[s-cars] Brake rotor direction

[Bob Frizzell]

Eric,
Thanks for the input, that's consistent with what Fred indicated, and how I
had 2 of them oriented before I decided to ask the all-knowing ones.
Bob

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Eric Phillips
Sent: June 8, 2007 9:34 AM
To: s-car-list at audifans.com
Subject: Re: [s-cars] Brake rotor direction

> Date: Fri, 08 Jun 2007 00:18:40 -0600
> From: Bob Frizzell <bobfrizzell at shaw.ca>
> Subject: [s-cars] Brake rotor direction
>
> S-men,
> I am installing some Zimmerman drilled rotors.  Although this seemed like
a
> stupid question when I was putting them on, a little research on AW
> indicated its not.  The question is "Which direction is preferred, if the
> vents look to be straight?"
> Bob, its all about looks

Shall I open the crack rotor can of worms?  No.  OK.

Look at how the hole pattern appears.  From the hub, the holes will
describe a line that is not exactly radial, but as sort of a curved
line that becomes more tangential as it approaches the edge.

OK - let's say that from where the line of holes starts on the hub, to
where it ends up on the edge of the rotor, that would describe the
direction the line of holes "points".

The correct installation, according to Matt at StopTech, is that the
lines of holes "point" in the direction of rotor rotation.

HTH,

Eric
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