EBC brake pads
 

Last month I installed 4 new Sebro slotted rotors as well as EBC yellow pads. I broke them in a performed the curing procedure per the instructions and all was good. Excellent braking feel and performance.

Went out last week on the track for an AZ PCA DE event on the East Track Wild Horse pass and ended up in group DE3. I did 5x 20 minute sessions. The car performed really well, brakes exceptionally well, but upon coming back in the pits on the last session of the day (pushed hard), the front brakes were smoking.

Today I drove the car some and found that it takes a big amount of brake pedal pressure to stop. No vibration or noise or sponginess, just lots of brake pressure.
rears look in good shape.

Here's a photo of the front right pads. Looks like they are sort of chipping off the edge. Are these pads damaged/cooked? Do I need to de-glaze them? Should I bleed the brakes?

http://986forum.com/forums/uploads02...1487454211.jpg

You'll end up finding that the pads have to be warmed up a little to feel like they did at the track.

I have been thru at least 8 sets of EBC Yellows and this is normal.

With so much grip, its easy to use the brakes to their maximum ability and get them hot as hell and then see a little bit of smoke when you come into the pits.

Then, after a track day, they will not grip as well as they did at the track. After a little bit of driving and a little heat, they will return to normal.

The pads are well cooked but not beyond their intended design so you should be good for your next event. Just be sure to regularly change the brake fluid (using a high temp fluid) since its getting cooked too.

Take a look at my worn pads and fluid: Spec Boxster Build - New Brakes

^^^^
Yea, what Tom said :D

I also use EBC Yellow and Red and what you are experiencing and seeing is normal

Have you noticed much difference between yellow and red on the track and/or on the street?

Yellow has a much higher operating temp. If you brake hard on the track, you will get there.

Yellow Streetable track pad
Red trackable street pad

Yellow - dust
Red - ceramic, low to no duct

YMMV

I used to use EBC Red on the track, it worked well for me and matched up well with the Hankook R-S3 tires I run. On the track I got plenty of dust but less so on the street.

Looking back at my records I ran these pads from October 2014 through November 2016. In that time I ran 1 set of backs and 2 sets of fronts.

• 1st front set lasted 7500 miles with 8 track days. 3 of the fronts pads were still ok but one was getting pretty thin. I had read somewhere that you could/should swap brake pads around to even the wear. I did this and I think it accelerated my wear. Maybe I did it wrong but I ended up with one that was really thin compared to the other 3 so I had to replace.
• 2nd front set lasted 5972 miles with 11 track days, and I got the last few days by swapping around the fronts with the 3 good fronts I had from before and using the best 4 pads.
• Rear set 13472 miles and 19 track days and still had some life left in them.

Jay has it right - the EBC Red is a trackable street pad. They performed well for me, but are not super long lived under those circumstances.

I considered going to EBC yellow but at the last event I drove with the Reds, I was hanging out with one of my early instructors who has an F class Boxster S and he took me out in his car and I really liked the way his brakes felt, and he was using the Carbotech XP8/10 combo so I went with that. The Carbotechs were really noisy on the street until my first track day with them - since then thy have settled down "some". In my opinion they are a little too powerful to be matched with the Hankook R-S3, it is quite easy to get into ABS. They are well matched with a tire like the Nitto NT-01, tremendous braking power and control, easy to modulate, harder to get into the ABS.

I'm running re71r's for my track days. I don't do that many, only 6 or 8 per season. Guess I should stick with the reds. Thanks for the input.

I am running RE-71R with Yellows and its a good match for track

For DD I have Pilot Super Sports and PowerStop ceramic pads and they work great as well

For AX, I use the powerStop or Reds and RE-71R

RE71 is a sticky tire, yellow would be fine, also my son runs ebc yellow on his Miata, yellow is a great pad and he is still on the original set. Red is good too. But if you do more track they wear faster :) red is probably one of the lesser dust pads track pads that works on the street. His yellows don't squeal either.

Decisions decisions :)

Edit: You have red right now? There you go, solved :) it is a great pad.

When they run out, then you can decide what to do next, if you were happy with them, get them again.

Just back from a 2 day event and I'm running into braking problems.
RE-71 R tires on 18" wheels, Redstuff pads on Meyle drilled rotors.
When the brakes are cool for the first 5 laps or so they are nice and smooth. After that, as they get hot, the start to shudder getting progressively worse. I' thinking to switch to yellowstuff or perhaps pagid orange as well as adding the gt3 vent ducts. Any opinions on this?

It's likely that your rotors are warping from the heat. How is the braking in normal driving after the track day? Is it okay, or is there still shuddering?

I bought a set of really cool drilled and slotted Chinese rotors on eBay for the remarkable price of $100 for all four. They were great on the street, but on track they started shuddering after about two laps, and even if you took it really easy, they shuddered like crazy. Once back on the street, they were fine.

I ended up getting a set of Meyle rotors (non-drilled, I have a 2.7 model) in the hope that I won't have any more warping issues. I'll find out shortly, I'm going to a track day this Friday at Pacific Raceways, which is very hard on brakes. My last event there I faded my EBC greens, so I moved to reds.

On e they cool down, they are fine again, even on the track.

That is almost the same setup I'm running - RE-71R on 19" wheels, EBC Yellow Stuff, and gt3 vent ducts. I haven't had any problems with brake fade on track days.

Edit- add Meyle drilled rotors also.

The GT3 ducts are like $4 each now, with shipping it is like $11 or $12, I bought an extra set because I ripped one off one time when I had a spectacular spin:) Definitely get them, it is a no brainer upgrade :)

Okay, I'm in! Just ordered my Yellowstuff pads. Note to Canadian friends: Tdot Performance has these in Canadian dollars, free shipping, no duty or brokerage! Porsche dealer has the ducts in stock for $5.80 Canadian! Yay!

99 out of 100 times, brake shudder comes from pad material being transferred to the rotor.

Pad material transfers when the rotor exceeds the operating temperature of the pad.

Essentially you have two options:

1. Add more brake ducting
2. Switch to a higher temp pad

EBC Yellows are a good pad for any track car on street tires (read: not R-compound). They do wear out quickly during track use, but they have a great progressive feel once up to temperature. Be warned though, their friction coefficient (amount of bight they have) at lower temperatures is noticeably less than at operating temperatures.

Finally, I am happy to hear that nobody has recommended Carbotech brake pads.

Worse...

Pad...

EVER!!!

With EBC Yellows, I could get 8-10 hours of track time on one set of pads. Meanwhile, these POS Carbotech XP24s looked like this after just 7 hours.

http://i.imgur.com/MlBU41a.jpg

Wow! Man, that is ugly!
On inspecting my rotors (Meyle) today, I noticed that there seems to be an irregularity in the thickness of the disk as you rotate them. There is some friction from the pads on part of the disk and less as you rotate it. I first thought that it was warped but when I put my calipers on it, there seemed to be a variation in thickness. Strange. To be varified.

When I had an issue with "warped" rotors on my daily driver, I came across this article - Warped Brake Discs and Other Myths of the Braking System, The author says discs don't warp, but pad material accumulates irregularly around the disc surface which is what the disc runout really is.

Hmmm... Interesting read!

This occurs when you run two different pad compounds on the same rotor. If the compounds are not compatible - then you can get a lot of irregular accumulation of pad material. One way to get it off is to use a very abrasive pad - such as a Hawk blue and drive the car with the brakes cold and dragging the brakes.

just as another note, I was very pleased with the EBC yellows at the track, but will second that for a few days after, the initial bite is a bit wonky. They do appear to be the cheapest trackable pads out there, but I do anticipate replacing them every 3 weekends or so.

I run YellowStuff on the track

I get about 8-10 track days out of a set and I replace them when they get below around 6mm. I do keep the "old" set in my track box in case I need to replace one at the track

I find they work pretty well cold as well as hot.

By far the lowers cost track pads. If you shop around you can find them for under $125 an axle. Summit racing stocks them or dropships them form EBC so delivery is a few days at worst. They also will beat any advertised price by $1.00 an they have free shipping. It can be pricing from 2 different places as well for the price match

would Redstuff and Yellowstuff be compatible? The compounds are different (Redstuff is ceramic, Yellowstuff is aramid??, whatever that is).

I have switched between red and yellow and back without any issues

besides, if you bed the pads when you change them, it removed the old pad material and replaces it with new

I've put 8 DEs and 3 XCrosses on my EBC yellows.
I run Orange group (intermediate-advanced) so I probably don't push as hard as time trials or races. The fronts have maybe 3-4 mm left and the rears barely started.
Heading to INDE Motorsports Ranch in Wilcox AZ this Saturday and I believe this will be the last event for me this summer:( getting hot! Bringing another set of front pads just in case.

3-4 mm on pads is not enough for track use
Remember, pad thickness impacts cooling and the thinner, the less cooling

I would only use pads that thin as replacements if I blew out pads and had a just a session or 2 left

I had bad shuddering issues at my first track day with my new Meyle rotors. It was on the fronts, as I could really feel it in the steering. My old rotors didn't give me this problem, but I'd get brake fade after a few laps of heavy use with the EBC Reds. With the new rotors, they warp (or at least feel like it) before I got brake fade. Previous to the track day, I made sure that I bedded in the pads to the new rotors properly.

I already have the larger brake cooling ducts (not the enormous GT3 ducts, but the larger than stock ones).

What do you all think I should try? EBC Yellows? A different, higher quality and thus more expensive set of front rotors?

Same boat: Reds on Meyles. Sudder when hot, no shudder when cool. Meyles look almost new!
I've opted for New Zimmermanns on the front. Going to season them this week with my reds and probably track them next week with the reds. I haven't received my yellows yet and I don't think I'll have time to bed them for this event.

Thought I should update this older post. I changed the rotors and ran them with the reds. Same problem, judder when hot. I replaced the pads to yellows: wow! No more problems! Too bad I didn’t change the pads before I bought new rotors. :rolleyes:
Ran the rest of the season on the yellows.

Great info, thanks NewArt!

I love EBC yellows, I was running reds at first and not only did I get a shudder I was able to push back my brake points by a whole number at VIR after going to yellows. I can’t say enough good things about the yellows. They also don’t squeak like hawks. The only down side is I get 3-4 track days out of a set (changing the once 25% is left). I’ve bought so many sets of these Amazon put one of those easy purchase buttons on my dashboard.

Can y'all please help me out?
I'd like to order some yellow pads for my track day coming up. Unfortunately, even on EBC' S website, they lust 2 parry numbers, both say REAR on them.

What are the correct part numbers for a 2003 boxster S?

DP41514R rear
DP41208R front

That's what I finally ordered yesterday... But every site I've looked at (including EBC) says both of those are rear. I finally assumed it was an error. Thanks for confirming.

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Interesting to see the love for EBC pads. Over here nobody serious uses these pads. I used the greens a long time ago on a different car.

Well, there are certainly better pads available but the price says it all. Yellows last me a season last year and don’t squeal like a freight train on the track nor on the street. Avoid the reds if you track.

a full season?????? How many events are you doing?

Short season where I live. I only did 4 or 5 events.

I just recently did a brake pad replacement and used ebc red's, and holy *bleep* does this sound like a freight train if you don't GENTLY come to a stop. It's only been a couple days and less than 50 miles of driving since I bedded the new rotors and changed the pads, think I'll give it a week or two before I make hasty decisions.

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