460 Ford Forum banner

1 - 7 of 7 Posts

·
Registered
Joined
·
1,979 Posts
Discussion Starter #1
What's the tubing size requirement for the bars that run forward from the a-pillar bars, through the firewall to the strut towers or frame? I can't find any info on them in the 2008 NHRA Rulebook.

Also, the rulebook states I can substitute a single 1 5/8" door bar for an X-brace that consists of (2) 1 1/2" tubes. Is that right, or is only the lower bar allowed to be 1 1/2?

Thanks in advance?
 
N

·
Guest
Joined
·
0 Posts
what are you trying to do maybe i can help you out a little more what et are you trying to run in? Jason
 

·
Registered
Joined
·
1,979 Posts
Discussion Starter #5
Thanks,

Just looking to cert to 8.50 and slower. Just curious on the X brace. I plan to X it and just wanted clarification on the bar reqs.
 

·
Registered
Joined
·
391 Posts
i dont think there are any limits on tube size for anything that isnt part of the "main structure".. as long as the 8 or 10 pt part meets the clas rule, anything else will do for whatever.. i would use 1.3/4 chromoly for anything up front..
 
1 - 7 of 7 Posts
Top