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

[Kevin Day]

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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> >
>