How are roll-bars typically made/purchased?

[rocco16v at netzero.net (L F)]

Jeff,
 A simple four-point roll bar will not stiffen the chassis to any significant degree. 
As far as minimum gage, this would apply only if you are building to a particular race sanctioning body's rule book.  if you aren't racing, don't worry about it.  I wouldn't go under .062" wall thickness, .080" would be better/heavier/more costly. 
 I'd have one custom built, if it were me.
And I'd have a good welder install it. (although with a hardtop, you could get away with bolting and bolting WOULD let you remove it more easily)
Mostly personal opinions here, but I've built race cages before. 
  ----- Original Message ----- 
  From: Jeff Toomasson 
  To: scirocco-l@scirocco.org 
  Sent: Friday, July 11, 2003 1:08 PM
  Subject: How are roll-bars typically made/purchased?


  Most likely I'm going to have to have a simple roll-bar setup when I do my ragtop to prevent undue stress to the roof from chassis flexion.

  Honnold mentioned that he got a "Autopower" setup, but I don't get anything when search for that in Yahoo. Went to the .org for various links to racing sites and got nothing (BSI, Shine...). I don't see any at some of the tuners' sites I've checked either...

  Are they typically custom-made? Is there a minimum tubing gauge that must be observed? I'm assuming it's better to have them bolted in as opposed to welded...

  Also, should I have it installed when I have the car painted? Or do it after?

  Thanks in advance!  Jeff
  _______________________________________________
  Scirocco-l mailing list
  Scirocco-l@scirocco.org
  http://neubayern.net/mailman/listinfo/scirocco-l