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Re: roll cage

To: land-speed@autox.team.net
Subject: Re: roll cage
From: ARDUNDOUG@aol.com
Date: Mon, 4 Mar 2002 11:33:53 EST
In a message dated 3/4/2002 7:23:22 AM Pacific Standard Time, 
LGMCAFEE@aol.com writes:


> I have been putting on the finishing touches on my roll cage and have a few 
> question to ask. The rule book says to weld a gusset at the junction of 
> hoops 
> and shoulder rail. Does this gusset need to be at the top and at the bottom 
> of the shoulder rail? 
####################################################################
Larry,
       My interpretation is that it's on the top of the shoulder rail. This 
is to keep the top hoop from tearing off of the shoulder rail if the car gets 
inverted and the hoop "digs-in" to the racing surface. My car(s) have been 
done this way and nobody in Tech had any comments. This change was added 
after a guy rolled a lakester years ago at El Mirage and the top hoop(s) were 
torn off. I believe that the car was a retired RED that had been converted to 
LSR. The "A" frame front end restriction(s) might have come from this 
accident also.
       I can't address the "stitch" welding on one side question. Dan or Mike 
Manghelli might have some input........................Ardun Doug King
#####################################################################

Also the book recommends welding the gusset on the 

> outside and stitched welded. Why would this be better than centering the 
> gusset in the center of the pipe and weld both sides solid? Its going to be 
> almost impossible to see to weld the the gusset on the outside. I just 
> don't 
> understand why the outside is better. Thanks Larry Mac


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