[s-cars] Custom rotor hat for use with RS2 Brackets (993tt caliper/GT-3 322x32 rotor) & stock wheels

[Steve Powers]

Peter -

> Saves weight, but at what cost?
> Unless you track your vehicle, regularly inspect/replace the
> rotor/hat , and/or live in a pristine environment (minimal salt,
> rust, potholes , are the benefits of switching from the durable cast
> iron boat anchor of a rotor to a multipiece rotor with an aluminum
> hat worth the potential issues?
>
> some food for thought here:
> http://www.tdif.com/phpBB2/viewtopic.php?t=700
>
> Just want folks to understand that there are Pros AND cons for going
> with multi piece rotors and aluminum hats over cast iron

interesting food for the internet, but not completely scientific. he
did not stress both systems to failure.

I have the BIRA hats with the 993TT rotors on our 95.5 Avant and have
had them installed now for 3 years. I have done multiple track days on
them - no problem. Seattle is not known for it's perfect pavement -
again no problems.

The _only_ problem I ever experienced with this setup is vibration.
That was solved by having them retrued after breakin. Because the
rotors and hats were machined at different times to different
reference points, it's darned near impossible to make them perfect.
Having them refaced together makes them perfect.

My $.02 - based on personal experience

Steve Powers