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Re: Cutting parts away

To: datsun-roadsters@autox.team.net
Subject: Re: Cutting parts away
From: RWM <RWM@rwmann.com>
Date: Wed, 04 Aug 2004 14:07:08 -0400
Craig,

Do you recall what Dave Manzolini's "Swiss cheese"-frame race car weighed?

- Bob Mann



Andy Cost wrote:

>Pat Steinbach purchased a car on Ebay a couple of years ago.  The car was a 
>lightened for racing.  They swear that the car weighs 1100 pounds.  I don't 
>see how this could be beacuse the frame, suspension, rear axle, and motor 
>alone are close to 1100 pounds.  Pat's car has had the front subframe removed 
>and replaced with a couple of thin bars that support the fenders.  I wonder if 
>the motor could be used as a structural member with solid mounts and some 
>braces that run from the upper a-arm mount to the head.  another brace from 
>the upper a-arm mount to the firewall or all the way to the rollcage could 
>provide more stiffness.  It seems that a lighter car would need less bracing 
>than the heavy stock car.
>
>
>-----Original Message-----
>From: John Wightman <johnwightman@shaw.ca>
>Sent: Aug 4, 2004 10:45 AM
>To: 'Andy Cost' <andycost@earthlink.net>
>Subject: RE: Cutting parts away
>
>Andy,
>
>I was looking at doing this also, but for a different reason - to make more
>room in the engine compartment. I don't think the subframe is critical for
>chassis rigidity, given that all the suspension bits are attached to the
>main frame. My current thinking is to remove the subframe, but replace it
>with smaller diameter (1" perhaps) tubing running from a plate bolted to the
>firewall, continuing just underneath the flange where the fenders mount, and
>then turning vertically downwards to meet the main frame right by the rad. I
>think this would save a lot of weight, and still provide support for the
>grille, fenders, etc.
>
>FWIW...
>
>JW






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