mrd_spy

Here in the Uk the talk is, keep them cool, treat them like steels but give them 2 cool down laps.

It seems people are over heating them thinking PCCB means you can stay out a lot longer.

I bought GT3 ducts yesterday only £6 the pair :-) .

mrd_spy

I was told this by a guy who has links with Porsche

"A steel Porsche spec is 30 stops with fade resistance, the PCCB spec is 50 stops with fade resistance and shorter stopping distance. ( and of course the weight saving benefits ).

After that you just look after them like steels.

mrd_spy

And don't run pads over 50% worn on track.

orthojoe

I've followed all the recommendations on pccb care, including swapping pads out at 50%. I still have wear. I honestly believe most of the wear came from two track days at Laguna Seca. That track is brutal on brakes. I'll bet if I never took the car to Laguna, I'd still be running PCCB right now

Also, I've never experienced fade or overheat on the spyder with the PCCBs. Even at Laguna. Lap sessions are 20-25 minutes

medtech

Wow, I had no idea the PCCBs were so fragile, those brembos look great BTW!

orthojoe

Thanks. This is where marketing meets reality, unfortunately. My friends were told at the Porsche driving school that they never had to replace the PCCB rotors on the cars in their fleet. They bought the line hook and sinker and optioned their Gt3s and turbos with PCCBs. Fast forward two years later and they get an update in the mail that warns increased wear with PCCB during track use....

the_vetman

Unless I'm mistaken, Porsche brakes are made by Brembo?? Perhaps Alex was referring to Brembo BBKs (vs. the OEM Porsche brakes also made by Brembo).

orthojoe

Vet, not sure who makes the PCCB rotors, but the rotors that I bought and the rotors being referred to by Alex and Eduardo are made by brembo specifically for this application

the_vetman

Oh, I'm sorry, I was referring to the steel brakes. I'm pretty sure that Brembo is the OEM supplier of Porsche steel brakes. IDK who makes PCCB brakes for Porsches either.

As you said, Brembo also makes the "conversion" kit and BBK.

Finally, your brakes look great. 350 mm!! I wish....

orthojoe

Ok, I just finished installing on the other side and did a quick run to shave the zinc plating off the rotors. Not surprisingly, the rotors on the other side weighed the same, so nothing to report there. I haven't bedded the pads in yet, and all I've done is a quick one mile drive at low speeds to shave off that zinc layer as instructed. Thoughts so far:

1) The car doesn't feel like it's become sluggish from the weight. It seems to be just as responsive in terms of throttle application.

2) I am SUPER HAPPY right now with my brake pedal. I FINALLY HAVE A SHORT TRAVEL, FIRM PEDAL. Mushy pedal is GONE! This is what I've been hoping to have for the past 2 years! It must be the brake pads combined with the GT3 master cylinder. I'm elated right now. Hopefully it doesn't change after I bed in the pads, which I'll do tomorrow am.

Lesson learned: OEM pagid P40 pads SUCK compared to PFC08

fhp911

Did you really think that adding a few tens of pound (even unsprung) would make the car feel differently on the street?

ALSO -- pls provide the model number of those PFC pads.

orthojoe

Honestly, I didn't know what to think. People seem to make such a big deal out of unsprung weight, I was afraid the car would feel sluggish. I'm glad that didn't turn out to be the case.

Great idea! Here are the part numbers:

Front Brembo rotors: 102.8006A
Rear Brembo rotors: 202.8007A
Front PFC08 pads: 7819.08.17.44
Rear PFC08 pads: 0776.08.17.44

BTW, Fred, that brake tool of yours is sweet. Messing with those stupid spring clips was such a pain. The tool makes pad swapping so much easier. I also picked up a girodisc pad spreader. Again, makes the job sooo much easier. Pricey tools, but worth it if you do this kind of stuff frequently.

stevecolletti

Having done it with wheels, a few tens of pounds is noticeable, though I usually feel it more on how the suspension works over uneven surfaces/ Less unsprung weight almost 'dances' over the bumps, allowing better contact with the road surface.

Glad the brake pedal is better, Joe. That also tells us the mushy pedal has nothing to do with the calipers.

Not4off

Replaced my PCCB rotors at 57,000 miles as the fronts were toast. Rears still had a lot of life left (at least away from a track setting). With the PCCB OEM calipers I now run 997 turbo pads in the front and Carrera S pads in the rear with GiroDisc slotted steel rotors. It's a good fit.

orthojoe

I'll have to pay closer attention to the bumps, Steve. Admittedly, I'm not the best when it comes to noticing subtle differences.

Love my new brake pedal.