What roll cage do i need? What are the different types?
Instructor
Joined: Jan 2001
Posts: 183
Likes: 0
From: crestwood KY
Cruise-In II Veteran
Cruise-In VII Veteran
Originally Posted by marlowchris
I just re-read the NHRA requirements and I could not find anywhere discussing powdercoating. Maybe I missed it, can you point out the section. Also how does the powdercoating weaken the metal. I did not think the heat involved in powdercoating was high enough to affect the grain structure of steel. I have seen a lot of powdercoated and painted bars at the track.
Section 4:11 (roll cage) in the general regs cover this! It states and I quote
"Plating of chassis prohibited for all cars manufactured after 1/1/2003."
Powder coating is considered plating. If you powder coat the chassis or cage, there is a chance the metal could crack while the powder does not. Would you really want a cage that was cracked but you didn’t know because it was powder coated?
Hope this helps some!
PS. You can get the bars powder coated as long as you don't have the cage certified. Most tracks don't check to see if the cage or bars are certified.
Last edited by Green Monster; May 26, 2005 at 10:08 PM.
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
Green.. Thanks for the info, I have never heard that before. My copy of the NHRA requirements is old and does not have part in section 4.11. So that must be something they have added. The explanation makes sense. The process does not weaken the bars, but might conceal a crack. So I would assume a painted bar is acceptable. Paint would not be thick enough to conceal a crack. Good stuff in this post.
Instructor
Joined: Jan 2001
Posts: 183
Likes: 0
From: crestwood KY
Cruise-In II Veteran
Cruise-In VII Veteran
Originally Posted by marlowchris
Green.. Thanks for the info, I have never heard that before. My copy of the NHRA requirements is old and does not have part in section 4.11. So that must be something they have added. The explanation makes sense. The process does not weaken the bars, but might conceal a crack. So I would assume a painted bar is acceptable. Paint would not be thick enough to conceal a crack. Good stuff in this post.
Racer
Joined: Aug 2003
Posts: 401
Likes: 0
From: Aiken sc
Originally Posted by mdhmi
Really depends on the track. I've seen some set the hardtop limit at 11.99 and others set it at 11.50. Verts are a different story entirely.
Mark
Mark
jay
Racer
Joined: Dec 2004
Posts: 355
Likes: 1
From: Bergen County NJ
Originally Posted by bobby-rollbar
well technically the rule was changed and your good till 11.50... so if your getting tossed from a nhra track for not having a roll bar and your running 11.50 and slower i would have a talk with who ever runs the track... and i believe if its an ihra track they have all ways been 11.50 and slower,hardtop cars dont need a roll bar..
jay
jay
Team Owner
Joined: Oct 2001
Posts: 46,762
Likes: 5
From: Boynton Beach Florida
St. Jude Donor '07-'12, '20
Originally Posted by vetteamerica
What about a targa top coupe??
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