Interest in ZCP-Sized Carbon Ceramic Rotors?

[SQ13]

So there’s a GB going on for PCCB rotors on Rennlist, and the pricing is relatively cheap compared to OE. There are some folks who have track tested them already, and they seem to be good to go. I figured that those of us who rock the 996 calipers might benefit from them—cooler temps, lower chances of ruining piston seals, longer lasting, no brake dust, flex on the Porsche bros who have steel rotors at C&C. The vendor is open to making them in ZCP rotor dimensions, and they should cost around $5k. Any interest?

https://rennlist.com/forums/vendor-announcements/1502373-introducing-bspk-carbon-ceramic-brakes-o-performance-without-compromise.html

[Bry5on]

Woah, I've been looking for something like this. $5k for a set of four?! That seems too low to be true. A couple questions:
- Do they require different street pads for good stopping manners?
- Are porsche folks already running similar ~350mm diameter rotors with good success?

I'm a sucker for unsprung weight reduction. Thanks for initiating this.

[Sharocks]

I'd be interested in a set of 355x32 rings and stock sized rear rotors.

Getting Centrics gonna be expensive might as well pay 20x as much logic.

[discoelk]

Realistically, these are probably too much dough for me.

I have the same questions as Bryson though. Any idea how long these last on a street/track/jackstand car? Similar to cast iron?

[bigjae46]

Interesting. A replacement set of rings for my Stoptech BBK is $2400 for Brembo rings, $1400 for Girodisc. $5k for 4 carbon rotors is appealing.

The problem is they are delicate. Apparently if someone accidentally bangs the wheel on the rotor when removing or installing a wheel...rotor is trash. Limited pad choices may be an issue.

But I think this could be promising. 45lbs of unspring mass reduction for 350mm rotors at all 4 corners? That is massive! I'd be willing to go back to OEM sliders for that!

[Bry5on]

Realistically I think we’re looking at max 30lb weight reduction vs CSL rotors. A set of CSLs weighs 68lb for four.

My late model Porsche CCBs were great, but I heard the early ones had issues with street manners. I wonder if that was rotor development or pad development that caused it.

[bigjae46]

Realistically I think we’re looking at max 30lb weight reduction vs CSL rotors. A set of CSLs weighs 68lb for four.

My late model Porsche CCBs were great, but I heard the early ones had issues with street manners. I wonder if that was rotor development or pad development that caused it.

That is still a massive amount of unspring weight.

[SQ13]

Woah, I've been looking for something like this. $5k for a set of four?! That seems too low to be true. A couple questions:
- Do they require different street pads for good stopping manners?
- Are porsche folks already running similar ~350mm diameter rotors with good success?

I'm a sucker for unsprung weight reduction. Thanks for initiating this.

Yes, you need pads made specifically for ceramic brakes. Pagid makes the RSC line, and Manthey Racing sell some too (which are rumored to be Pagid pads).

These rotors will come with pads which is nice.

350 mm PCCBs work great in the Porsche world. My 981 Cayman GTS had 350 mm PCCBs in all four corners and I loved it. My GT3 has 380F/350R PCCBs. I can’t really comment on track use because I haven’t tracked the GT3 yet, and I never tracked the Cayman.

[SQ13]

Realistically, these are probably too much dough for me.

I have the same questions as Bryson though. Any idea how long these last on a street/track/jackstand car? Similar to cast iron?

Way longer. Street use only, they’re known to last 100k miles apparently. And with current ceramic rotor technology, they withstand heavy track use too. The only thing you really have to worry about with track use is making sure you replace the pads preventively at like 30% so you don’t introduce too much heat into the rotors as well as minimize the risk of running out of pad material. Once the rotor touches the brake pad backing plate, the damage to the rotors is irreversible.

[Sharocks]

So I don't have to log into Rennlist (hate that place, too much money for VW products LOL) can you ask them if they would do some sizes for the E46, E92, F8X and G8X communities?

I can crowd source this rather easily since Stoptech went bust and Girodisc has been getting confident (a little too confident).

[Bimma360]

Call me weird, it is weird, but I would be somewhat interested if they came with pads for the stock calipers hahah.

For someone like me, who already doesn't have the Porsche Brembo's, it would feel like a missed opportunity. $5k for the rotors and pads, with calipers (rebuild & refinish), lines, brackets... probably just under $7k all in? Fantastic for a CCB conversion.

I checked out their site, and it looks like they already offer a bunch of kits for modern BMW M cars, as well as other manufacturers. I think these guys should make a rotor/pad for the Alfa Romeo Giulia/Stelvio QV. Stock Alfa rotors F/R are 360/350mm, same as the E9X M3. With different hats, their hypothetical Alfa kit (rotors and brakes) would also fit both the e46 M3 and E9X M3. Almost 3 birds with 1 stone. You would just need caliper brackets for the Alfa 6 piston front and 4 piston rear. Assuming $5k for rotors and pads, you'd probably be just under $8K all in.

Anyway just talking out loud, but I think CCB's with stock calipers would be kind of crazy haha. Talk about OEM+..

[Bry5on]

Yes, you need pads made specifically for ceramic brakes. Pagid makes the RSC line, and Manthey Racing sell some too (which are rumored to be Pagid pads).

These rotors will come with pads which is nice.

350 mm PCCBs work great in the Porsche world. My 981 Cayman GTS had 350 mm PCCBs in all four corners and I loved it. My GT3 has 380F/350R PCCBs. I can’t really comment on track use because I haven’t tracked the GT3 yet, and I never tracked the Cayman.

Consider me interested

[0-60motorsports]

How about a Hell No to 5k. Seems like a lot of you are really bored and have way too much money sitting around LOL.

I would suggest sticking to stock/Girodisc etc and buy yourselves a porsche GT car with the extra cash y'all have lying around minus the track guys.

[SQ13]

How about a Hell No to 5k. Seems like a lot of you are really bored and have way too much money sitting around LOL.

I would suggest sticking to stock/Girodisc etc and buy yourselves a porsche GT car with the extra cash y'all have lying around minus the track guys.

$5k isn’t much once you consider how much our autistic asses spend on CSL parts, Supersprint exhausts, wheels, seats, chassis rigidity, etc.

$3,500 for Girodisc rotors and racing pads? Nahhhhh the $1,500 difference is worth it once you realize the benefits of the PCCBs. Steel brakes would end up costing more over the same amount of use, street or track.

And you don’t have to deal with brake dust. That’s a huge benefit for a lazy fuck like myself who hates washing cars. Seriously, I cleaned the wheels once on my Cayman during ownership, and I haven’t touched the GT3’s wheels yet.

[0-60motorsports]

$5k isn't much once you consider how much our autistic asses spend on CSL parts, Supersprint exhausts, wheels, seats, chassis rigidity, etc.

$3,500 for Girodisc rotors and racing pads? Nahhhhh the $1,500 difference is worth it once you realize the benefits of the PCCBs. Steel brakes would end up costing more over the same amount of use, street or track.

And you don't have to deal with brake dust. That's a huge benefit for a lazy fuck like myself who hates washing cars. Seriously, I cleaned the wheels once on my Cayman during ownership, and I haven't touched the GT3's wheels yet.

I rest my case you have way too much money to throw around LOL. Two words, GT3 or GT4 and close the case.

All that shit doesn't apply to me personally as I got my stuff 20 years back when it was dirt cheap and nearly free so here's my POV:

Giro disc it's only $1500 on a bad day for all four 355mm rotors. Pads are not too expensive either especially for track use when you do a bit of hunting. So yeah no where close to your $3500 (no idea how you can across that figure). You paying $2k for pads?!?!?!