Re: alfa-digest V7 #688 - Roll Bar Requirments

[AlfaNeely@domain.elided]

Brian,
	The AROC Competition Code mirrors the SCCA requirements almost 
exactly.  I suspect that they may have even been copied, but I did not say 
that.  The AROC Competition Code is available at the AROC Web Site:
http://www.aroc-usa.org/main.html#US AROC Website
	The competition code is specifically at:
http://www.aroc-usa.org/comp_code/ar_comp_code_contents.htm

	I have an SCCA GCR sitting right here if you have any specific 
questions.  However, it no longer covers roll bars, only roll cages.  The 
SCCA Solo I rules reference an older GCR, which I also have if you need it.  
However, for a spider the rule is basically 1.75 x 0.120 wall mild tubing 
minimum for a roll bar.  That is for DOM or drawn over mandrel tubing.  If 
you use ERW or Electric Resistance Welded tubing, which is weaker, you need 
to go heaver.  Requirements for alloy tubing are less, but harder to form and 
weld.
Ciao,
Russ Neely
Oklahoma City


 Date: Tue, 4 May 1999 23:15:29 -0400
 From: "Brian Shorey" <bshorey@domain.elided>
 Subject: scca roll bar rules
 
 iim almost done with the autopower race bar installation in my spider, will
 provide a full report when it's completed.
 
 in the meantime, spider owners are scrambling to make their cars legal for
 the upcoming lime rock event.  a friend has just realized that he's got to
 do something about his, and has got some in-laws that can help him fabricate
 one.
 
 can anybody point me to something on line that might describe scca rules
 (tubing diameter, thickness, etc)?
 
 tia,
 
 bs >>

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