Triathlonkid

Hi everyone,
I've always been curious, and have never driven a 911 w/ PCCB equipped.

For a carrera T S or GTS type car, can you feel a difference if equipped with PCCB vs. the regular brakes on daily surface street and freeway driving during more urgent braking moments?
Does it make you feel you have more braking control during unpredictable events like when you need to suddenly brake to a stop? (this is not about proper driving distance, etc. This is assuming a variable out of your control requiring sudden stop despite optimal defensive driving).

I feel my default S brakes are good, but had to suddenly come to a stop recently and wish it were even better.

Would love to hear your own individual experiences.

Bc on this forum people to stray away from the question:
-this is not a debate about whether PCCB is worth the cost or not.

Thanks for any input.

Fishah

In one isolated stop, there's basically no difference.

rk-d

Honestly you need to just try it yourself. People get all testy about this.

PCCB have a combination of immediate power and high level of modulation - ie they aren't grabby. The net result is they feel super precise.

dixonk

I changed from steel to carbon. My takeaway with street driving is consistency and pedal feel. With the carbon brakes when you press the brakes you get the same feel everytime and more linear braking. I much prefer the feel of the carbon brakes. Hard to describe but driving them back to back the pedal just feels different when it grabs the carbon rotors vs steel. The weight reduction is substantial as well. Carbon brakes are better in every way except for price.

ipse dixit

Yes, there is less initial bite with the PCCBs, especially when cold.

Otherwise, no.

fxz

yes when raining PCCBs don't brake well , keep the iron
but change the pads because some hairdresser crying for squeeling the Oem ones dont work well these days

20C4S

Don't forget about the weight saving. You should be able to feel the difference other than just in braking.

ipse dixit

Not in daily driving.

Unless you're driving with the aim of going to jail.

ipse dixit

This is more of an issue with your tires, than your brake rotors and/or pads.

LeftLane50mph

In my experience, PCCB has significantly worse stopping distance when rotors are cold (when near freezing outside).

When warmed up, stopping distance on the street is about the same as regular/steel.

On HPDE track sessions with multiple braking from 130 mph to 40 mph (PCCBs should be superior in this use case), I am unable to tell the difference. Maybe if the session was 1 hour, I’d experience brake fade on steel, but I’m just a casual California Porsche owner and not a hardcore track guy.

But hey, the calipers/rotors look cool and produce no brake dust. Is that worth $9k? Up to you.

detansinn

Agreed with the above. If you're planning on driving in the cold and/or the wet on the street, the initial bite won't be confidence inspiring if you haven't touched the pedal in a bit -- the PCCBs will wake you up.

That's not to say that it's unworkable in those conditions. You can adapt your driving to this characteristic. Giving the pedal a little pressure, or a good tap, every once in a while can improve that initial bite when you need it, ie. do active things to keep them warm-ish. For example, if you've been driving in the cold on the interstate for an hour or so, hitting the brakes to warm things up ahead of your exit is a very prudent thing to do.

wintershade

This is my experience also going from 992C2S with steel to 992TTS with PCCBs.

PCCBs feel awesome. I don’t think you need them though and it’s not a safety thing. It’s an unsprung mass, pedal feel, fade resistance on track thing.

Bruce R

You'll feel it every time you wash your car and don't have to spend an inordinate amount of time on the wheels.

null

I've heard this a number of times, and it makes me wonder how, if this is the case, Porsche doesn't include a disclaimer about poor cold-weather performance. The notion that you need to somehow prepare in advance if you plan to use the brakes in wet / cold environments seems like something the Porsche lawyers would be all over...

dixonk

I have been driving mine in the 20s and low 30s and I have not noticed any reduction in braking ability at street speeds or driving around. I don’t think a disclaimer is warranted.