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Old Mar 19, 2008 | 02:39 PM
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Default c3 rollbars

Guys- I was wondering if there is room to install the little rollbars behind the seats of a c3? thanx wade
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Old Mar 19, 2008 | 02:45 PM
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Originally Posted by wadey
Guys- I was wondering if there is room to install the little rollbars behind the seats of a c3? thanx wade
Do you mean the double hoop design or a real roll bar for racing?
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Old Mar 19, 2008 | 02:46 PM
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http://forums.corvetteforum.com/show...ight=shark+bar
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Old Mar 19, 2008 | 04:55 PM
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Custom Autopower roll bar.

Bee Jay
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Old Mar 19, 2008 | 08:28 PM
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Bee Jay, how easy was that bar to install? I've looked at their bars a few times and have debated buying one of them. Does it weld directly to the frame or is there any custom fabrication that needs to be done?

Also, do you have a side view picture? I have a 76 with the flat back window and am wondering how it would fit.

Thanks,
Jason
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Old Mar 19, 2008 | 08:57 PM
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Originally Posted by Jason Staley
Bee Jay, how easy was that bar to install? I've looked at their bars a few times and have debated buying one of them. Does it weld directly to the frame or is there any custom fabrication that needs to be done?

Also, do you have a side view picture? I have a 76 with the flat back window and am wondering how it would fit.
I had the same question. I know I read that you "trimmed" it a bit to fit, but would it fit in a 78-80 C3 without the trimming.
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Old Mar 19, 2008 | 10:13 PM
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That's what I've been screwin' with for the last couple weeks.
I just wanted something just to bolt harnesses to. Got a 4 pt. from a guy dirt cheap from a vert.
By the time I got done cutting and welding on it, It would have been easier to start from scratch

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Old Mar 19, 2008 | 10:47 PM
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how do you get the rear window out?
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Old Mar 19, 2008 | 10:51 PM
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Originally Posted by Bee Jay
Custom Autopower roll bar.

Bee Jay

thats no shark bar.............
I like this
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Old Mar 19, 2008 | 10:55 PM
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Originally Posted by brngrhd
how do you get the rear window out?
You don't.....never did so I won't miss it
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Old Mar 19, 2008 | 11:29 PM
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Originally Posted by Jason Staley
Bee Jay, how easy was that bar to install? I've looked at their bars a few times and have debated buying one of them. Does it weld directly to the frame or is there any custom fabrication that needs to be done?

Also, do you have a side view picture? I have a 76 with the flat back window and am wondering how it would fit.

Thanks,
Jason
I bought the 63-82 Corvette roll bar from Autopower back around '89 or '90. But when I got it home, it was too tall. I'm 6' tall and needed the roll bar mounted back where you see it. It prolly would have fit a 63-67 just fine. I contacted Autopower, and they built me a new one 2" shorter overall. My helmet sits higher than the bar, but I only do the ocassional autocross. I had a weld shop in LA weld in all four points, so I won't be doing a body off any time soon. It really stiffened the chassis. A very noticeable difference. I'm not sure if it would fit a '68-'77 sugar scoop rear window, but those years are covered in their catologue.
Bee Jay

Last edited by Bee Jay; Mar 19, 2008 at 11:31 PM.
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Old Mar 21, 2008 | 05:43 AM
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Thanks for the infor Bee Jay. I'm struggling with how to get one in my car because I'm a bit tall like you (6'2") and my roll bar needs to be right up against the glass or I will hit it in a crash for sure. I'll probably have to get one custom bent to fit as tight as possible. I'm not worried about it being legal for any racing sanction body, because this is my street car that I just play with. I've even debated about using the smaller 1 5/8" tubing that is commenly used in full roll cages.

That roll bar of yours does look sweet though. Nice job.
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Old Mar 21, 2008 | 08:59 AM
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Originally Posted by Jason Staley
Thanks for the infor Bee Jay. I'm struggling with how to get one in my car because I'm a bit tall like you (6'2") and my roll bar needs to be right up against the glass or I will hit it in a crash for sure. I'll probably have to get one custom bent to fit as tight as possible. I'm not worried about it being legal for any racing sanction body, because this is my street car that I just play with. I've even debated about using the smaller 1 5/8" tubing that is commenly used in full roll cages.

That roll bar of yours does look sweet though. Nice job.
If you are 6'2", the only way that you will be safe in case that you roll over, even with a roll cage, is to install a lower seat or lower your seat somehow. You will have to lower your seat position by at least 3 - 4 inches.
NHRA for example requires that the top of the helmet has to be 3+ inches below the top of the roll bar or roll cage main hoop. If you are 6'2", your helmet is probably close to hitting the roof (with stock seat position) and is therefore at the same height or higher than the main hoop. You need at least 2 inches clearance from the top of your helmet to the top of the main hoop for the roll bar/cage to save you in case that you roll. Don't forget, a helmet adds about 1.5 inches on top of your head.. I have 4.5 inches clearance without the helmet and barely 3 inches with my helmet on and my seat is basically on the floor.

Last edited by GrandSportC3; Mar 21, 2008 at 09:02 AM.
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Old Mar 21, 2008 | 12:10 PM
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Originally Posted by GrandSportC3
If you are 6'2", the only way that you will be safe in case that you roll over, even with a roll cage, is to install a lower seat or lower your seat somehow. You will have to lower your seat position by at least 3 - 4 inches.
NHRA for example requires that the top of the helmet has to be 3+ inches below the top of the roll bar or roll cage main hoop. If you are 6'2", your helmet is probably close to hitting the roof (with stock seat position) and is therefore at the same height or higher than the main hoop. You need at least 2 inches clearance from the top of your helmet to the top of the main hoop for the roll bar/cage to save you in case that you roll. Don't forget, a helmet adds about 1.5 inches on top of your head.. I have 4.5 inches clearance without the helmet and barely 3 inches with my helmet on and my seat is basically on the floor.
I totally agree, and that is in the plans eventually. My floor is pretty well rusted and needs to be replaced in the next couple of years. When I do that, I plan on welding in the replacement floor a couple inches lower. I would also love to figure out a way to move the pedals forward a couple of inches for decent leg room.
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Old Mar 21, 2008 | 01:06 PM
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Default Adding more leg/headroom for a rollbar.

mrvette had some interesting techniques for lower his seat and adding more leg room at the front footwell in this post:
http://forums.corvetteforum.com/show....php?t=1880500
I'd like to try something like that with my '70. I think you could move the footbox forward a few inches, as well as lowering it some. The trick would be remounting the gas/brake peddle in the elongated footbox. How much do you think the seatwell could be lowered?
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