Roll Bar/Cage Question
Thread Starter
Burning Brakes
Joined: Aug 2000
Posts: 1,063
Likes: 79
From: West Chester PA
Roll Bar/Cage Question
Probably been discussed, but is the HNRA requirement for a 6 point cage for cars running under 11.49 but higher than 10.0? Is it required to be welded to the frame? Thanks.
Melting Slicks
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
For cars running 10.999 or faster you’re also supposed to have a transmission blanket installed but apart from a few warnings about it I’ve managed to avoid having to install one.
In all instances the cage must be welded to the frame of the car. If you do a search on my username I started a thread last year which has some pictures of my cage.
Hope that helps,
Christopher
Le Mans Master
Joined: May 2002
Posts: 5,446
Likes: 1
From: 10.70 @ 124mph, Stock Bottom End @ 3620lbs, ECS Racing Team Member. The 1st NMCA LSX Index Rumble World Champion. 2011,12,13 Champion
I have a WOLF bolt in 5 point roll bar. It has passed all tech inspections with the knowledge of it being a bolt in bar. If you read and also call the NHRA, it can be explained how a bolt in bar is allowed. Before I bought my bar, I did some research to make sure it would be allowed.
Le Mans Master
Joined: Feb 2004
Posts: 8,629
Likes: 16
From: York PA
A 5-point cage is required for cars running faster than 11.49 (for convertibles it’s 13.49). Once you start running faster than 9.99 or trap more than 135MPH you need a 8-point cage along with a few other additional items.
For cars running 10.999 or faster you’re also supposed to have a transmission blanket installed but apart from a few warnings about it I’ve managed to avoid having to install one.
In all instances the cage must be welded to the frame of the car. If you do a search on my username I started a thread last year which has some pictures of my cage.
Hope that helps,
Christopher
For cars running 10.999 or faster you’re also supposed to have a transmission blanket installed but apart from a few warnings about it I’ve managed to avoid having to install one.
In all instances the cage must be welded to the frame of the car. If you do a search on my username I started a thread last year which has some pictures of my cage.
Hope that helps,
Christopher
Le Mans Master
Joined: Feb 2004
Posts: 8,629
Likes: 16
From: York PA
That's why roll bars should be welded to the frame, instead of bolted to some thin fiberglass. Your only kidding/hurting yourself.
Racer
Joined: Jun 2006
Posts: 250
Likes: 0
From: SLC UT
St. Jude Donor '08-'09
Autocross & Roadrace Forum Sponsor
There is no way I'd bolt a cage to fiberglass and expect it to do anything! 
We're working on a complete C6 cage that is pre-bent and notched! Simply weld the tubes in the car and bolt it down!
You can follow the build of our C6 Z06 HERE.
