NHRA Rollcage
#1
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NHRA Rollcage
Hello Honda tech, I have been looking around trying to find what rollcage rules are for 9.00 seconds with no luck. Does anyone have pictures of examples that I can use. Thank you in advance
#2
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Re: NHRA Rollcage
Buy the NHRA rule book. Has all the requirements and diagrams that you'll need.
#3
Honda-Tech Member
Re: NHRA Rollcage
10.00 and slower is 6 point cage As per NHRA general regulations. Anything faster isn't NHRA spec anymore but SFI.
Pretty sure its SFI 25.5B cert. but that might be for even faster. Don't have an sfi book because I'm far from ever needing one.
Hope this gets you in the right direction.
Pretty sure its SFI 25.5B cert. but that might be for even faster. Don't have an sfi book because I'm far from ever needing one.
Hope this gets you in the right direction.
#4
Honda-Tech Member
Re: NHRA Rollcage
My last post may be referring to roadsters. Sorry for confusion.
Just Google "NHRA general regulations" and download the pdf. Its roughly page 21in that download.
Just Google "NHRA general regulations" and download the pdf. Its roughly page 21in that download.
#7
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Re: NHRA Rollcage
AZ_CIVIC you get you car tuned at Locash so you may have seen the car that I am building now. Its the black EG hatch that was rolling around Joe's shop for awhile. It has a six point cage in it already, I was looking at your build thread and saw the two front down bars coming off what would be the halo but where are the other two points? I can only see main hoop, door bars, back kickers , and front down bars.
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#8
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Re: NHRA Rollcage
There are a couple other key points- The horizontal bar (behind both front seats and at base of main hoop)
This bar is sometimes welded to the main hoop (incorectly), however the rules say this should be welded to drivers side and passenger side kick panel to provide lateral rigidity.
This bar is sometimes welded to the main hoop (incorectly), however the rules say this should be welded to drivers side and passenger side kick panel to provide lateral rigidity.
#9
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Re: NHRA Rollcage
AZ_CIVIC you get you car tuned at Locash so you may have seen the car that I am building now. Its the black EG hatch that was rolling around Joe's shop for awhile. It has a six point cage in it already, I was looking at your build thread and saw the two front down bars coming off what would be the halo but where are the other two points? I can only see main hoop, door bars, back kickers , and front down bars.
#10
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Re: NHRA Rollcage
This is the cage that is in the car currently. Ron Burgandy, you kinda have me worried(hahahahaha) because the lower horizontal bar is welded to the main hoop.
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Re: NHRA Rollcage
To my knowledge The lower cross bar has to go to the rockers if the floor plates are only on the floor and the main hoop is welded straight down to those plates. If the plates are welded to the floor and to the rockers then the cross bar can go to the main hoop like pictured above. I'm about 90% sure that's how I read that. Been a while
The bars angled down off the main hoop toward the center are supposed to go to plate welded to the tunnel or to the cross brace under the seat area from my understanding but that might be only if the main hoop plates aren't to the rockers
Also depends on the inspector what they do or don't like. Sometimes those technicalities will pass cert or so I've read.
The bars angled down off the main hoop toward the center are supposed to go to plate welded to the tunnel or to the cross brace under the seat area from my understanding but that might be only if the main hoop plates aren't to the rockers
Also depends on the inspector what they do or don't like. Sometimes those technicalities will pass cert or so I've read.
#14
Honda-Tech Member
Re: NHRA Rollcage
To my knowledge The lower cross bar has to go to the rockers if the floor plates are only on the floor and the main hoop is welded straight down to those plates. If the plates are welded to the floor and to the rockers then the cross bar can go to the main hoop like pictured above. I'm about 90% sure that's how I read that. Been a while
The bars angled down off the main hoop toward the center are supposed to go to plate welded to the tunnel or to the cross brace under the seat area from my understanding but that might be only if the main hoop plates aren't to the rockers
Also depends on the inspector what they do or don't like. Sometimes those technicalities will pass cert or so I've read.
The bars angled down off the main hoop toward the center are supposed to go to plate welded to the tunnel or to the cross brace under the seat area from my understanding but that might be only if the main hoop plates aren't to the rockers
Also depends on the inspector what they do or don't like. Sometimes those technicalities will pass cert or so I've read.
#15
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Thread Starter
Re: NHRA Rollcage
The main hoop is perpendicular to the floor and the plate the main hoop is welded to is rather large and stops at the rocker, I don't know if that makes a difference.
AZ_CIVIC may I ask who built your cage?
AZ_CIVIC may I ask who built your cage?
#16
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Re: NHRA Rollcage
From there Joe called up a guy they normally use for the NHRA certifications and got the car 8.50 certified.
Nick also did my parachute mounting, window net and built me a real nice slider kit for my Kirkey seat. He has done all the fabrication and welding for my car and does excellent work, including my dump tube, manifild, downpipe, intercooler setup.. LOL the list goes on.
I also think those bars coming down from the main hoop to the tunnel are welded to a plate on the tunnel like mentioned above.
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