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Watch out Bart... was Re: SS brake lines



Better put on your nomex Bart:

First Unka Bart said:

>1)  Catastrophic failure of the brakes on a car is apt to be just that.

Yup, Happens with rubber lines also

>2)  Failure of a brake line *will* result in Catastrophic failure of the 
brakes,

Yup

>3)  Brake lines hidden inside shinny metal sheathing cannot be inspected.

No, but that Shinny metal sheath usually has to be abraded through 
>before< that Teflon hose fails

>4)  Brake lines hidden inside shinny metal sheathing *do* occasionally fail.

see above.

>
>The remainder of this derivation is left as an exercise for the student, 
>but the unanimous wisdom on Porschephiles 

Owning a Porsche DOES NOT mean that you know whats going on.  

>(where one or two serious racers reside) 

The Quattro List also has it's fair share of serious racers.  PDQSHIP 
(Scott) Has raced Pro rally, Showroom Stock and Solo I/II.  I currently 
hold a IMSA, FIA, SCCA, and SVRA license, Teach for Skip Barber Racing 
and the Qclub, Engineer and function as test driver on a Trans-Am car, 
and will be testing a Touring call this September at Road Atlanta.  
Graydon Stuckey Races and Engineers, AUDIDUDI is building 2 Race cars, 
This is only a few of "our" racers.

>is  that these things are great for the track, but *NEVER* to be used on the

>street. Track toys get torn down regularly, and these lines get replaced 
regularly.

Not nearly as regularly as you would think.


Then Graydon said what I was about to say:

>	The question about reliability is valid, but they are generally 
>not too bad if you pay attention to your car like you should.

When was the last time you looked at your brake lines to see if the 
rubber was soft or abraded.
That liquid gold that we put in our power steering system EATS rubber 
like you would'nt belive.

>	If GM decided to use SS lines, they would do the necessary 
>testing to get them DOT approved.  The point is, the SS lines are far too 
>expensive to be installed on a mass-produced car.  That is why the 
>manufacturers don't use them.

Thank you Graydon.

Nomex off.

Eric Fletcher
'87 5KCSTQIA2RSR