1991 rollcage needed
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Instructor
Joined: Oct 2008
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From: Townsend TN
1991 rollcage needed
Help! Need to get my C4 ZR-1 vette caged. In East TN - looking for someone to install/construct NASA legal rollcage for ST-2 rules. Will also look at SCCA reg builder as option. Any suggestions? 
Suckin' gas, haulin' ass.
Joined: Apr 2010
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From: Newport News Virginia
Take a look at Autopower cages. You may want to do something different with the door bars, but I have one and it fit pretty well. I did do the NASCAR style door bars in mine though.
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Instructor
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From: Townsend TN
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Max G’s
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From: Monroe OH
NCM Sinkhole Donor
It would probably be best to post in the Autocrossing/RoadRace section. More guys over there running NASA. Sounds like you want an actual cage not a roll bar? I know some guys that could probably help you here in OH, but not in TN.
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I know folks in VA and GA
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From: Townsend TN
Melting Slicks
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A friendly word of advice (from someone who has installed an Autopower Bar) - before you start the install, place the bar that lives over the drivers head in place, and see if you still fit in the driver seat. In my case, my head (with helmet) and the bar, and part of the roof panel all wanted to occupy the same space. That doesn't work !!! I ended up just installing the four point bar - not the 6 point.
Another "tip" is that in order to install the bar - you're going to need to cut through about half a square foot of the SMC interior on each side to get access to the frame for both the bar and for the welder head. A die grinder with a carbide rotary cutter works great (it would help to have someone running a shop vac while you do the cutting - the amount of dust you create is really amazing), but if you have a pristine car - this step is going to bring tears to your eyes.... You can patch up the carpet to look quite good after the bar is installed - but the car won't be weathertight anymore.
Another "tip" is that in order to install the bar - you're going to need to cut through about half a square foot of the SMC interior on each side to get access to the frame for both the bar and for the welder head. A die grinder with a carbide rotary cutter works great (it would help to have someone running a shop vac while you do the cutting - the amount of dust you create is really amazing), but if you have a pristine car - this step is going to bring tears to your eyes.... You can patch up the carpet to look quite good after the bar is installed - but the car won't be weathertight anymore.