<VV> Early drums from Z car

[Kenneth E Pepke]

Remember that brakes 'work' by converting energy of motion
to heat energy ... rapidly collected in the mass of the drum or
disc then dissipating that heat into the air over a period of 
time.  Reduction of the mass reduces the drum or discs ability
to store heat.  It is the reason that a drum or disc has a limit
on how much it can be resurfaced.

The Datsun was a much lighter vehicle which reduces the heat
generated and the need for the mass required for a heavier 
vehicle.

Ken P


On Tue, 4 Nov 2008 17:32:01 -0500 Bryan Blackwell <bryan at skiblack.com>
writes:
> Hi all,
> 
> For those of you that are interested, I picked up a couple of early  
> 
> (70 - 78) Datsun Z car drums today.  Dimensionally they're pretty  
> close (the shoes are the same size) to early drums.  The center hole 
>  
> is just a tiny bit too small, so I'll have to get them opened up to  
> 
> the Corvair dimension when I have them turned.  Best part is the  
> weight - 13 pounds for a pair.  Clark's lists early drums at 17  
> pounds *each*.  I'll weigh both on my bathroom scale when I get a  
> chance to be sure.
> 
> --Bryan
> 
> Bryan Blackwell bryan at skiblack.com
> http://autoxer.skiblack.com/
>    Corvairs: '61 Lakewood, '64 Greenbrier, '65 Corsa, '66 Corsa
>    '69 Road Runner, '97 Ford F-150, '99 Neon R/T
> "Why do something if you're not going to obsess about it?"
> 
> 
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