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Thread: Gallardo / Audi Brake Rotor Options.

  1. #19
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    Yea i noticed that, Looks like you could just use the RS5 brake pads? Not sure if they would extend through our caliper as well.. but maybe you need the RS5 calipers for the full effect.

    This is why i'll probably just do the 380mm Girodisk rotors in the future as it will always be cheaper to replace the rings after the first set.
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  2. #20
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    What is the advantage of the wave rotor anyhow?
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  3. #21
    Registered User marklar182's Avatar
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    Quote Originally Posted by Korben007 View Post
    What is the advantage of the wave rotor anyhow?
    Less rotating mass
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  4. #22
    Registered User lswing's Avatar
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    Quote Originally Posted by Korben007 View Post
    What is the advantage of the wave rotor anyhow?
    Heat dissipation of the rotor. The wave creates more surface area than just a standard curve. More surface area to air, allowing more heat to leave the rotor. Read this on one the manufacturer pages, seems to make sense.
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  5. #23
    Registered User G2's Avatar
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    Far as I can tell ONLY the C5-RS6 uses directional rotors for Left and Right sides. Spent plenty of time working on a R8 lately and I know for sure the rotors run backwards on the right side. Unfortunate to see this. But obviously huge cost savings for VAG...

    Probably makes little to no difference unless someone tracks the car-- definitely on the R8. It's brakes are awesome; so NOT nose heavy like our 6's- the rear pulls down and feels planted like a 911 under hard braking (love it). Would say the RS6 is possibly the exception with "needing" directional rotors, due to experience with warped rotors (on 2 cars) that are street driven. Will be checking out a 3rd RS6 next week, original owner, always dealer serviced-- see how that one fares on it's first test drive.

    For cheap would stick with Zimmerman rotors to keep the function. Obviously the newer style rotors may appeal visually to some. I can get any of the those rotors for fitment checking, but would need some committed orders to justify the time. Cost competitive compared to on-line seller and with warranty (sounds like some places do not accept returns or do warranties).

    I currently have a new set of RS6 OEM front rotors sitting in my office.
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  6. #24
    Registered User G2's Avatar
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    Quote Originally Posted by lswing View Post
    Heat dissipation of the rotor. The wave creates more surface area than just a standard curve. More surface area to air, allowing more heat to leave the rotor. Read this on one the manufacturer pages, seems to make sense.
    Due to the rotor thickness, any gains in heat dissipation in the wavy design can't be much. But maybe enough to offset the rotor vane design? Only those running the brake dyno's know the truth....

    On the flip side some thermal mass is lost, but it's a cleaver way to keep weight down -- possibly cost too -- while potentially making a bigger rotor to increase the mechanical advantage. I think it's a collaboration between marketing and engineering to make the cars stand down more. And the bean counters. That's the tug-o-war that always took place when I was in engineering.
    Cheers, G2/Gary
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  7. #25
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    Ok, Since I already figured out the front.... it's now someone elses turn to figure out the rear...

    Turns out the new RS7 has wavy 14" rear rotors, and boy does that offset look so close! You would just need (I hope) a caliper spacer to move it up like the fronts. OR maybe the RS7 caliper will work.

    Click image for larger version. 

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    SOMEONE MAKE THEM WORK lol

    Audi TT guy did it with the same size S7 rear rotors and brackets...

    http://forums.quattroworld.com/tt2/msgs/37332.phtml
    Last edited by s8prtotype; January 26th, 2015 at 06:01.
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  8. #26
    Registered User hahnmgh63's Avatar
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    They are directionally vaned but is there a left & right side? I think there's just one part #?Click image for larger version. 

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  9. #27
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    There isn't, one side fits all haha.
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  10. #28
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    So, I'll throw another one in the mix. For the RS5 so it should fit ours right?
    http://www.6speedonline.com/forums/a...brake-kit.html
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  11. #29
    Registered User LIRS6's Avatar
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    Quote Originally Posted by RS8 View Post
    What size are the rear brake discs you're talking about, because I find these Audi RS5 2013-2014 on ebay and 330mm brake discs are smaller than the RS6 C5 ?

    http://www.ebay.com/itm/Disc-Brake-R...f49315&vxp=mtr
    Really? $738 a piece? (I saw no mention of pairs)
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  12. #30
    Registered User hahnmgh63's Avatar
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    That's $150ea more than Genuine sells the OEM RS5 rotors for.
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  13. #31
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    Quote Originally Posted by hahnmgh63 View Post
    So, I'll throw another one in the mix. For the RS5 so it should fit ours right?
    http://www.6speedonline.com/forums/a...brake-kit.html
    As long as that lower bracket mounting point is the same as ours then yes, it will bolt right up.

    Pretty good price for this whole kit.

    http://www.ecstuning.com/News/Audi_B...014/ES2793048/

    I'd ask what the rotors and brackets/bolts cost only... Don't need all that other stuff unless you need pads and lines.

    The only thing that might be an issue is if that rotor hat hits the bracing we have on our stock calipers, looks close.
    BB GT28's w/ Tial Wastegates, Full 3" Open Exhaust, Wagners, Billet Triple Disk Converter, Built Trans, Exedy Friction Disks, ECU/TCU Tuned, 450/AEM400/1000cc/AFPR, E85, R8 Coils, Nubcake Tuned. Fastest RS6 in the USA :)

  14. #32
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    S8prototype has covered this pretty well but I thought I would also throw in my observations of the RS5 scalloped rotors.
    1. They are directional but left & right are the same so don't know if it really matters when inside of a spinning wheel.
    2. They have 15 sets or 4 drilled holes compared to 14 on the OEM RS6 rotors.
    3. OEM weight 26.1lbs (Not the 27.5lbs JHM claims for stock rotors) and the RS5 are 23.4lbs so a fair amount of weight savings but they are not the diameter of a wheel so not a huge rolling/spinning weight savings.
    3. As S8prototype said, they do fit the RS6 hub/rotor/pad just as OEM.
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  15. #33
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    These with the forged volks up front makes me happy on the weight loss savings
    BB GT28's w/ Tial Wastegates, Full 3" Open Exhaust, Wagners, Billet Triple Disk Converter, Built Trans, Exedy Friction Disks, ECU/TCU Tuned, 450/AEM400/1000cc/AFPR, E85, R8 Coils, Nubcake Tuned. Fastest RS6 in the USA :)

  16. #34
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    love the 380mm front kit but JHM is the only place that makes a matching rear kit
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  17. #35
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    Another option I can't believe I never looked up before; Girodisc 380mm two piece front rotors:

    http://www.girodisc.com/Girodisc-Fro...S6_p_6543.html

    In typical Girodisc fashion, they are quite expensive at $1,300. They offer front and rear 2pc rotors for my BRZ for only $1450 for all four
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  18. #36
    Registered User hahnmgh63's Avatar
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    Girodisc is just a couple of hours North of me in Bellingham, WA. Porsche club has a Tech session up there in a couple of weeks, if I'm in town I may just head up there. Maybe they'll give me a discount?
    2003 White RS6 2013 Midnight Blue S5
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