whoddoo

Probably true except that the DS2500 were advertised as not squealing which is why I purchased instead of the D1.11. So I will be changing out for each event instead of having a sweet combo pad. Will go with the D1.11 when these wear out. I already swap wheels and tires so adding pads will not increase the time involved significantly with the stud kits.

BradB

Oh, I didn’t realize they were advertised that way. I understand your disappointment. But the stud kit is life changing...so at least you can enjoy that!

erko1905

Just for completeness sake, I'll come back to this thread, since I'd said I was gonna report back.

So I ran the DS1.11 + Girodisc setup at VIR last weekend. It's a new track and new brakes at the same time for me, so it took me a while to acclimate.

First few sessions, being used to the Pagid pedal feel, I was overslowing for literally every corner. Braking power is really substantial with this setup, so you can't be too liberal w the pedal. Thankfully I got over that and I managed to push my braking zones pretty deep towards the end of the weekend.

Some notes:
1) As I previously mentioned, tons of initial bite. It works really well in corners where ideally you just do a little tap to set the car and immediately turn, that tap is now just a brush of the pedal, which I really liked.
2) Fairly linear brake modulation. It was reasonably easy to brake hard and late and gently release into the corner.
3) Threshold braking force is fierce. Gives a lot of confidence in terms of how late you can start braking after long straights.
4) Noise was way down after a hot session or two, as pads got bedded fully. Presumably this'll get worse again w street driving. Floating rotors are silent.
5) Performance did not degrade much w heat, I had a slightly softer pedal as day went on which I suspect was the fluid. No pedal vibration after heavy use (this was a big issue for me as the oem rotors w holes got covered in pad material)

Overall, great setup, and a substantial improvement vs oem rotor + pagid yellows, at least it felt so to me. I managed to run some consistent 2:13s at VIR with this setup, which is kinda slow but was substantially better than my times earlier this summer w the previous setup at the Glen (~2:18) which is very comparable in terms of lap times.

mdrums

My DS2500 rear pad squealed a little until this weekend I got to actually properly bed them in and in the last 200street miles there is no sequel anymore.

whoddoo

Good information. I just spent Saturday at Chuckwalla Valley Racetrack and much improvement with the DS2500 pads over OEM. Bedded them in prior to the event and worked them hard on the track. No squeal on the drive home so I have my fingers crossed that these may work as a combo pad. It is easy to change out pads with the new caliper studs but even easier not having to change them. Interested to see how they treat my OEM rotors.

whoddoo

Following up to my earlier posts on the Ferodo DS2500 brake pads they are currently quiet and appear to produce less dust since I cleaned the car after track day at Chuckwalla. Could be on to something here,...better stopping power than OEM, less dust and (fingers crossed) no squeal. Happy with the upgrade.

Clark-ApexPerformance

Thanks for your update on the performance of the DS2500. From what I can determine they are the best "cross over" pad available.

smbryan

Would you install these as an upgrade from OEM knowing they will never see a track?

whoddoo

Early times with these pads but so far I would install even if I did not track the car. Probably depends on your driving style as the Porsche OEM pads are good as well. So far the Ferodo's seem to dust less than OEM and that is a good thing.

mdrums

No reason to...

I use the Ferodo DS2500 right now and they are no better on the street than stock pads but they are better on the track than stock pads.

mdrums

Update on the Ferodo ds2500 pads...I have 2.5 days on them at Sebring which is a tough on brakes track. GTS. I use to run Pagid Rs29 Yellows on the 2012. The ds2500 worked great on the street...quiet and stopped as well as stock. On the track they worked well too but they would experience some mushy fade towards the end of a session.

However I need to get more than 2.5 days out of brake pads. So I will be looking to see if there is anything other than Pagid RS29 Yellows Out there

008

mdrums

I was told PFC has nothing to fit 991S/GTS brakes. I will look again...thanks Mike

008

I run the GT3 pads and just chamfer the edge. If you get aftermarket rotors you can get them the same as the GT3 in diameter and run all their pads. Also, you can get folks like porterfield to add different compounds to your backing plates. I’m going to do this with the 01 compound next.

Clark-ApexPerformance

PFC makes the GT3 front pad in 11 compound only. They have no pads at all for for the 991S stock calipers

I’m going to do this with the 01 compound next.
PFC Has not offered 01 compound on Porsche pads for 5 years. 11 compound replaced 01.