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  1. #1
    Veteran Member Three Rings dazed1's Avatar
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    Track + brakes, Build week 36+

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    How many of you have taken the RS3 on track already? How did the brakes hold up? I don't have my car yet, but was on track with a couple new TTRS & a RS3 this past weekend at Laguna Seca.

    The TTRS had a complete soft pedal after the 1st session, and the RS3 lost all its pad before the end of 1 session. I am told that cars built after week 35/36 have an improved brake setup. So want to bump this up again when cars with build week 36 & over start coming in.

  2. #2
    Veteran Member Four Rings
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    Quote Originally Posted by dazed1 View Post
    How many of you have taken the RS3 on track already? How did the brakes hold up? I don't have my car yet, but was on track with a couple new TTRS & a RS3 this past weekend at Laguna Seca.

    The TTRS had a complete soft pedal after the 1st session, and the RS3 lost all its pad before the end of 1 session. I am told that cars built after week 35/36 have an improved brake setup. So want to bump this up again when cars with build week 36 & over start coming in.

    Never heard of this, what did they say they changed? You said you were on the track with the ttrs and rs3 were you driving or getting second hand feedback from others in those said cars.
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  3. #3
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by WAF View Post
    Never heard of this, what did they say they changed? You said you were on the track with the ttrs and rs3 were you driving or getting second hand feedback from others in those said cars.
    Didn't drive either of them. Rode with them since I didn't want to track the RS5 this time around.

    The TTRS brakes went soft (looking at foot work) and had to be flushed after every session or two. Pads were not an issue as there was plenty of meat left. He was running raybestos brake pads.

    The RS3 was literally smoking, had no pad left, and the rotor looked like shit.

    As for new brakes / changes - that is something I heard second hand from someone. An Audi engineer was at our event and had mentioned it. So curious on differences when we get our cars. I track with this group regularly (am a BoD of audi club golden gate chapter).

  4. #4
    Veteran Member Four Rings
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    hmm news to me interested in hearing more im probably one of the unlucky ones if thats the case.
    2018 RS3 Panther Black

  5. #5
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by WAF View Post
    hmm news to me interested in hearing more im probably one of the unlucky ones if thats the case.
    Yeah, in a way I'm glad I did not go pick up a TTRS. but, I would assume existing folks would have some sort of remediated fix.

    The TTRS calipers turned orange / catalunya red after a couple of sessions. He's also running Motul 660, which made it very surprising and apparent that there is a design flaw somewhere.

    On the bright side, the oil cooler runs wonderfully. Temps showed as 240-245 around turn 6/7, by the time we got to turn 11, they dropped down to 225-230.

  6. #6
    Veteran Member Four Rings Hyphy's Avatar
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    They changed the hats on the fronts. Can't confirm the rears.


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  7. #7
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by Hyphy View Post
    They changed the hats on the fronts. Can't confirm the rears.


    Sent from my iPad using Tapatalk
    Do you have any pictures of the differences? And do you have one with a newer build (not possible this fast I would think)?

  8. #8
    Veteran Member Four Rings Hyphy's Avatar
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    Track + brakes, Build week 36+

    It appears from this pic (apr shop rs3 and mine) that the entire rotor/hat parts are different. I doubt one is better than the other considering they're the same size. However, I'm not sure if there are any weight differences.




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  9. #9
    Active Member Two Rings
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    There are two sets of rotors out there (directional vs random) and which one you get doesn't seem to be tied to build week. I asked my salesman if he could somehow request the new rotors but he said that nobody he spoke to was even aware of the different parts.

  10. #10
    Veteran Member Four Rings LINDW4LL's Avatar
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    I'd imagine pads and fluid should do the trick. 370mm is plenty of rotor.
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  11. #11
    Established Member Two Rings javbomb's Avatar
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    Quote Originally Posted by Hyphy View Post
    It appears from this pic (apr shop rs3 and mine) that the entire rotor/hat parts are different. I doubt one is better than the other considering they're the same size. However, I'm not sure if there are any weight differences.




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    That APR car was on the same ship as my car, and I have the brake set up on the bottom.

    Wonder how they decide which rotors to use. Mine also definitely has the hats on the bottom.
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  12. #12
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    In for ttrs/RS3 stock brake setup to put on my S3 😂😂

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  13. #13
    Established Member Two Rings r32breeze's Avatar
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    Where can I get some ceramic pads for track use? I am not happy with the stock pads at all. Are the stock pads semi-metalic by the way?

  14. #14
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by r32breeze View Post
    Where can I get some ceramic pads for track use? I am not happy with the stock pads at all. Are the stock pads semi-metalic by the way?
    RS3 uses the same pads as the B8.5 RS5, 2012+V10 R8, etc. So any of those pads will work. I'd suggest changing the rotors & fluids as well if you're going to be tracking it.

    I used to run Pagid RS29 on the RS5, but could go a softer pad for the RS3 as its much lighter.

  15. #15
    Established Member Two Rings Dr Bill's Avatar
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    Did either the RS3 or TT-RS have issues passing sound at Laguna Seca? Or were they forced to go too slow from the brake issues to even matter?

    There are Audi Sport Performance parts for the TT-RS that include brake ducts. Not sure if they will make it to the US or not though. Better rear calipers would be a great upgrade. I hate those rinky-dink ones they use.
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  16. #16
    Established Member Two Rings r32breeze's Avatar
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    Quote Originally Posted by dazed1 View Post
    RS3 uses the same pads as the B8.5 RS5, 2012+V10 R8, etc. So any of those pads will work. I'd suggest changing the rotors & fluids as well if you're going to be tracking it.

    I used to run Pagid RS29 on the RS5, but could go a softer pad for the RS3 as its much lighter.
    yes, i will be tracking the car and will start with the pads first. Under heavy braking RS3 didn't satisfy me. I want to change the pads first. What do you think about the yellow stuff? Have you ever used them?

  17. #17
    Established Member Two Rings
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    Any updates on the difference in rotors and which hold up better. I just picked up a 2017 RS3 and will be hitting Road America next month. I can say that the Girodisc rotors work great (had them on my S4 and someone I know just put them on their TTRS. I'm tempted to order a set as spares in case I have issues....
    The "Go Fast" Car.....
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  18. #18
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by Dr Bill View Post
    Did either the RS3 or TT-RS have issues passing sound at Laguna Seca? Or were they forced to go too slow from the brake issues to even matter?

    There are Audi Sport Performance parts for the TT-RS that include brake ducts. Not sure if they will make it to the US or not though. Better rear calipers would be a great upgrade. I hate those rinky-dink ones they use.
    No issues with sound. But all 3 cars were stock for exhaust. So that's good.

    rear calipers are not an issue. Rear brakes are barely used.

  19. #19
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by r32breeze View Post
    yes, i will be tracking the car and will start with the pads first. Under heavy braking RS3 didn't satisfy me. I want to change the pads first. What do you think about the yellow stuff? Have you ever used them?
    One was using raybestos on the TTRS. The other was using some form of EBC, not sure on which ones. The pads were not an issue. There was plenty of material. The pedal just went soft. This was even after they were using Motul 660.

  20. #20
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by PeteJ View Post
    Any updates on the difference in rotors and which hold up better. I just picked up a 2017 RS3 and will be hitting Road America next month. I can say that the Girodisc rotors work great (had them on my S4 and someone I know just put them on their TTRS. I'm tempted to order a set as spares in case I have issues....
    Girodisc is in the process of making new rotors I believe. Same 370mm, so that should be good. Would absolutely buy them when available. Rather use slotted than drilled.

  21. #21
    Veteran Member Four Rings Hyphy's Avatar
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    Quote Originally Posted by r32breeze View Post
    Where can I get some ceramic pads for track use? I am not happy with the stock pads at all. Are the stock pads semi-metalic by the way?
    You're not happy at all? I'm curious..
    Nick
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  22. #22
    Established Member Two Rings r32breeze's Avatar
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    Quote Originally Posted by Hyphy View Post
    You're not happy at all? I'm curious..
    No, I will be tracking the car pretty soon.

  23. #23
    Veteran Member Four Rings littleredwagen's Avatar
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    Pagid makes RS29 pads for these calipers. Some of the best around. I had these calipers (RS5 bolt pattern) on my B8 S4 and the brakes were monsters on the track
    -Matt
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  24. #24
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by littleredwagen View Post
    Pagid makes RS29 pads for these calipers. Some of the best around. I had these calipers (RS5 bolt pattern) on my B8 S4 and the brakes were monsters on the track
    I know. I use the RS29's on the RS5 on track. They're really good brakes, but horrible on the rotors & temperature control. However, the RS3/ TTRS being a good 5-700lbs lighter should make it better.

    Looking to see how the current build cars are for brakes in comparison to the ones already delivered.

  25. #25
    Veteran Member Four Rings littleredwagen's Avatar
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    Quote Originally Posted by dazed1 View Post
    I know. I use the RS29's on the RS5 on track. They're really good brakes, but horrible on the rotors & temperature control. However, the RS3/ TTRS being a good 5-700lbs lighter should make it better.

    Looking to see how the current build cars are for brakes in comparison to the ones already delivered.
    That is the big issue with B8/B8.5 Cars is the weight. It makes the brakes work hard
    -Matt
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  26. #26
    Established Member Two Rings
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    I've had multiple conversations with them this week and they are working on rotors for the TTRS which is a different offset than the RS3. I will be running my old 380mm RS5/R8 Girodisc rotors next week (had to make a hub ring due to the larger bore on the 380mm rotors I have). I"ll be sending my stock rotor to them to measure the proper offset, mine look like the one's on the red car above.

    Regarding pads I just ordered a set of XP10's for the front and rear pads from Carbotech. I sent them all the details and measurements and they were able to match them up, fronts as stated earlier are the Brembo R8/RS5 pads the rears are the same as aa Mk7 Golf R.

    One thing I noticed is that my new RS3 has a 34mm thick directional rotor. The directional portion works great on one side but will pump air the wrong direction on the other rotor. Ridiculous design unless Audi anticipated that we would be doing really fast donuts...
    The "Go Fast" Car.....
    369" of Oldsmobile power by Rocket Racing
    best of 9.68 @ 136 mph and a 1.242 60'
    http://mbworld.org/forums/signaturep...ic160318_1.gif

  27. #27
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    ^ isn't that problem only on the early rotors? The ones with holes in lines.

  28. #28
    Established Member Two Rings
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    Quote Originally Posted by defau1t View Post
    ^ isn't that problem only on the early rotors? The ones with holes in lines.
    Not sure what you mean, can you clarify?
    The "Go Fast" Car.....
    369" of Oldsmobile power by Rocket Racing
    best of 9.68 @ 136 mph and a 1.242 60'
    http://mbworld.org/forums/signaturep...ic160318_1.gif

  29. #29
    Active Member Two Rings
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    Quote Originally Posted by defau1t View Post
    ^ isn't that problem only on the early rotors? The ones with holes in lines.
    Quote Originally Posted by PeteJ View Post
    Not sure what you mean, can you clarify?
    There are two sets of rotors. The older one has directional holes and the newer one has random holes. Unfortunately, it seems to be random which one you get with your car.

  30. #30
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    Hi PeteJ, please take a look at the images posted on this page of the 2 different rotors and hubs. The white APR car has "newer" rotors, drilled more randomly, with different hub pattern. The older car in red has the "older" rotors drilled in a straight line, and different hub.

    I was curious if the directional routing of the "newer" (top) brake was better than the bottom brake, and if it was not one sided.

  31. #31
    Established Member Two Rings
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    Quote Originally Posted by defau1t View Post
    Hi PeteJ, please take a look at the images posted on this page of the 2 different rotors and hubs. The white APR car has "newer" rotors, drilled more randomly, with different hub pattern. The older car in red has the "older" rotors drilled in a straight line, and different hub.

    I was curious if the directional routing of the "newer" (top) brake was better than the bottom brake, and if it was not one sided.
    Does anybody have the part number for the "newer" rotor. I'm curious if they are the same as the TTRS rotors. I know Audi has had issues with these rotors for years and am surprised that they still use them.
    The "Go Fast" Car.....
    369" of Oldsmobile power by Rocket Racing
    best of 9.68 @ 136 mph and a 1.242 60'
    http://mbworld.org/forums/signaturep...ic160318_1.gif

  32. #32
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    It almost seems like they used whatever stock they had left in the older rotors and then switched to the newer ones.

    I am still curious if the newer ones have the directional issue you mentioned. Is there a way I can confirm it on my car with the random holes (newer)?

  33. #33
    Veteran Member Three Rings dazed1's Avatar
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    Quote Originally Posted by PeteJ View Post
    Does anybody have the part number for the "newer" rotor. I'm curious if they are the same as the TTRS rotors. I know Audi has had issues with these rotors for years and am surprised that they still use them.
    TTRS rotors are a different size.

  34. #34
    Established Member Two Rings javbomb's Avatar
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    Just checked my rotors, indeed the direction is wrong on the right hand side! What a load of crap.

    I want new rotors.
    ------------------------------------
    RS3 Sedan '17 | Daytona Grey | RS Performance Package 2 | RS Design Package | Black High Gloss | Carbon Engine Cover | Matrix LED | Sunroof | Full Tint

  35. #35
    Established Member Two Rings
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    From facebook, possibly the newer brake part number: 8V0 615 301 S

  36. #36
    Established Member Two Rings
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    In working with Girodisc I've identified that the TTRS rotors are 370x34mm so the same size as those on the RS3 but the hat offset is different. What I'm wondering is if the "new"rotors have the same offset as the "Old" rotors.
    The "Go Fast" Car.....
    369" of Oldsmobile power by Rocket Racing
    best of 9.68 @ 136 mph and a 1.242 60'
    http://mbworld.org/forums/signaturep...ic160318_1.gif

  37. #37
    Established Member Two Rings
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    Quote Originally Posted by javbomb View Post
    Just checked my rotors, indeed the direction is wrong on the right hand side! What a load of crap.

    I want new rotors.
    That is nothing new to Audi and it goes back to the R8.
    The "Go Fast" Car.....
    369" of Oldsmobile power by Rocket Racing
    best of 9.68 @ 136 mph and a 1.242 60'
    http://mbworld.org/forums/signaturep...ic160318_1.gif

  38. #38
    Established Member Two Rings
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    Got mine out on Friday and I can say this DO NOT TAKE A STOCK RS3 OUT FOR TRACK USE WITHOUT PUTTING IN GOOD BRAKE FLUID AT A MINIMUM (Motul 600, Motul 660, Castrol SRF etc). The car didn't last one session at Road America without the pedal getting soft, On one session I pulled off into the pits to check tire pressures and when I got back into the car the pedal went to the floor. I pumped the brakes and the pedal started to come back, after a short drive I had pedal again.

    I'll be sending a rotor off to Girodisc for them to confirm fitment for the RS3 this week. Using their rotors on my S4 made a huge difference, I also suggested to someone I met to try them on his 2012 TTRS and his rotor temps (shot with an IR thermometer) used to max out at 610, with the Girodisc rotors temps dropped to 460.
    The "Go Fast" Car.....
    369" of Oldsmobile power by Rocket Racing
    best of 9.68 @ 136 mph and a 1.242 60'
    http://mbworld.org/forums/signaturep...ic160318_1.gif

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