[s-cars] Looking for BTDTs replacing the seals on Big Reds...

[Jerry Scott]

I have found that running with a .035 in. stainless shim behind the pad, 
helps to shield the heat from getting into the caliper.  You may have to 
wear the pads in a bit before it will go in, but it worked well for me.  
I just cut it out with a dremel tool to the same outline as the backing 
plate.  Some of my friends have had them made out of .035 titanium.
Jerry

Kevin Day wrote:

>Thanks for the comment, Jerry.  The odd thing is, I've run these
>brakes on 15 or so track days, most of them with much more aggressive
>pads (I was running PF 01 race pads up until recently), with no issues
>until now.  This last time I ran these Hawk HPS street pads and had
>much lower brake temperatures (as judged by the lack of bubbling wheel
>paint and other qualitative data.)  But the pads were much thinner, so
>I figured that probably had something to do with it.  I've also since
>read about people shimming pads when they get thin to keep the pistons
>from extending too far.
>
>On 9/17/07, Jerry Scott <jerryscott at wispertel.net> wrote:
>  
>
>>This is normal for a track car.  The outer seals get toasted on just
>>about any car that is run on the track.  I have tracked a Viper and have
>>to change the seals two times.  Many track cars run the brakes without
>>the outer seals for this reason.
>>Jerry
>>
>>
>>Kevin Day wrote:
>>
>>    
>>
>>>I managed to melt the outer seals on my brake calipers by running the
>>>pads too thin at the track.
>>>
>>>http://www.boost-instruments.com/brakes/DSCN1789.jpg
>>>
>>>Can anyone offer their experience in replacing these seals?   Is it
>>>feasible?  Who has the best price?  It looks like it will run me $175
>>>for all eight seals from Pelican Parts but I am not entirely sure
>>>these are the right seals.  I think I probably just need the outer
>>>seals.
>>>
>>>Needless to say, the moral of the story is don't run your pads down to
>>>1/4" and run the brakes hard.  I wonder if using the 30mm rotor (cf
>>>the 32 mm rotor designed for these calipers) led to the failure in
>>>conjunction with the thin pads.
>>>
>>>-Kevin
>>>'94 S4 w/ 928GTS calipers, RS2 brackets, DBA 4000 series 323mm rotors
>>>_______________________________________________
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>>>
>>>
>>>
>>>      
>>>
>
>  
>