mdrums

I have GiroDisc front are rear....I can run a GT3 pad in front. A GT3 pad in rear will not even fit into the Carrera S/GTS caliper...backing plate in much bigger and shipped differently so I have no idea how you get a GT3 rear pad into a Carrera S/GTS caliper....you have measurements and pictures???

008

008

mdrums

Anyone try the Race Technologies RE10?This is a Brembo company....I had a few 991 GT3 / GT3RS guys tell me how well the RE10's work for them..even on the street with much less noise on the street than the PFC or Ferodo pads.

Since I am using GiroDis rotors I can use the RE10 in the front but I am not sure if they make a pad to fit in out rear calipers. I called Race Technologies today and asked a guy and he was suppose to get back to me today but I never heard anything.

On the other hand anyone tried out the Ferodo DS1.11 front and rear or the PFC 11 front and rear? If so what lasted the best...what pad ate the rotor the least and which pad was the quietist?

I could only dream of performing a brake pad shoot out and have a new set of each to evaluate in a test of track days at Sebring. The winning pad company could see a spike in sales!

008

mdrums

BradB

stout

Ack. Sorry to hear it, Mike.

It seems to me that the 991.2 Carrera/S/GTS/S market is ripe for go-to brake upgrades. I agree with your earlier suggestion that the GTS, at least, should have brakes on par with the 991.1 GT3 and 981 GT4. Wonder if Racing Brake, Sharkwerks, or some other vendor can be convinced to address it with something that is more cost-effective—whether larger rotors with caliper relocation and bigger ducts ($,$$$) or complete replacement of rotors, calipers, etc (potentially $$,$$$).

RRDnA

DS1.11 - 300-350 C mu = 0.49, 700 C mu = 0.475 - mu = coefficient of friction, the higher the number the better the bite and the higher the rate of rotor wear.
RSL29 - 500 C mu = 0.45, 700 C mu = 0.41
DS2500 - 300-350 C mu = 0.425, 700 C mu = 0.36

The DS1.11 are the most aggressive pad of the three above - they will wear rotors faster and have better bite through to 700 degrees C (0.015 drop off in mu)
The RSL29 will have less bite than the DS1.11 and will chew through rotors at a lower rate. They will still perform out to 700 degrees (drop off in mu = 0.04)
The DS2500 are the most benign pads here and the most gentle on the rotors (unless they disintegrate and coat the rotors = warp) there is a strong drop off in performance above 500 degrees C (drop off in mu = 0.065 to 0.36).

Did a full sprint season with 350 and 330mm - zero brake fade, but changed rotors when ribbed and cracked, moving over to AP R4 fluid and sticking with RSL29 (track) and OEM (road).

I always bed in pads before an event and bleed brake fluid after an event (or bleed, flush and change).

CombatChuk

as I understand the 991.2 S/GTS Brake Calipers are the same in the GT3 (they were different in the 991.1). What about adding the 380mm rotors from a GT3 on a GTS?

mdrums

RRDnA

Mdrums, I can understand why you are miffed, but at the end of the day brake pads, rotors, tires etc are disposable items if you track a car regularly

I think we all drive a similar road in this regard e.g. take delivery - fully OEM, burn off the OEM pads, rotors, tires etc then settle on what best meets our needs from some of the very good after market/ non-oem solutions. We all dream of the unicorn GT e.g. you buy it off the shelf - drive it to work every day, compete in a track season, take it on holiday and have it serviced at the local dealer once a year for a couple hundred bucks as it only needs an oil change Unfortunately I have yet to find this car.

The reality is, no matter whether you are driving a GT3 or a GTS - if you track regularly (particularly under race conditions) you will burn through pads, rotors and tires as if they are going out of fashion. The way I look at it is quite simple - there are a series of trade - offs and compromises to be reached. There is an element of the old adage "pay to play" unfortunately this is one of those adages that is correct .