Exploding Rotors: why you do not drill

illuminaudi at attbi.com illuminaudi at attbi.com
Fri Jun 20 23:26:41 EDT 2003


The new A8 is supposed to come with drilled rotors from the factory.  Hopefully
they aren't Zimmerman (or team door handle) rotors, it would be a shame to lose
Howard Stern... :)

-Matt
'86 5kcstq
> At 7:41 AM -0400 6/20/03, Bob Rossato wrote:
> >Not to start a thread on pros and cons of drilled rotors but, it is
> >obvious that these rotors were a home made job.  There is a rudimentary
> >pattern to the holes but the spacing is all over the place and the holes
> >look bigger than anything else I've seen.  I'm not defending drilled
> >rotors but the reason these exploded has a lot more to do with the fact
> >that some clueless individual just went to town on them with a drill
> >press without any regard to the size of the holes, amount of material
> >removed, or balance of the rotor.  If someone is actually selling these
> >things in this condition then that is downright criminal.
>
> They were Zimmerman rotors, made in Germany; not a homemade job.
> Their rotors seem to be widely sold by VW/Audi/Porsche 'performance
> shops' on the net.
>
> In person they appeared to be drilled in a perfectly even pattern,
> consistent hole size, so on etc.  Also, if they were not balanced,
> one thinks the TT owner would have noticed immediately at 120+ mph on
> the front straight.
>
> B
> --
> ----
> "They that give up essential liberty to obtain temporary
> safety deserve neither liberty nor safety." - Ben Franklin
> http://www.users.cloud9.net/~brett/



More information about the quattro mailing list