Well I welded together my roll cage i made myself. Thoughts? I also have 15ft of pipe left or so, so any suggestions to add onto my cage?
Generally I would think the sanctioning body you are install it for determines what is needed. If your installing it for say drag racing then it needs to meet the minimum requirements for NHRA general regulations 4:10. If that's the case you need a little more work but not much, at this point it's a bolt in Roll Bar. If it's for street use I would recommend removing it unless you want to wear a helmet to protect your head. Just my thought I'm sure people will add more
Its 11 gauge tubing so around .12 in thick. I just have it bolted trough the floor with quarter inch plates on the bottom. And Rick, i was thinking about adding roll cage padding covers.
I`m pretty sure the IHRA & the NHRA regulations state .134 tube thickness,that`s what is in mine,& they will drill a hole in it to ck when you get certified.
Section 4.10 of the NHRA rules says mild steel has to be .118 thick. Most people that build/sell roll cage or roll bar kits sell it in .134 thick. The reason is that the tolerance in manufacturing can have tubing as thin as .105 sold as .120 wall. Most sell thicker tubing to cover their butts. If it's a roll bar there are rules for all tube sizes and thicknesses. Main hoop has to be 1.75 diameter and .118 thick. Google NHRA roll cage thickness and it will bring up a rule book, check out section 4.10. SPark
If the car does not run quicker than 11.49 in the quarter then it doesnt matter because it isnt required. Been there done that, I had full cage in a car that wasnt up to specs but put in just for my peace of mind never had any issues with tech after they ask me what times the car ran. I am not saying that some tech inspector wont get picky but just my experience at several tracks
if the roll cage is put in "for peace of mind "why not have it to a (known) safety standard? if not...PVC pipe...wrapped in blk. tape would be easier to work with...
The issue with it not being legal was it was welded with an arc welder and not mig or tig and I chose not to have the door bars due to hassle getting in and out of car. Car was a 61 Falcon and I feel unibody cars can use all the help they can get to stiffen them up which it did. Car was never built to go fast enough to be required to have cage or bar. In the event of a roll over it would have held just fine
was this ever tested or just your thoughts on it working? I don't think it has to go fast to roll over, cars roll over several times at highyway speeds...
OP, can I ask why you built this style of roll bar for the car? Drag race, road race, added safety on the street, or purely aesthetic reasons? There is no WRONG answer. Are you looking for feedback on the design, quality of installation, color choice? Knowing that will help people to answer your question about adding material to your roll bar. Thanks, Carl
