Failed my chassis certifcation today....
Failed my chassis certifcation today.... I failed because the main hoop bars aren't tied into the rear frame rails. They are just welded to 6"x6"x.125 plates and welded to the floor pan.. This dude went over my car with a fine tooth comb and a mirror and a flashlight. He's hardcore..
Also, I don't have the "D" bars as he put it, those are the bars that run from the main hooop angled downwards to the tunnel. I think if I would have had those bars he would have passed me. Anyway, that's going to be my fix; install the "D" bars.
Now I have to tow to Montgomery next month so he can look it over and give me that precious little sticker that certifies the car to 7.50.
FWIW, I asked him about the t-top deal and he said that next year, t-top cars would be considered convertibles.. I'm just repeating what he said. His name is Mike Welles
Also, next year the 9.99 to 7.50 certification is going to be changed to 9.99 to 8.50. That's a big jump, but he said really it's just going to be adding some more bars to the cage (funny car cage type deal)..
Happy Hotrodding
Also, I don't have the "D" bars as he put it, those are the bars that run from the main hooop angled downwards to the tunnel. I think if I would have had those bars he would have passed me. Anyway, that's going to be my fix; install the "D" bars.
Now I have to tow to Montgomery next month so he can look it over and give me that precious little sticker that certifies the car to 7.50.
FWIW, I asked him about the t-top deal and he said that next year, t-top cars would be considered convertibles.. I'm just repeating what he said. His name is Mike Welles
Also, next year the 9.99 to 7.50 certification is going to be changed to 9.99 to 8.50. That's a big jump, but he said really it's just going to be adding some more bars to the cage (funny car cage type deal)..
Happy Hotrodding
__________________
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
Re: Failed my chassis certifcation today....
I failed because the main hoop bars aren't tied into the rear frame rails. They are just welded to 6"x6"x.125 plates and welded to the floor pan
FULL frame cars require the bars to extend through the body and be welded to the frame.
Unibody cars require all points to be welded to 6x6x0.125 plates that are welded to the unibody.
Am i missing something??
Re: Failed my chassis certifcation today.... Brady call me monday. The main hoop is how every other F-body is. The "D" bar he is talking about, where are you attaching it to the car????
Re: Failed my chassis certifcation today.... he called them "D" bars because D is the letter designated to them in the diagram in the NHRA rulebook (has bars A-E in this diagram). it reads "D- 1 1/4" x .058" CM or .118 MS mandatory when main hoop welded to plates on floor; must be connected to subframe"
but my question is, isnt your main hoop attached to plates ON the subframe already though? and hes saying you need to run these bars to the floorpan? sounds likes hes got things backwards.
also as others stated, the 2003 book states that "On unibody cars with stock floor and firewall (wheel tubs permitted). the roll cage may be bolted or welded to the floor/rocker box via 6-inch x 6-inch x .125-inch steel plates"
sounds like you should leave the car how it is and make a drive to a different inspector, as well as contact his superior at the NHRA to report this
but my question is, isnt your main hoop attached to plates ON the subframe already though? and hes saying you need to run these bars to the floorpan? sounds likes hes got things backwards.
also as others stated, the 2003 book states that "On unibody cars with stock floor and firewall (wheel tubs permitted). the roll cage may be bolted or welded to the floor/rocker box via 6-inch x 6-inch x .125-inch steel plates"
sounds like you should leave the car how it is and make a drive to a different inspector, as well as contact his superior at the NHRA to report this
Re: Failed my chassis certifcation today.... The guy wasn't in much of a mood to chat about rule interpretations.
This is a pic of the passenger side:
Here is a pic from the rear:
He wants the D bars welded in right above the rear frame rails.. The rear frame rails actually taper off to nearly nothing at the point where he wants the bars welded. Like this (except not purple):
I'm just going to weld the bars in the car, it's not a big deal. I've got to weld the window net in anyways.. The big bummer is I have to travel to get the cage certified..
This is a pic of the passenger side:
Here is a pic from the rear:
He wants the D bars welded in right above the rear frame rails.. The rear frame rails actually taper off to nearly nothing at the point where he wants the bars welded. Like this (except not purple):
I'm just going to weld the bars in the car, it's not a big deal. I've got to weld the window net in anyways.. The big bummer is I have to travel to get the cage certified..
__________________
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
Re: Failed my chassis certifcation today.... ...and yes, every contact point on the cage is welded to 6x6x.125 plates...
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1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
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TECH Regular
Joined: Nov 2001
Posts: 422
Likes: 0
From: Yakima, WA
Re: Failed my chassis certifcation today.... The nice thing about having a top name shop do your cage is the tech inspector can put the tag on it while its at the shop. And even if it isn't *quite* correct, he'll probably tag it regardless, and either not worry about it, or just tell em to add/replace a bar before it leaves the shop.
On my car, The NHRA Division 6 Director came to the shop, and put the tag on w/o even really looking at the car, but when its sitting in Brad Hadman's shop, he knows he doesn't have to.
On my car, The NHRA Division 6 Director came to the shop, and put the tag on w/o even really looking at the car, but when its sitting in Brad Hadman's shop, he knows he doesn't have to.
Re: Failed my chassis certifcation today....
On my car, The NHRA Division 6 Director came to the shop, and put the tag on w/o even really looking at the car, but when its sitting in Brad Hadman's shop, he knows he doesn't have to.
__________________
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
1966 Chevy II twin turbo LS3 project
2016 Z07 Carbon
TECH Regular
Joined: Nov 2001
Posts: 422
Likes: 0
From: Yakima, WA
Re: Failed my chassis certifcation today.... Ouch Low blow! 
Its cool man, I'm gonna make you eat them words very soon.... 
You better just hope you can keep up w/ both of them fairdryers on high before I even turn the bopttle valve open.
Its cool man, I'm gonna make you eat them words very soon.... You better just hope you can keep up w/ both of them fairdryers on high before I even turn the bopttle valve open.
The Bull
Joined: Jun 2002
Posts: 3,578
Likes: 2
From: Grand Rapids, MI
Re: Failed my chassis certifcation today.... Here's a good shot of my "D" bars. You can also see how I the main hoop was put into the floor. I don't know why he gave you a hard time over that.
http://www.derty.org/382SR/cage/DSC00898.JPG
If you go up a level you'll get a page with all of the pics. I'm working on adding the rest of the cage done up soon.
http://www.derty.org/382SR/cage/DSC00898.JPG
If you go up a level you'll get a page with all of the pics. I'm working on adding the rest of the cage done up soon.
TECH Fanatic
Joined: Nov 2001
Posts: 1,308
Likes: 0
From: Indianapolis, IN
Re: Failed my chassis certifcation today.... Brady, my hoops is welded to the floor on 1/8 6 x 6 plates EXACTLY like yours is. I have frame connectors but the hoop wasnt welded to it.
I have the d-bars and they went to the rear subframe area of the backseat roughly in the middle of where the back seat bottom half was. We located where the rear frame attached to the unibody and welded plates and put them there.
I had no problems getting my cage certified by the NHRA guy in the Indy area.
Id say take it to someone else in your Divisional area. Sounds like this guy misinterpretted the rulebook somehow.
I have the d-bars and they went to the rear subframe area of the backseat roughly in the middle of where the back seat bottom half was. We located where the rear frame attached to the unibody and welded plates and put them there.
I had no problems getting my cage certified by the NHRA guy in the Indy area.
Id say take it to someone else in your Divisional area. Sounds like this guy misinterpretted the rulebook somehow.
Re: Failed my chassis certifcation today....
Here's a good shot of my "D" bars. You can also see how I the main hoop was put into the floor. I don't know why he gave you a hard time over that.
http://www.derty.org/382SR/cage/DSC00898.JPG
If you go up a level you'll get a page with all of the pics. I'm working on adding the rest of the cage done up soon.
http://www.derty.org/382SR/cage/DSC00898.JPG
If you go up a level you'll get a page with all of the pics. I'm working on adding the rest of the cage done up soon.
http://www.nu-tekmotorsports.com/cert_upgrade2.JPG
http://www.nu-tekmotorsports.com/cert_upgrade1.JPG
The Bull
Joined: Jun 2002
Posts: 3,578
Likes: 2
From: Grand Rapids, MI
Re: Failed my chassis certifcation today.... There's no reason mine wouldn't pass inspection. The guy that did mine has done dozens of them and all have passed inspection here. For the most part when you mention his name to the inspector he never really checks it out. Like I said, we're going to finish the halo then take the car in for the inspection. I don't anticipate any of the crap that you guys are getting.
Re: Failed my chassis certifcation today.... Brady doesn't have the "D" bars or what I like to call them, the Kicker bars. That is why he failed. If you weld the main hoop to floor plates then the Kickers are mandatory. If his main hoop was welded to the subframes and not on floor plated I think his inspector would have passed the car.
Re: Failed my chassis certifcation today.... I believe after looking at the pics he is talking about the rear down bars not attached to the frame. He put them on the wheel tubs. I can see the inspectors point on that.
TECH Addict
Joined: Nov 2001
Posts: 2,021
Likes: 0
From: Angleton/Lake Jackson (South of Houston)
Re: Failed my chassis certifcation today.... Man there is alot of **** to do. Im glad once i decide to send my car off its going to MADMAN. Im not gonna even try to thank about doing this.
Re: Failed my chassis certifcation today.... Hmmm, my rear bars tie into the area right next to the holes for the seatbelt... Mike from Alston said that moving too far inboard there is no support there, and Mike supposedly is involved with the NHRA.