[DeTomaso] Brake Pad info

[Mark McWhinney]

Do you have the 6 pistons on all four corners?  What are you running as an
MC?

I am running the B compound which is also a race compound but not as brutal
on the rotors.  I have way more brake than tire, so I can lock up if not
careful.  They are also noisy and dusty.  On the other hand, even stone cold
they are better than warm Porterfields, and I do not get fading on the
track.

Selection guide:
http://brakepads.wilwood.com/01-selection/index.html


Fiction vs. temperature graphs
http://brakepads.wilwood.com/02-graphs/index.html


I run a pair of 2 PSI blue residual pressure valves.  I also have the
proportioning valve in the front trunk.  If I had to do it over again, I
would have put the valve where I could reach it inside the car.

As I recall, the 6 pistons actually have less total surface area than the 4
pistons, though they are better at heat dissipation.  Your MC may now be
mismatched for your calipers.

For the front lockups, you could put in the proportioning valve or the dual
MC with a balance bar.  The later would be the better option if you have to
replace the MC anyway.




-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Herbert Butler
Sent: Wednesday, March 14, 2007 3:34 PM
To: detomaso at realbig.com
Subject: [DeTomaso] Brake Pad info

I changed out the MSD 6AL box and the Pantera is alive. People my recall I
had issues with spongy brakes chased it to non-rigid Superlight II calipers
and installed new Wilwood 6 piston calipers. I also installed Wilwood
Polymatrix A compound pads. I drove the car today and the front brakes
lockup to easily, need more rear brake. In addition the pads are very noisy,
I know racing pads are noisy. My question is if anyone else is running these
pads and if they are running the 2 PSI residual pressure valves (I do not
think I need them now that the sponginess is gone). I used to run Wilwoods
proportioning valve on the front brakes (Per Bob Woodhouse) but it is
currently not installed. Any ideas appreciated. Jack

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