Larry Cable

are they the same also as the .2 PCCB calipers ... meaning we PCCB owners could exchange the steels for the PCCBs?

TRAKCAR

Thanks!

I did not have PCCB before, nor now. I am prurely comparing steel to steel MK I VS MK II.

Larry Cable

Thanks, I was actually asking this of 10GT3 ... since he alluded to the PCCBs

TrackDays247.com

997 GT3 rear caliper is entirely different than a 996 GT3 caliper AND/OR the front of a 2010 997 GT3 pad is slightly different - otherwise F&R pads same between the two models. Make sense?

TRAKCAR

OK, I think so.
The GT3's have the same brakes as the RS. This is the case with MKi and MKII.

Steel GT3(RS) MKI VS Steel GT3(RS) MKII
-Same rear pads..only..
-Different front pads
-Different rear rotors
-Different front rotors

right?

10 GT3

Unless there is something different with the caliper mounting, then this should be true. The front caliper on .2 steel is exactly the same caliper as the 997.1 GT3 PCCB (except painted red instead of yellow). It is a bigger caliper than the 997.1 GT3 steel brakes. Hence .1 steel pads will not interchange with .2 steel pads. The steel rotors on the .2 steel are the same diameter as the .1 PCCBs. As long as the offset is the same, you should be able to the new steel rotors as replacements on the .1 PCCB cars. The rear calipers are the same on the .2 steel as they are on the .1 steel. Only the rotors appear to be different. As far as center lock versus wheel bolts go, the new rotors have 5 holes that appear to be in the normal position on 5-lug cars. With the center locks there are 5 wheel positioning studs screwed into the hub in approximately the same position as wheel bolt holes on other 911s. Hence, it is very likely that the .2 steel rotors could be a replacement for .1 PCCBs.

mkozink

I am in the process of verifying this application. The service tech at my Porsche dealer is having a set of 997.2 steel rotors (front and rear) shipped in for test fitment. Depending on availability of the parts we should have a better idea in the next few days.

mkozink

According to the Porsche NA in Atlanta the 997.2 steel rotors should be a direct bolt on for the 997.1 PCCB rotors. No need to mess with any modifications or trim brake pads to fit with an after market steel rotor. I ordered a set of 380 mm cross drilled front and 350 mm cross drilled rear rotors through my service tech (I will get parts numbers) for, get this, $1900.00. They should be in by early next week. Updates to follow.


I was originally told the 997.2 steel rotors are a 2 piece configuration. Now that is not completely clear. They are cross drilled but until I physically see them I won't know if they are 2-piece. Sorry for the misinformation.

Here is the description of the standard (steel) brakes from the Porsche MY2010 GT3/RS Order Guide:

"Braking System
Redesigned 15.0” (front) and 13.8” (rear) vented and cross-drilled rotors constructed of cast iron discs (friction area) and light weight
aluminum brake chambers (hub). 6 piston monobloc red calipers – front, 4 piston monobloc red calipers – rear. ABS 8.0 – Anti Lock
Braking System, brake pad wear indicators, hand operated parking brake."

The description certainly appears to be of a 2-piece construction. However as I said previously until I physically see them I cannot be certain.

mikymu

Thanks for trying it out for everyone. Love to know if 2010 GT3/RS steel rotors will fit 7.1 GT3/RS with PCCB. Do you know if 2010 Cup car use the same street steel rotors?

rmag

So if 997.2 steels fit a 997.1PCCB, then a steel 997.1 PCCB replacement rotor should fit a 997.2 steel.

So the PFC steel 997.1 PCCB replacements should fit a 997.2 steel

TRAKCAR

What do the PFC's cost and weigh VS OEM?
That still leaves us without a solution for the rear besides OEM.. The rears should last longer, but now they still have a lot of holes = cracjk quicker than the fronts.

mkozink

I have benefited from your posts re: PCCB to steel rotor conversion so it's the least I can do to further the cause.

Don't know about the Cup car application. The service tech should be able to answer that question. I have a call into him for other items so I will add that to the list. Will keep you posted

mikymu

I can't find anyone carrying PFC rotors that fits 7.1 PCCB and 2010 GT3/RS application other than Craig at rennstore. I don't know the specifics and you need to contact Craig for detail. Funny thing is that PFC's own website don't list ANY rotor application for 997 GT3



I do have the specific information below on stoptech rotors for 7.1 PCCB via Dave Zeckhausen. You need to check with stoptech to make sure it can be used on your 2010 RS. These stoptech rotors need siginficant pad modification to fit the rotors. PFC makes modified pads for the stop tech application ... are you sitting down? Good, because they cost $600 for the front and $500 for the rear!

Front Rotor $1375 a set

22.1 pounds total per rotor assembly
380x35mm AeroRotor: 19.4 lb
Front hat: 2.15 lb
Mounting hardware: 0.2 lb

Rear rotor $1025 a set

15.9 pounds total per rotor assembly
345x28mm AeroRotor: 12.5 lb
Rear hat: 3.15 lb
Mounting hardware: 0.2 lb

"A Trophy BBK (Big Brake Kit $4045 a set for the front and $3245 a set for the rear) is simply a variant of the normal StopTech BBK, with the following differences:
1. Calipers and hats have a natural anodized finish
2. Calipers weigh about 20% less due to material being machined away and due to a different mechanism for holding the two halves together
3. In addition, Trophy Race kits come with no dust boots, no pads, and have no anti-rattle hardware in order to allow rotors full float

The Trophy BBK rotors weigh exactly the same as the non-Trophy rotors.
The AeroRotors are the same. The only difference is in the finish on
the aluminum hats. Instead of black anodizing, it's the same natural
anodizing (plus some cool laser etching) as the calipers.

The front kit uses 380x32mm AeroRotors and, combined with hats, is about
21 pounds each.
The rear kit uses 355x32mm AeroRotors and combined with hats is usually
18 pounds, but you might need to add one more pound for the heavier hat
that doubles as the drum for the parking brake."

Thanks mkozink for looking into the matter. Your information will help many of us looking for an economic and simple alternatives for 7.1 and 7.2 PCCB. Please weigh the rotors before install so we can compare weight gain/loss vs other alternatives

997gt3north

I asked my Dealer to check into this - I'm a good customer so they took it seriously and made the call to Atlanta.

The response back from Atlanta was amusing - basically, they didn't answer the question but mentioned crap about they don't know and if you try it you won't have a warranty.

Clearly, someone else has already asked the question (see above post) and they now have a legal answer ready (my guess)

My prediction is that they fit - I guess we will see very shortly.

mkozink

The brake parts were ordered yesterday (including a DAS roll bar ).
I asked the parts guy to provide me the parts numbers but he said they would be on the invoice. I don't know if this means anything but he did describe the brakes as "Porsche performance" parts rather than 2010 GT3 steel brake rotors, which they are. He told me they would be delivered by Tuesday but would call if there were any delays. I will make certain weights and pictures are taken before they are installed. I would normally do the installation myself but the car is CPO'd and my dealer made it clear that I can do almost anything I want to the car (short of internal mods to the engine) without effecting the warranty as long as they do the work. An acceptable trade off IMO.