[Shotimes] 96 SHO Brakes

[Leigh Smith]

The lighter pedal / increased braking torque was the major benefit of the
upgraded Z pad compound. The smaller 601 Z pads will outperform the larger
598 Regular PF pads by a decent margin. We are talking a 10-20% torque
increase here. The whole "correct" 598 pad issue is blown way out of
proportion. The extra 1/4 inch amounts to less than a 10% increase in pad
surface area, and it is on the inside edge of the pad, so the torque effect
is only 25% what it would be on the outer edge. Put simply, the 598s won't
make your car stop any faster, or the pedal any lighter, or the pads run any
cooler. What they will do is wear a little longer. Maybe 2-5%.
Bottom line: Find a pad compound you like first, then see if you can get it
in the larger 598 size, but don't sweat it. Both sizes fit properly, so you
really have 2 choices. That just expands your choices of available pad
compounds.Take advantage of it.
Sorry for the sermon, but the physics just don't jive with the popular myth
that 601 pads are "no good".
Personally I wanted my cake and icing too, so I am running Porterfield R4S
in the 598 size. They give up only a little torque to PF-Z or Carbotech F,
but barely dust. They are way better than the standard PF in friction and
dusting, which were originally compounded for taxi service, not performance.
That's why they wear like iron.
Lee

----- Original Message ----- 
From: "Carl Prochilo" <gr8sho@prochilo.myserver.org>
To: <shotimes@autox.team.net>
Sent: Wednesday, July 07, 2004 5:30 PM
Subject: Re: [Shotimes] 96 SHO Brakes


> Leigh,  This will be useful in the eventuality that the more aggressive
> Z-rated pad becomes available in the 598 size.  Currently this is not an
> option for us-uns that have had the upgrade done.  Interstingly PF markets
> this pad to Corvette and BMW owners that need higher performance, though
> they don't say anything about dusting.  I assume the wear mechanism will
> be higher too, but with lifetime warranty, that's not so bad.
>
> But their standard CM pads will be better for the SHO than the stock Ford
> pads which I've always been unhappy with given enough time with them.  I'm
> sure that when I take them off, they will be practically brandy new.
> -- 
> Cheers,
> Carl Prochilo
> 92 Ultra Red Crimson
>
> On Wed, July 7, 2004 5:05 pm, Leigh Smith said:
> > Carl;
> >
> > <snip>
> >> Separate question.  AZ carries a PFC-Z pad by mail order only.  Is this
> >> pad good for street use or really only suited for track use?
> >> --
> >
> > Seems like you may have already ordered the standard PF pads, and that's
> > OK.
> > I have run both, and I can tell you that the Z pads do stop better with
> > about 10-20% more friction (or 20% less pedal effort). But the penalty
is
> > dust. Those pads are the dustiest things I have ever seen in my life.
> > Clean
> > wheels would be completely black after 100 miles of highway commuting.
> > They are definately streetable though. One nice thing about the standard
> > PF
> > pad is they don't dust all that much. Maybe save the Z pads for
autocross
> > or
> > the track.
> >
> > Lee
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