[s-cars] Slotted vs. Drilled (was - Link to slotted rear Zimm erman Rotors)

[Robert Pastore]

Bob:

I've heard the same about the colemans warping.......and Coleman will make
hats for you if you provide the spec.



-----Original Message-----
From: Bob Rossato [mailto:bob.rossato at att.net]
Sent: Friday, September 06, 2002 8:25 AM
To: TM; s-car-list at audifans.com
Subject: [s-cars] Slotted vs. Drilled (was - Link to slotted rear
Zimmerman Rotors)


This has been my quandary as I contemplate what to do about front brakes.  I
definitely want to get two-piece rotors to reduce the impact to rotational
mass as much as possible.  I've been trying to decide whether to go with
slotted Coleman rotors, or the Swiss cheese 993tt rotors.

Information/sources for the 993tt is pretty prevalent, so my questions are
more related to the Colemans.

Who sells hats for the Coleman rotors to fit the UrS4/6?

I had heard from somebody, don't recall who and beer may have been a factor,
that the Colemans have a tendency to warp.  Anybody experience this?

Bob

> -----Original Message-----
> From: s-car-list-admin at audifans.com
> [mailto:s-car-list-admin at audifans.com]On Behalf Of TM
> Sent: Thursday, September 05, 2002 6:21 PM
> To: 'Cody Payne'; s-car-list at audifans.com
> Subject: RE: [s-cars] Link to slotted rear Zimmerman Rotors
>
>
> Cody et al.,
> I don't really see any need to use cross-drilled rotors for a street
> application. 993tt rotors crack under stress, I've seen this on several
> cars more than once. IMHO, it is a heat management issue, although Mark
> was correct in that 993tts also crack their rotors, so it's not just
> drilled rotors on Audis that crack.
>
> Personally, I'd go with a slotted setup w/o the drilled holes, as I
> don't
> like having rotors that crack.
>
> Because of the intercooler and turbo plumbing, I don't know how
> difficult
> it would be to install brake cooling ducts, but this is something that
> needs
> to be explored for track use.
>
> Taka
>
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>


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