993 C2S Brake upgrades
 

Hi, I would like to get more info on brake upgrade for my 1998 C2S.

the Turbo BIG RED front calipers, pads and rotors are plug N play? Do I need any other parts to completed the upgrade? How’s about the rear do I need the upgrade to RS? Or just the front upgraded would be good enough? Also does the Turbo rear calipers and rotors direct fit C2S? Thanks so much

Hi, just as an fyi, you can drive really hard on the brakes the c2s comes with. I guess not 10/10ths for long duration on track, but targa high speed stuff, oem was fine and I pushed.

Looking for more performance, I have a dedicated track 993 C2 with standard "blacks", no pedal fade, want more stopping power / no chance of fade, try more aggressive pads (tire figure into this also) from OEM and better brake fluid on the Blacks you have.

Want red caliper, you can refinish (w/ rebuild) what you got.

Blacks will give you all the street performance (in the US) that you can handle.

Just gotta have reds, then multiple threads on 993 (Red, RS, 3rd party) caliper upgrades and any adapters / rim concerns to consider.

https://rennlist.com/forums/993-foru...sion-help.html

I mean the reason I want to go with BIG RED is the look and performance too. The stock brake looks way too small for my eyes. My dealer quoted me $4950 for front Turbo and rear RS (calipers, rotors, pads and sensors) just the parts alone thou. What do you think?

As Kein_Ersatz alluded, I think a set of good high performance brake pads for front and rear, a couple of liters of high temp brake fluid and a red caliper paint kit will set you back about 1/10 of the above.

The C2S already has very good brakes for normal street and road use, perhaps you have track use in mind? If so, the brakes are just part of the upgrades you need to be looking at. Red paint and some decals will be a lot cheaper than going down that rabbit hole!

Guys he wants the look. Which is fine because big reds look fantastic and far better than small blacks. Yes you can get great braking performance out of small blacks. But you can't get big reds looks. Which are awesome.

Let's make this very clear: those "tiny" brakes on a stock 993 are more than up to the task. I tracked my car avidly (Time Trial flogging), with R-compounds and track pads, a fresh bleed of ATE, and never an issue with fade or lacking bite. None. Ever. In SoCal desert heat of 100+ degrees never an issue with brake performance whatsoever, over years!

So if adding unsprung weight to your suspension, and more expensive pad/rotor replacements, are what you want for the look, by all means have at it. Or paint those "little" suckers whatever color you like and save thousands of dollars. The factory did not skimp on braking performance one iota on the stock system, period.

Edward

Thank you Edward, which pads and rotors would you recommend for stock calipers ? I don’t track just maybe something better than OEM. Actually my car came with red painted calipers the previous owner had painted them but I want to upgrade the brakes so maybe save $5000 and get new pads and rotors like you said.

On a 993 wide body go with the turbo brake package at both ends, I wouldn't worry with the extra unsprung weight, it's minimal and the car will definitely look better, got to fill in those 18" wheels.

My .02cents.

Hey there Squires,

I used a track pad compound (PFCs iirc), but I'd never recommend such a hard pad for street use as they will squeal like a stuck pig and perform poorly if not heated up to track temps (so absolutely suck on the street).

When you say "upgrade" the brakes, I have to say again that these brakes leave the driver wanting nothing, seriously. The "stock blacks" in our 993s are already overkill for the street, canyons, and even autocross events (unless you want to get really competitive). I had even used the stock Textar pads at Time Trial events before I switched to track tires/brakes and they were still adequate, the latter simply offering me an edge in competition. No exaggeration; there is zero functional gain beyond the stock rotors and pads (stock Textar pads in the actual Porsche box, not merely "oem" btw).

Tha said, there are lots of folks here who can recommend this or that street pad as their choice. The only drawback to the stock Textars is brake dust; other pads are harder and will dust less (and eat rotors more so everything is an engineering tradeoff). But this is a small concession to me as the stock brakes never fade under the hardest street use, and brake performance (and feel) is always consistently superb ...and they remain silent, which is also important. So while others may chime in on their pad recommendations, I will recommend the stock pads/rotors for the simplest reasons: they work flawlessly without compromise, save the dusting (which btw I have Cup 2 wheels so are stupid-easy to clean, but with a more ornate wheel, I can see folks wanting a "cleaner" pad). Hope that helps you in your decision. No harm in wanting a particular aesthetic, mind you, as we all love these amazing 993s. I'm simply coming from a performance standpoint since that is what you raised. Hope that helps you a bit :D

Edward

2S has the same black brake calipers and smaller rotors as a regular 993.
bias is 1.659(good), pedal ratio is 37.342, acceptable for street use), develops 2306n-m front and 1390n-m rear, @70bar line pressure(but the rear is actually cut to 874 n-m by the p/v which can safely be eliminated)

you can do just the front
then bias goes to 1.889(worse but safe), pedal ratio stays the same, develops max 2381 n-m f and 1390 n-m rear @ 70bar line pressure(but again the p/v kicks in above 55 bar idf it's retained but now there is even more reason to remove it). If you change the m/c to a 25.8 the pedal goes to 32.786(great)

993RS
front will be the same as above but the bigger RS rear makes bias go to 1.426(perfect) pedal goes to 38.331( a move in the wrong direction) this is still ok and safe but not ideal, front brake torque is as above burt rear goes to 1618 n-m @ 760bar but again limited above 55 bar by the p/v, ideally you would want to use a 25.4mm m/c but installation is problematic as you either need to swap in a full electro-hydraulic system from a C4 or turbo or use an Alfa Romeo m/c which lacks the front end mount.

the 993tt rear is also available but while it uses the same big rotors from the RS has really tiny 28x4 pistons which sends bias to 1.997(awful) and pedal to 33.896( very good)

Wow, excellent summary and write up. Thank you Bill. Very informative.

Thank you everyone. I really appreciated your info.