991.2GTS

I'm planning to change to stock pad to the RS29. I have noticed on the Pagid application page the front pad I need is the same as the Carrera and not the Carrera S. Mine is not the PCCB. Is that normal? Anyone has experience on this?
http://www.pagidracing.com/en/produc...hape-8074.html
Thanks

arter

No, for iron brakes you use the same pagid pads as the 991.2 S ( and the 991.1 GT3) the 4924 on the front and 4909 on the back ( this is different than the GT3).

Works great on my 991.2 GTS.

991.2GTS

are you using stock rotors?

tstafford

mdrums

Stock 350mm 991.2 S/GTS front rotors take different pad than a GT3 pad...if you change to Girodisc 350mm rotor you can use GT3 pad on front.

I had zero luck with Ferodo DS2500 and ds1.11 pads FYI...probably going to try RS29 next. The GTS need brake cooling mods badly...brakes get over heated. Actually GTS needs GT3 sized brakes too for track use. If you are fast...with the upper guys in your advanced solo class and the track you drive is demanding...plan on going through brakes every 2-4 track days with a GTS. the car will keep up with 991 GT3's but it is heavier and has small brakes...not a good formula for the power of a GTS.

arter

Not so using the pagid pads on the 991.2 S/GTS with the stock iron rotors. They work and fit fine ( assuming we are talking about the 4924 pagid pad used with the 981 GT4 and 991.1 iron brake GT3).

mdrums

Interesting...not sure of Pagid part numbers right now...only going on what I was told if I used stock rotors that the stock rotor hat is larger and takes a special pad not a GT3 pad. I never tried and went to GiroDisc rotors for my 991.2 GTS.

991.2GTS

Yea, I have read the other thread and see you guys saying need the A1-132 rotor to run the GT3 pad, that's why i'm confused.

arter

have close to 18 mm of space between the inside of the pagid pad and the rotor hat, a big gap.
Have three track days on them with little wear.

mdrums

I would not really want that 18mm gap...though. When swapping back to street pads if you do as RS29 squeal and do not stop as well cold on the street there could be issues with stock pads seating to rotors as they wear and the 18mm gap doesn't.

this is exactly why I went with the Girodisc 350mm rotors and that they do not have the drilled holes that crack as the Giro's are slotted.

Something for you all to think about.

From the 2017 Pagid Catalog:
Pagid Fronts 3.0L 991 is 4922 for stock 350mm rotors with new 2017+ special front rotors with new style rotor hats
Pagid Fronts GT3/GT4 pads 4924
Pagid Rears are 4909 for stock 330mm rears or Girbodisc 350mm rears...as the Girodisc is same swept area but just shimmed outward to fit the 350mm rotor.
Pagid Rears GT3 are 4925...different caliper than S/GTS

I can tell you that Ferodo ds2500 (991GT3, Turbo GT4) FCP4664H and 4664W for front and FCP4713H 4713W for rear fit perfectly on the complete rotors. The ds2500 do not really squeal on the street and work ok for light track work on tracks that are easy on brakes. The ds1.11 squeal like crazy on the street but still stop good when cold, plus the have more bite but still good modulation when hot at the track than Pagid...but they ate my Girodisc pretty bad and transferred heat to caliper. One thing I notice with Ferodo pads is the pad material is not as thick as Pagid and they don't last as long.

http://www.pagidracing.com/files/Pub...talog_2017.pdf

I am currently talking with John at AutoQuest about better brake cooling for my GTS. As of right now I do not even want to take it on the track again. Hopefully in the coming weeks we can figure out much better cooling for the 2017 S/GTS cars. This new 3.0 Turbo is very fast...no problem power wise keeping up with GT3's...but GT3's are lighter, bigger brakes, much better brake cooling so they are faster and last longer at the track. I am going to talk to my other local Porsche race shop and see what they think about cooling too.

mdrums

Yes to properly run a GT3 pad you need Girodisc rotors...fyi Clark at Apex Performance.net has great deals and parts in stock too!

Also if you run Pagid yellow 29 pads they will squeal like a pig on the street. Problem is to swap out to stock pads you have to remove the caliper to swap pads. the aluminum upright that the calipers bolt to will wear out quickly doing this...so go to Tarett and buy the caliper stud kit...its around $250....makes it easier with out wearing the aluminum uprights out each time you swap pads.

arter

Gap of 18 mm is also the same for the caliper and the rotor hat. Stock rotor is the same size as gyrodisc rotor and calipler head is is the same position so pad fits the rotor track perfectly.
This is the pagid pad size recommended by Suncoast porsche for 991.2 S/GTS.
picture of fit below showing pagid 4924 pad ( no longer very yellow)..

991.2GTS

is there a chance centerlock and 5 lugs make a difference?

arter

Quite possibly yes. S and GTS iron brakes for 5 lugs are the same rotor.

mdrums

I have 5 lugs on my GTS ( thanks god!)....Arter...very interesting. Thanks for the picture and post. I am going on what Clark at Apexperformanc.net and the Pagid Catalog and telling me for pad part numbers and why GT3 pads won't work in 2017+ S/GTS brakes. It looks like you've proven Pagid and Ferodo wrong....

Arter...are you using GT3 or S/GTS rear pads? Again bother Ferodo and Pagid give 2 different part numbers and pad measurements.

Again everyone this info is for 2017+ 991.2 S/GTS cars....