Supposedly its main pupose is for outgassing of the pads which is no longer
true (pads haven't had that problem in almost 30 years) BUT they are also
used to dissapate water in wet conditions.
Personally I think its another kind of snake oil and just looks better if
you like that racy look. However I could be wrong.
Grassroots had a long article about brakes and in particular a long
discussion about rotors. They said what I feel but maybe what I feel came
from their article as well as others.
Those drilled rotors are particularly bad unless manufactured by a very
reputable company and even then you have to keep your fingers crossed. I
have heard of several stories about the rotors cracking under pressure as
the holes caused stress risers. Yes, Porsche uses them but those are Porsche
parts made under strict guidelines.
Mike
----- Original Message -----
From: "Ed Wilsey" <Kensington_FC@hotmail.com>
To: "Stephen McCartney" <sgam@hotmail.com>; <roadster@texoma.net>; "List"
<datsun-roadsters@autox.team.net>
Sent: Wednesday, June 26, 2002 10:26 AM
Subject: Re: Question about front disc brakes
> What is the purpose of slotted rotors? Is it for heat dissipation?
>
> ??//
>
> ----- Original Message -----
> From: Stephen McCartney
> Sent: Wednesday, June 26, 2002 3:58 AM
> Subject: Re: Question about front disc brakes
>
>
> Even the guys who race here are using a more or less stock setup, except
> with slotted rotors (still available here in Australia through DBA). Get
more
> from the Web. FREE MSN Explorer download : http://explorer.msn.com
>
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