Wheel tubs in Super Stock
 

I left a message with NHRA tech but their at the races right now. I've been told the rule regarding wheel tubs (must be steel, same gauge as factory) has been modified to allow the use of aluminum tubs. But I can't find reference to that in the rule book. Is aluminum allowed (or carbon fiber), and if so, where is it noted?
Another question. Is a full length one piece tub allowed in a car that came equipped with a trunk (unlike the 'vettes)? I've heard of at least one SS 1st gen Camaro with this feature. I like the idea of a carbon fiber tub as there would be no rock dents like aluminum and a full one-piece tub offers more room on the underside to work around. I can't imagine carbon fiber is any lighter than aluminum.

Re: Wheel tubs in Super Stock
 

Must be steel
aluminum ok for back piece and package tray ie firewall to trunk area.
For SS must have original floor between frame rails.
For GT original floor not required between frame rails.
Material must be same thickness as original

Re: Wheel tubs in Super Stock
 

i wonder if you'd put steel tubs in a vette............

Re: Wheel tubs in Super Stock
 

Chad,
I wouldn't!

Re: Wheel tubs in Super Stock
 

We did hand made fiberglass tubs in our 'Vette back in '89 with no objections.

Re: Wheel tubs in Super Stock
 

Jeff, I've seen several cars done this way in SS. ...It really makes sense in a car like the AMX because of the short wheelbase and no room behind the seat area..........The tubs were made big enough to cover the 4 -link . .....Tom

Re: Wheel tubs in Super Stock
 

In Stock and Super/Stock the tubs and floor modifications must be solid welded if the car is steel. Aluminum, Carbon Fiber would need to be bolted and or riveted and that is not allowed. I was told by a very senior NHRA offical that I would have to use steel for a removable trans tunnel (in S/S your allowed 6 Sq. Ft. removable) in a fiberglass car (60 Corvette). I think the Corvette stuff of todays racing is kinda uncharted territory. There aren't that many cars out there. And the average offical just does'nt know that much about them.

Here is my answer to tubs in a Corvette

http://i41.tinypic.com/15dnq5j.jpg
http://i42.tinypic.com/2j4szeg.jpg
http://i43.tinypic.com/2jfxbn5.jpg

Re: Wheel tubs in Super Stock
 

If NHRA held you to this wording, wouldn't that mean that steel tubs installed in a Corvette would need to be 1/4" thick at least, to match the stock fiberglass wheelwell thickness? Yikes!

Wade, I have been on your site and following your Corvette build, and you exhibit great workmanship. Those wheel tubs are very nicely done. When we put tubs in a '57 Corvette many years ago we used sectioned fuel drums as molds......and the end result looked it too! Not one of our prouder achievements......

Re: Wheel tubs in Super Stock
 

Wade.....1st class craftsmanship on that '60 Vette of yours......hope it hits the track this season. WJ

Re: Wheel tubs in Super Stock
 

I know this is an old post, but do the steel wheel tubs have to be welded in or can they be riveted?