cross drilled rotors Scott Williams is WRONG!

[Scirocco-Al" <scirocco-Al@insight.rr.com (Scirocco-Al)]

I have a steel rear rotor from one of Bobby Rahal's old Indy Cars in my
garage and it's gas slotted.

I really have no opinion one way or onather wheter it works but he must
think so.

Alan
----- Original Message -----
From: "Brett Van Sprewenburg" <brett@netacc.net>
To: "ATS - Patrick Bureau" <pbureau@attbi.com>
Cc: <scirocco-l@scirocco.org>
Sent: Saturday, March 23, 2002 11:00 AM
Subject: RE: cross drilled rotors Scott Williams is WRONG!


> >Bret I would agree for road vehuicules and daily drivers, coudl you
explain
> >why then F1 Racing and Nascar Use Cross drilled rotors if indeed it
provide
> >"now-adays" no evidance of added performance.
> >
> >inquiring mind would like to know.
> >
> >ATS - Patrick
>
> I'm sorry if I'm a bit confused, but are you asking this because you might
> have read my posting incorrectly...where I quoted the GRM article as
stating
> that F1 and NASCAR teams _do_not_ use cross drilled rotors, or you may
have
> some knowledge which the article writers and magazine editors did not and
that
> those teams _do_ in face have occasion to use cross drilled rotors?
>
> As I did not note before, because it just doesn't apply to our cars, there
is
> one exception to the cross drilled rule...as stated by the GRM
> article, it's where
> the rotors are so oversized, the swiss  cheese is applied to reduce the
mass of
> those parts (like for any performance motorcycle or lighter formula car).
> Remember that nothing comes for free.  If those teams switched to
non-drilled
> rotors, they would see longer brake pad life, and lower operating
temperatures.
>
> Oh, I forgot to address the slotted units...
>
> Slotting rotors OTOH, might be a consideration.  Cutting thin slots
> across the face
> of the rotor can actually help clean the face of the brake pads over
> time, helping
> to reduce the glazing often found during high-speed use which can lower
the
> coefficient of friction.
>
> ==Brett
>
>  \/  '84 Scirocco (ITB racer 2B) | "Hot VW's, take two home. They're
small"
> \/\/ '88 Scirocco 16v (Show), '92 Passat 16v (Winter+) | -
brett@netacc.net
>
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