Dankas

I have bought a set of 993 TT/C4/RS calipers front and rear for my 964 C2. Front seems not really to be a problem because I think I can use the rotors of a 964 3.6 T, together with a pair of the right adapters. But for the rear is a different one, there is no standard rotor of 322x28 mm which fits. Anybody knows a solution ?

Bill Verburg

Geoffrey gave up the parking brake and used a hat/annulus from, I believe, AP. I think that he documented it in one of his race car build threads.

alternately to retain the parking brakes and use the 322x32 rear you can, pin a correct center section into the 993 rotor, that's how it was done on my 911 w/ 993RS rears
it looks like this

ilko

I haven't seen a rear 993TT caliper fitted to a 964. I think it would be almost impossible to fabricate the correct adapters because the suspension arm is in the way. Usually people go with a regular 993 rear caliper (plug & play) and a 964 rotor or the 964 RS rotor if you want it to be cross-drilled.

Dankas

I think I prefer your solution, but is this a difficult 'operation' ? and if so can you give me any tips how to do it or where somebody with experience can do it for me ?

Dankas

Bill, if I understand it correctly you have already done this ?

Bill Verburg

Brembo did it, but I don't know if they are still available or not, you don't list your location but in NA Ractechnology would be the contact, in Europe probably Brembo itself

Steve Weiner-Rennsport Systems

Race Technology isn't doing those any longer, according to my rep. I've requested those several times in the past year to no avail.

Bill Verburg

Here's Geoffrey's, no parking brake



As I recall he was also pretty unhappy w/ the bias, if you have 993tt they are very front biased

Dankas

Thanks 4 the pictures ! It seems to be a very difficult thing to put the 322x28 on the back. Ithink I have to consider to go to RS disks and 993 C2 calipers at the back and a C4 m/c. Thanks for all the information ! By the way, my region is Europe, The Netherlands.

rbauhart

I did the exact same rear setup as Geoffrey, also removing the parking brake. Same style rotors up front but slightly larger at 332mm, and also removed the proportioning valve. Running Pagid Yellows up front and Pagid Blacks in the rear. Works great. Much more settled under braking, better modulation, and plenty of braking power.

Jemm Gamroth of Rothsport did this work for me. I am very happy with it on my RSA.

Roland

BLKRS

Bill, could you please reiterate this issue and solution?
I have a set of 993tt big reds and wanted to put the full set on my 964 C4.
The rear has been an issue as far as information gethering.
Is it possible? How can I achieve it with the park brake?
Also what caliper adapter do I use for the rear then?
Thanks
John