[Fot] Weight Reduction TR3-4

Larry Young cartravel at pobox.com
Tue Jul 3 20:19:36 MDT 2012


The previous owner of my TR3 (now John Hasty's) cut out the entire spare 
tire carrier sheet metal when he installed a fuel cell.  That was a lot 
of sheet metal and weight removed.  The car weighed about 1925 lbs even 
though it had some other heavy components on it.  As with most POs he 
did the job very poorly and removed all the structural integrity also, 
but I was able to redo it to give structural integrity along with the 
weight reduction.  Don't really know whether it was legal, except that 
most organization want it to weigh 2000 lbs.
Larry


On 7/1/2012 6:01 PM, Barry Munson wrote:
> Amici -
>
> As I have proceeded through Barnie's - 1959 TR3A -  evolutionary process
> from a derelict barn-find to a vintage racer over the last two years, one of
> the initial questions that I was faced with was related to the issue of
> weight reduction. The question of how much and where could I reduce the
> weight and remain compliant with the requirements for originality of the
> majority of vintage racing organizations, while not compromising either
> safety or performance, was forefront in making decisions. So things like the
> addition of fiberglass components, changing the frame to a TR4, increasing
> the width of the fenders or the addition of flares were not considered. What
> I was looking for were areas that I could substitute alloy components for
> stock iron ones, use of components that were available on later models of
> the TR3 line and offered weight saving options. Over the last two years I
> have been able to reduce the weight by 104 pounds simply by acquiring
> bolt-on parts. Of course knowing what is available, its source and cost has
> been the key and I have to thank many from this list for that knowledge.
>
> The 104 pounds was achieved in the following major component breakdown:
>
> Engine - 61.0 lbs
>
> Chassis - 11.0 lbs
>
> Front Suspension - 16.0 lbs.
>
> Rear Suspension - 16.0 lbs.
>
> In addition to the weight reduction that was achieved, many of the
> components offered additional benefits in terms of safety and performance.
>
>   
>
> I have prepared a component by component table showing how and where this
> reduction in weight was achieved, however it is much too long for team.net
> therefore if anyone would like to receive a copy please just ask and I will
> forward one immediately. I can also supply the source and cost for any of
> the components. I have checked the archives for such a compilation and
> couldn't find one - that doesn't necessarily mean that it's not there..
>
>   
>
> Barry.
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