axle retainers sfi harmonic balancer roll cage with altered floor pans or 135 mph window net required.
Class by class regulations and requirements racing procedures and.
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5 or 6 point rollbar construction nhra legal required beginning at 11 49 with a closed car truck 13 49 with a convertible.
The basic 4 point roll bar consists of a main hoop behind the driver two rear struts and an optional cross brace on the main hoop should you need it or the rules.
Rpm roll bar is the only roll bar that is 100 welded and completely removable.
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I could easily write an article five times this size when it comes to explaining how roll cages work in a variety of ets and car configurations.
Once the inspector approves the rollcage he will apply a non transferable dated sticker on the passenger side of the cage s main hoop.
A roll cage vs a roll bar vs a 6 point cage if this is your first visit be sure to check out the faq by clicking the link above.
Elapsed time and quicker require a nhra competition license.
Roll cages required on all cars running 6 99 or faster than 135mph.