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Euro-Tuner
10-02-2008, 03:56 PM
I was hoping we could have an intelligent discussion about the BBK's that are available for our cars. I was reading the S4 thread and it was just one big fight after page 1. So, anyone with experience with any of these kits please chime in. This should help in the future, I searched and didn't find anything very definite for a thread (link me if I missed something).

Euro-Spec (http://www.mjmautohaus.com/catalog/product_info.php?cPath=6169_6170_6186_6188_6678_90 22&info=Eurospec_ESS600330B5A_Big_Brake_Kit_in_330mm_ Front&products_id=870)
AP Racing (034) (http://www.034motorsport.com/product_info.php?cPath=25_87_106&products_id=761&osCsid=fikse6h9bd1bhd447n4ko9urt7)
Brembo (http://www.autocarparts.com/part/194/183/)
Wilwood (http://www.wilwood.com/Centers/Information/notlisted/index.asp) Can be found here (http://www.rpiequipped.com/us/product_info.php?cPath=84_589_280&products_id=1660) or all brake stuff here (http://www.rpiequipped.com/us/index.php?cPath=84_589_280).
Stoptech |332mm| (http://www.stratmosphere.com/stoptech_a4_brakes.htm) 332mm also at MJM (http://www.mjmautohaus.com/catalog/product_info.php?cPath=6169_6170_6186_6188_6678_90 22&info=Stoptech_83.102.4600_Big_Brake_Kit_in_332mm_F ront&products_id=881) and 355mm at MJM (http://www.mjmautohaus.com/catalog/product_info.php?cPath=6169_6170_6186_6188_6678_90 22&info=Stoptech_83.102.4700_Big_Brake_Kit_in_355mm_F ront_4-Piston&products_id=3816)
Porsche (http://www.ecstuning.com/Audi-B5_A4-Quattro-1.8T/Braking/ECS_Stage_2v2/)
A8 upgrade (TT Carriers) (http://www.ecstuning.com/Audi-B5_A4-Quattro-1.8T/Braking/Big_Brake_OEM/)
Alcon (http://www.stasisengineering.com/Category_Detail.aspx?VID=32&PID=15) [13" kit] (http://www.034motorsport.com/product_info.php?cPath=25_87_2817&products_id=17864&osCsid=fikse6h9bd1bhd447n4ko9urt7) [14" Kit] (http://www.034motorsport.com/product_info.php?cPath=25_87_2817&products_id=17863&osCsid=fikse6h9bd1bhd447n4ko9urt7)
Moveit (http://movitbrakesusa.com/)
WP Pro (not much info on these) (http://www.lltek.com/a4_brakes.htm)
OEM BBK (http://www.ecstuning.com/Audi-B5_A4-Quattro-1.8T/Braking/ECS_Stage_1/)
Upgrade for Rear Brakes (034) [B7 S4 Brakes] (http://www.034motorsport.com/product_info.php?cPath=25_87_106&products_id=1170&osCsid=fikse6h9bd1bhd447n4ko9urt7)

<edited to include links to Wilwood kits - onemoremile>
[Updated/Fixed Dead Links 2/12/10 - Euro-Tuner]
[Added Euro-Spec 2/23/10 - Euro-Tuner]

Militant-Grunt
10-02-2008, 04:15 PM
OEM S4 Brakes: http://img201.imageshack.us/img201/9320/p4210110lm5.jpg

I will be doing an entire write up on the install (for the second time on my new car)

OEM B7 300mm Rears. (also will do a write up)

Euro-Tuner
10-02-2008, 04:21 PM
awesome, so when doing the S4 kit you need to replace the entire upright correct? are all s4 uprights aluminum?

djwimbo
10-02-2008, 04:29 PM
Personally I'm happy with my A8/TT setup up front. For track use I NEED better pads, AutoX and daily driving, they're great though.
I haven't upgraded the rears at this point, I would like to do the B7 S4 rears and the Boxster 4 piston up front.

Fitment of the A8 rotors, TT carriers and stock Swing wheels
http://i305.photobucket.com/albums/nn218/djwimbo/The%20Silver%20Saloon/DSCF0599.jpg

goody6691
10-02-2008, 05:36 PM
rpi equipped has a wilwood setup for our cars

317ssayzarc
10-02-2008, 05:39 PM
993TT's are sweet, I can vouch from a ton of experience with my Dads car [up]

Poopie
10-02-2008, 05:43 PM
OEM S4 Brakes: http://img201.imageshack.us/img201/9320/p4210110lm5.jpg

I will be doing an entire write up on the install (for the second time on my new car)

OEM B7 300mm Rears. (also will do a write up)

hhmmm nice...i like using oem parts.

blmlozz
10-02-2008, 05:49 PM
hhmmm nice...i like using oem parts.

the problem is that as a bbk option they are not cost effective unless the parts are free or extremely cheap since s4 brakes really are not that great.

Euro-Tuner
10-02-2008, 05:52 PM
rpi equipped has a wilwood setup for our cars

link? I couldnt find it.

ShawFM
10-02-2008, 06:32 PM
link? I couldnt find it.

Can be found here (http://www.rpiequipped.com/us/product_info.php?cPath=84_589_280&products_id=1660) or all brake stuff here. (http://www.rpiequipped.com/us/index.php?cPath=84_589_280) Good company I have been dealing with them for about 8 years.

Squarrl
10-02-2008, 07:59 PM
I have Boxster Front with D2 A8 rotors 312x25mm and B5 S4 rears I find it works very well.

317ssayzarc
10-02-2008, 08:04 PM
I have Boxster Front with D2 A8 rotors 312x25mm and B5 S4 rears I find it works very well.

I hated my boxster fronts, they didnt feel like a bbk should feel, I would expect that level of performance out of a factory car

Squarrl
10-02-2008, 08:14 PM
No they do feel like the A4 brakes should have felt from the factory

JumboBlack1.8
10-02-2008, 08:30 PM
Great thread, as I was researching the same stuff not 2 weeks ago......and about the S4 forum, it really is amazing how ANY discussion over there turns into an argument....Anyway


I think for your power output, if you wanted to piece together a relatively affordable setup (that is, if u don't wanna fork over the cash for Alcons, Brembo GTs, etc), then you could go with another Porsche option.....the 996 calipers, which apparently have much greater stopping force than the Boxsters and utitlizes the thicker S4 rotor (can't remember the exact sizes...). To balance the system out, do the S4 rear brake upgrade, and I believe you've got a relatively well balanced DIY Homebrew'd BBK for a fraction of the price of the big name stuff.......I believe Bira.org is the only company that makes a carrier for the 996 caliper and the B5 A4 platform, so contact them about. I personally went with the boxsters because they were affordable and still provided the amount of extra stopping power that I needed for my power goals (280whp).

bassed
10-02-2008, 08:32 PM
For a great Racing History, price and Pad/Rotor/Caliper combo check the AP Racing via 034. 320mm with Brembo Blanks and Fedodo 3000 Pads (sp?).

http://bassed.smugmug.com/photos/333195801_CTJjJ-L.jpg

A4Rob
10-02-2008, 08:55 PM
porsche boxster calipers off ebay. S4 oem brakes are not a BBK

DND
10-02-2008, 09:09 PM
How do you calculate the bias when you mix and match parts yourself so that you know you've got a good balance for optimal stopping?

Kyle H
10-02-2008, 09:10 PM
Be sure to read up in this thread: http://www.audizine.com/forum/showthread.php?t=217458 There was a lot of talking about front/rear balance that you should look into.

I don't have any experience with BBK's but from everything I've read, my dream setup would be the 13" Alcon front setup from stasis with the S4 rear's from 034.

Squarrl
10-02-2008, 09:25 PM
I am sure that the AP racing are much better and a great price. would probably want to run the 034 300mm rear upgrade with those too though.

hoganalley
10-03-2008, 07:23 AM
I don't know the exact formula to figure out bias and stuff because there's way too much involved in figuring it out. Due to piston size, number of pistons, the Hydrualic Pump setup...all those things matter.

All I did for mine, was figured out how much the increase was from stock front rotor size to the upgrade and applied that factor to the rears. I actually ended up with full A8 brakes. 312 up front and 269 out back. The 269mm rotors fit under the S4 rear calipers with A8 carrier brackets. From what I can tell it is a very balanced stopping method. You can go bigger if you want, but you have to remember that if you go huge you really should look into changing the master cylinder and maybe even the hydraulic pump.

Incedentally, if you ETKA the parts, the only thing that's different between the A8 and the A4 is the master cylinder. All other system parts are the same....everything bolts up with the right carriers!

DND
10-03-2008, 08:49 AM
Be sure to read up in this thread: http://www.audizine.com/forum/showthread.php?t=217458 There was a lot of talking about front/rear balance that you should look into.


Very interesting thread...
After reading it I concluded that 1) there are a lot of variables involved and 2) lowering your car and/or stiffening your suspension would be amongst those variables...

slayerrule
10-03-2008, 09:10 AM
Great thread, as I was researching the same stuff not 2 weeks ago......and about the S4 forum, it really is amazing how ANY discussion over there turns into an argument....Anyway


I think for your power output, if you wanted to piece together a relatively affordable setup (that is, if u don't wanna fork over the cash for Alcons, Brembo GTs, etc), then you could go with another Porsche option.....the 996 calipers, which apparently have much greater stopping force than the Boxsters and utitlizes the thicker S4 rotor (can't remember the exact sizes...). To balance the system out, do the S4 rear brake upgrade, and I believe you've got a relatively well balanced DIY Homebrew'd BBK for a fraction of the price of the big name stuff.......I believe Bira.org is the only company that makes a carrier for the 996 caliper and the B5 A4 platform, so contact them about. I personally went with the boxsters because they were affordable and still provided the amount of extra stopping power that I needed for my power goals (280whp).

yup those 996 calipers are a bit bigger than boxster calipers and go pretty well with b5 s4 rotors. pretty easy to mount them on b5 a4. ive got an extra set if anybodys interested. if you diy you will save a lot.

fred2ka4
10-03-2008, 09:57 AM
Well I did the B6 S4 brakes on my rear so if you need any help in the measurement department I can help with that although 034 does offer a kit now for the same application. I have the B6 S4 bbk from ECS Tuning on the rears and it looks and works great.

The fronts are a custom set up that I put together as well but the parts are a little harder to source so to duplicate it would probably not be cost effective.

onemoremile
10-03-2008, 11:27 AM
I'd go with the 034 AP Racing fronts and B7 S4 rears. If balance is an issue it can be helped with careful pad selection.

Long term economical considerations say to find a system that uses a common rotor size. That opens up the number or sources and improves both pricing and availability. You also get a lot more options. If, for example, you went with Boxster S calipers over S4 rotors you could run the DBA5000 or cheaper than stock blanks or anything in between.

When pricing a big brake system look at the cost of the system plus two rotor and three pad replacements. The cost of ownership can be a surprising test. At the very least I look at what it would cost for a second set of rotors and pads for the track. That second set can be anywhere from under 200 to over a grand.

onemoremile
10-03-2008, 11:30 AM
I'm going to move this over to the projects forum and see what happens. It has a good title and links to some great threads. The discussion is still wide open but try to limit douchebaggery, name calling, and other things a kindergarten teacher would make you sit in the corner for. There is enough of that crap in the other threads. [;)]

onemoremile
10-03-2008, 11:34 AM
16" Swings over Boxster calipers and A8 rotors.
http://i23.photobucket.com/albums/b397/onemoremile/SwingswithA8rotorsandBoxstercali-1.jpg

16" Swings over stock calipers, tt carriers, and A8 rotors.
http://i23.photobucket.com/albums/b397/onemoremile/SwingswithA8brakes-1.jpg

dougyfresh
10-03-2008, 11:38 AM
For a great Racing History, price and Pad/Rotor/Caliper combo check the AP Racing via 034. 320mm with Brembo Blanks and Fedodo 3000 Pads (sp?).

http://bassed.smugmug.com/photos/333195801_CTJjJ-L.jpg

Who else is running AP racing? I'm thinking of trying them on my B6.

bassed
10-05-2008, 10:43 AM
Who else is running AP racing? I'm thinking of trying them on my B6.

034 Is running them I believe on just about all the B5 Chasis cars.

pipe7284
10-05-2008, 11:27 AM
ECStuning BBK
Stg2 V.2
18x8.5 BSA Mercedez wheels
http://i127.photobucket.com/albums/p148/pipe7284/DSC01688.jpg
http://i127.photobucket.com/albums/p148/pipe7284/DSC01868.jpg

Sigma 3
10-07-2008, 05:00 PM
the problem is that as a bbk option they are not cost effective unless the parts are free or extremely cheap since s4 brakes really are not that great.

Just out of curiosity why do you think they are not that great. If my memory serves me correctly the stock breaks had the second best stopping distance in the european car s4 shoot out.

onemoremile
10-07-2008, 05:28 PM
The S4 guys love to bitch about their brakes. Then the B6 guys install them and love them. I've never had a problem with them.

t1demont1
10-07-2008, 07:21 PM
Everyone just needs something to complain about lol

$teady$upreme
10-07-2008, 10:07 PM
So for B7 S4 rears (300mm??), what parts are needed? I assume b7 s4 calipers, carriers and rotors?

Squarrl
10-07-2008, 11:20 PM
b5 s4 calipers + carriers and 034 adapters which are $75

docurley
10-08-2008, 03:09 AM
I run the bigger B5 RS4 brakes up front and they are brilliant with stock pads and I'm soon going to instal the RS4 rears to complete the setup and to keep cost down because the pads cost only $50 a set making it a cost effective upgrade.

B5 RS4 setups apear on RS246.com all the time for quite cheap money to top it all off due to the fact they all upgrade to B7 RS4 brakes.

$teady$upreme
10-11-2008, 12:03 PM
ok thx very much for all the information, they are very useful.

I already have my A8 front, now i just bought some parts for the rear. And here is my setup, is my bias going to be fine?

Front:
A8 plain rotors
TT carriers
A4 stock calipers

Rear:
B5 S4 calipers
B5 S4 carriers
B5 S4 rotor (for now)

Did i get the right parts for the rear? I am thinking down the road, I will get 034 adapters and put 300mm rotors at the back, what do you guys think?

I also have Goodridge stainless lines and PBR ultimate ceramics pads for both front and rear. I am currently using ATE super blue fluid, but it makes your clutch squeal, so i am thinking of changing it, what should i go with?

JumboBlack1.8
10-11-2008, 12:13 PM
I don't think you even need the S4 rears on that setup. You stopping distances don't decrease THAT much with an A8/TT front rotor setup, and the clamping power is relatively the same (from my experiences). So, the S4 rears might be overkill, unless you go with an upgrade caliper up front (like a Boxster BBK)

black99.5a4
10-11-2008, 01:39 PM
i've read and read and get conflicting answers... what does it involve to run the Porsche calipers up front?

onemoremile
10-11-2008, 07:35 PM
i've read and read and get conflicting answers... what does it involve to run the Porsche calipers up front?

Boxster calipers, specific carriers, A8 or A6 3.0 rotors.
-or-
Boxster S calipers, specific carriers, S4 rotors.
-or-
Bigger Porsche calipers with whatever carriers and rotors come with the kit.

$teady$upreme
10-16-2008, 09:15 AM
As of now, then i will just stick with B5 S4 rotors for my rear. If i upgrade my front to bbk then i will do the B7 S4 rear.

But for running this rear set up, are these the parts i need? B5 S4 calipers, carriers, rotors for my B5 A4?

And S4 rear pads are same as A4 rear pads right?



I don't think you even need the S4 rears on that setup. You stopping distances don't decrease THAT much with an A8/TT front rotor setup, and the clamping power is relatively the same (from my experiences). So, the S4 rears might be overkill, unless you go with an upgrade caliper up front (like a Boxster BBK)

audiFUEGO
10-17-2008, 09:12 PM
Boxster calipers, specific carriers, A8 or A6 3.0 rotors.
-or-
Boxster S calipers, specific carriers, S4 rotors.
-or-
Bigger Porsche calipers with whatever carriers and rotors come with the kit.

What year boxter? These "Specific carriers"... are they just the carriers off the boxter?

Anyone got the part numbers for the Boxter upgrade?

JumboBlack1.8
10-18-2008, 06:39 AM
986 Boxster calipers from 98' to 2004 I believe.....and the brackets can be had for $175/pair and SS lines for $89/pair from PureMs.....i've just pieced this kit together.....installing it next week

onemoremile
10-18-2008, 08:16 AM
I am currently using ATE super blue fluid, but it makes your clutch squeal, so i am thinking of changing it, what should i go with?

ATE Typ.200. It is the same as Super Blue but has no dye. It is one of the best fluids you can use for both performance and longevity.

BremboGuy
10-18-2008, 10:24 AM
986 Boxster calipers from 98' to 2004 I believe.....and the brackets can be had for $175/pair and SS lines for $89/pair from PureMs.....i've just pieced this kit together.....installing it next week

What size disc are you using with the Boxster calipers??

Hate to be the bearer of bad news, but you are potentially creating a system that will generate LESS brake torque than OEM. With the 36/40 mm piston diameters, any disc less than 13" will result is less braking force at the front axle.

The other problem with the 986 Boxster caliper is the limitations for disc thickness. The caliper will only properly accept up to a 26mm thick disc which does not allow for much (if any) increase in heat capacity. As you all know, increasing heat capacity is the #1 purpose of a BBK.

JaredVL
10-18-2008, 11:13 AM
Am being blind or do I not see STaSIS in there? I know that the original b5 A4 kit has been discontinued. But you can still run their stuff if you swap uprights.

BremboGuy
10-18-2008, 11:33 AM
CONTINUED:

The hard part to swallow is that there are many people running this and other similarly specced out kits and claiming to have noticed an improvement in performance and no notiecable compromise in safety.

That itself is simply a testament to the functionality of the ABS and controlled proportioning within the car itself. While it may compensate for a margin of error it does not guarantee optimum performance. What many people feel with these types modifications are actually and quite often mistaken for improved performance when in fact it is the exact opposite.

Firmness of the pedal and reduced pedal travel are a direct result of a decrease in piston area. Reducing piston area without making the appropriate correction for disc diameter or effective radius results in a decrease in overall brake torque.

The reverse of that is an increase of piston area (from calipers such as Cayenne or RS4) which results in an increase in pedal travel and and a more abrupt sensation of braking power. The common mistake is that this "improved response" or increased brake torque is beneficial when it actually creates a disruption in bias ultimately decreasing braking performance.

To make a little more sense of this here's a a link to a post I recently wrote for someone inquiring about the effects of certain changes to you brake system...

Brake System Design (http://www.audizine.com/forum/showpost.php?p=2973194&postcount=42)

I guess the good news is that modern ABS and electronic brake distribution is able to correct for a certain margin of error and allow the system to remain functional to a certain extent.
The bad news is that many of these types of systems do not actually yield the performance improvements that they promise or that you may be hoping for.
In more extreme cases the ABS cannot function properly and under extreme braking situations (not in a straight line) will become unstable and unsafe.

f15046
10-18-2008, 12:31 PM
I have an opportunity to get s4 brakes and install them on my A4. I can get the front aluminum uprights, axles, calipers, rotors, caliper bracket, and all the rear brake stuff. I know i will also need the flanges to slide into the front diff so I can blot the S4 axles to my A4 transmission.

My questions is: Is it worth the trouble? Will i see any improvements in braking? Will there be any advantages of the aluminum upright?

BremboGuy
10-18-2008, 06:27 PM
I have an opportunity to get s4 brakes and install them on my A4. I can get the front aluminum uprights, axles, calipers, rotors, caliper bracket, and all the rear brake stuff. I know i will also need the flanges to slide into the front diff so I can blot the S4 axles to my A4 transmission.

My questions is: Is it worth the trouble? Will i see any improvements in braking? Will there be any advantages of the aluminum upright?

What are you trying to accomplish?

Are you tracking the car?

Have you experienced any problems or failures with your current brake setup?

What type of performance gains are you expecting or hoping for?

How much is the full swap going to cost you?

Lastly, have you weighed the cost associated with that route vs/ existing BBK's from reputable companies like Alcon or Brembo that are developed specifically for your vehicle?

In the end you are still paying money for something that most of the S4 guys are not happy with. While it may be a slight improvement over what you have now, is it worth the money for a marginal improvement just to have an "upgrade"?

B5Burn
10-18-2008, 07:02 PM
Who else is running AP racing?

I don't have any good pics, but I have 4 piston AP's, love them.

Cue the cross-drill hate

B.

http://members.shaw.ca/billreburn/IMG_7147.jpg

f15046
10-18-2008, 07:03 PM
I am parting an S4 out for a friend of mine, and since I am the one removing all the parts from the car he is giving me a few parts that I want (bumpers, sideskirts, brake system, etc. )

I have never tracked the car. I have been to the mountains a few times. I have only had my A4 brakes fade on me once. I currently have slotted rotors, with some good pads (I think they are PBR)

I have not found anything wrong with my current setup. As mentioned above the only cost to me will be stainless brake lines, good brake fluid, maybe upgraded pads, and time/aggravation.

I wasnt sure what kind of gains to expect. I drove my buddies S4 on several occasions before he wrecked it, and the brakes felt the same as mine. I was thinking with better fluid and stainless brake lines, that the feel could be improved.

JaredVL
10-18-2008, 11:31 PM
CONTINUED:

The hard part to swallow is that there are many people running this and other similarly specced out kits and claiming to have noticed an improvement in performance and no notiecable compromise in safety.

That itself is simply a testament to the functionality of the ABS and controlled proportioning within the car itself. While it may compensate for a margin of error it does not guarantee optimum performance. What many people feel with these types modifications are actually and quite often mistaken for improved performance when in fact it is the exact opposite.

Firmness of the pedal and reduced pedal travel are a direct result of a decrease in piston area. Reducing piston area without making the appropriate correction for disc diameter or effective radius results in a decrease in overall brake torque.

The reverse of that is an increase of piston area (from calipers such as Cayenne or RS4) which results in an increase in pedal travel and and a more abrupt sensation of braking power. The common mistake is that this "improved response" or increased brake torque is beneficial when it actually creates a disruption in bias ultimately decreasing braking performance.

To make a little more sense of this here's a a link to a post I recently wrote for someone inquiring about the effects of certain changes to you brake system...

Brake System Design (http://www.audizine.com/forum/showpost.php?p=2973194&postcount=42)

I guess the good news is that modern ABS and electronic brake distribution is able to correct for a certain margin of error and allow the system to remain functional to a certain extent.
The bad news is that many of these types of systems do not actually yield the performance improvements that they promise or that you may be hoping for.
In more extreme cases the ABS cannot function properly and under extreme braking situations (not in a straight line) will become unstable and unsafe.
brembo guy huh?

interesting

Euro-Tuner
10-19-2008, 06:13 AM
lots of great info!

edit:

I'm really happy with the direction this thread is going.

Does anyone have weight differences from when you installed your BBK's compared to your stock brakes?

djwimbo
10-19-2008, 07:40 PM
*I'm an idiot, never mind.*

onemoremile
11-04-2008, 07:09 PM
that is just beautiful.


I don't have any good pics, but I have 4 piston AP's, love them.

Cue the cross-drill hate

B.

http://members.shaw.ca/billreburn/IMG_7147.jpg

RS2urq
03-07-2009, 05:16 AM
Brakes can be bling or functional. What do you want them for? I have raced Motorola Cup A4 with stock brakes and they were adequate. Upgraded to Boxster calipers which improved modulation but not stopping power.
I have three 5 cyl Audis all upgraded:
1. RS2urq with 2Bennett floating rotors 332x32mm 993tt calipers, which are awesome both in stopping and modulation
2. 93 urS4 S8 331x30 rotors, 993TT calipers, noisy, good modulation and stopping power
3. 95.5 Avant, 321x30 Euro A8 rotors, 993TT calipers, good modulation and stopping power

I do not track these cars, but no difference detected between two rotor sizes or feel. Much better than carrera calipers on Euro A8 rotors (I upgraded from this)
4. 2002 V8S6, 332x32 Stoptech rotors and ST-40 calipers. I never thought I would notice the difference between Brembos and Stoptech, but the StopTech are awesome improvement over HP2's,

Pads make a big difference, and Axis and Textar used above.

Audi just did not go the extra distance for good braking.

Folks here talking about Cayenne or 355 mm rotors, beware of creating and out of balance system. I feel the 332x32 rotor is all you need. The extra rotor mass in the 32mm vs. 30 mm rotor makes a big difference.

I cannot imagine ever fading the any of these brake systems I have used. I know the Boxster system will, and if you look at the swept area of the Boxster, you will notice you are going backward in area, as these are limited to 25mm rotors.

Measure twice, cut once. Get the best you can afford. Stock rotor sizes are the least troublesome, but the rotors are much heavier than two piece floating rotors. Replacement cost of rotors will become an issue later on

rogerius
03-08-2009, 07:07 AM
Brakes can be bling or functional. What do you want them for? I have raced Motorola Cup A4 with stock brakes and they were adequate. Upgraded to Boxster calipers which improved modulation but not stopping power.
I have three 5 cyl Audis all upgraded:
1. RS2urq with 2Bennett floating rotors 332x32mm 993tt calipers, which are awesome both in stopping and modulation
2. 93 urS4 S8 331x30 rotors, 993TT calipers, noisy, good modulation and stopping power
3. 95.5 Avant, 321x30 Euro A8 rotors, 993TT calipers, good modulation and stopping power

I do not track these cars, but no difference detected between two rotor sizes or feel. Much better than carrera calipers on Euro A8 rotors (I upgraded from this)
4. 2002 V8S6, 332x32 Stoptech rotors and ST-40 calipers. I never thought I would notice the difference between Brembos and Stoptech, but the StopTech are awesome improvement over HP2's,

Pads make a big difference, and Axis and Textar used above.

Audi just did not go the extra distance for good braking.

Folks here talking about Cayenne or 355 mm rotors, beware of creating and out of balance system. I feel the 332x32 rotor is all you need. The extra rotor mass in the 32mm vs. 30 mm rotor makes a big difference.

I cannot imagine ever fading the any of these brake systems I have used. I know the Boxster system will, and if you look at the swept area of the Boxster, you will notice you are going backward in area, as these are limited to 25mm rotors.

Measure twice, cut once. Get the best you can afford. Stock rotor sizes are the least troublesome, but the rotors are much heavier than two piece floating rotors. Replacement cost of rotors will become an issue later on

I was doing some logs for the new turbo setup and just want to let u all know that after 12 hard brakingd from 240km/h to 0, my BB started fading.I had to stop and let them cool down.I have front 6pot cayennes on 350x34mm disks and rear 4pot cayennes with 330x30mm disks.So yes fading occurs.

Euro-Tuner
03-08-2009, 07:12 PM
well I just sent an email to all of the companies listed in the original post asking the exact weight on their kit for our cars. I'll post back all the info as soon as it comes in.

In the meantime, does anyone have the weight on the stock front brakes?

Euro-Tuner
03-09-2009, 02:27 PM
Weights:


Hi John,

The weight of the complete kit really differs quite a bit depend what set up you desire, I can give you some info on our parts and you can piece together the total weight.

S6 caliper: 1,432g

L6 caliper: 1,822g

8pot caliper: 2,564g

EVO 12 caliper: 4,046g

typical single piston sliding caliper is around 4,800 g

Rotors and other weight varies depend on application, i.e. if the car requires deep rotor hat, the overall rotor weight would increase due to the extra material etc, the same goes for brackets.

Sincerely

WP Pro North America


Jon,

We offer more than one brake kit option for the A4 with different rotor sizes, but the average weight would be about 30lbs per corner.

Feel free to contact us if you have any questions.


I'll post the others when I get them

More:


Jon,

Thank you for the inquiry and use of Wilwood Disc Brakes. We do not have any kits listed for the 200 Audi A4. We offer a kit for the 1.8 Turbo Jetta and Audi TT, but we cannot confirm it will fit the A4.

Regards,

MJ

...I email back with the link to RPI Equipped so we'll see what happens with that.

alen
04-16-2009, 07:39 PM
ATE Typ.200. It is the same as Super Blue but has no dye. It is one of the best fluids you can use for both performance and longevity.

Jim, I understand the only difference between the super blue and typ200 is the amber color in the typ200. Would this eliminate the clutch squeal as aforementioned with the super blue?

b5a4gt28
04-16-2009, 08:07 PM
Here are my 993 tt brakes. I'm now running rs4 wheels. I just recently replaced the rotors and pads and it wasnt cheap![headbang][headbang]
http://i215.photobucket.com/albums/cc165/b5a4gt28/Mypics023.jpg
http://i215.photobucket.com/albums/cc165/b5a4gt28/brakes-1.jpg
http://i215.photobucket.com/albums/cc165/b5a4gt28/Mypics051.jpg

Euro-Tuner
04-17-2009, 07:38 AM
Jim, I understand the only difference between the super blue and typ200 is the amber color in the typ200. Would this eliminate the clutch squeal as aforementioned with the super blue?

from what I've read, Yes it will.

RS2urq
05-15-2009, 08:14 AM
Just adding to my previous post and comment, "I cannot imagine fading the BBK upgrade" applies to street use. As mentioned before, pads and proper brake-in are very important.

Also, brake cooling. My race cars have elaborate brake cooling ducts and integral ducting at the center of rotor. When I loose a flexible duct during a race, brake fade creeps in. Passenger cars just don't have the need for this type of cooling.

Many folks writing here are taking big passenger cars to the track and because these cars can produce fast straight speeds have more braking usage than our lighter more agile racing machines which are driven mostly either full throttle or full brake, never ever coast or engine braking (keep this in context).

The question of unsprung weight is also mentioned indirectly. Big brakes (lighter if Al hats)and heavier if bigger rims/tires. Different equation as unsprung weight is not as critical on a road car, but is with my 3 piece ultra-light BBS race rims and superlight Wilwoods. Longevity vs. Lightness. Each has its own application.

Very helpful series, as we all are looking for the best package for the money. I have been a proponent of 993TT calipers using the largest Audi OEM rotors for street use (heavy anchors). I have recently discovered certain "loss-leader" offers for StopTech brakes (Stratmosphere's winter pricing) that were an awesome quality value.

fred2ka4
05-16-2009, 08:00 AM
Fronts: Porsche 911 Calipers & ECS Tuning S2 V2 Rotors w/ custom machined brackets


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche050.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche056.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche055.jpg


Rears: ECS Tuning S4 Rotors & Calipers w/ custom billet adapters


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche065.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche067.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche085.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche084.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche089.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/AudibigbrakesPorsche087.jpg


Installed:


http://i78.photobucket.com/albums/j91/fred2ka4/washed018.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/washed012.jpg


http://i78.photobucket.com/albums/j91/fred2ka4/washed008.jpg

jcb.
05-16-2009, 09:28 AM
99 avant with B7 Brembo 8 pots on 360mm floating discs
parts required for a B5 upgrade :
s4/Rs4 outer CV, S4/RS4 upright, calipers, discs, pads of choice and hoses (goodridge motorsport custom hoses in this case)
http://i40.photobucket.com/albums/e221/bewsh/IMAG0276.jpg

onemoremile
05-16-2009, 09:40 PM
Jim, I understand the only difference between the super blue and typ200 is the amber color in the typ200. Would this eliminate the clutch squeal as aforementioned with the super blue?

yes. the blue dye is the problem.

rogerius
05-17-2009, 06:00 AM
fronts:
http://img87.imageshack.us/img87/3586/img0131gh2.jpg
rears:
http://img521.imageshack.us/img521/6431/rear4ud3.jpg
side view:
http://img521.imageshack.us/img521/1407/rear3zi0.jpg

audiFUEGO
05-17-2009, 08:44 AM
Does anyone use dimpled rotors? Do you hear weird noises when braking and driving?

If not, Does anyone experience weird noises with either drilled or slotted rotors?

supernafamacho
09-17-2009, 04:56 AM
I use ksport 356mm and 8 piston caliper with ebc yelowstuff pads,awesome¡¡

http://img127.imageshack.us/img127/2097/frenosaj9.jpg

4ringking
12-15-2009, 06:51 PM
Here are my 993 tt brakes. I'm now running rs4 wheels. I just recently replaced the rotors and pads and it wasnt cheap![headbang][headbang]
http://i215.photobucket.com/albums/cc165/b5a4gt28/Mypics023.jpg
http://i215.photobucket.com/albums/cc165/b5a4gt28/brakes-1.jpg
http://i215.photobucket.com/albums/cc165/b5a4gt28/Mypics051.jpg

993tt brake upgrades, I can get the parts for a good price....

pja0750
12-16-2009, 06:22 AM
993tt brake upgrades, I can get the parts for a good price....

please tell me where cause i need rotors and pads [:D]

Euro-Tuner
02-11-2010, 11:57 PM
Just updated a couple things. I was also wondering if anyone has had any fitment issues as far as offset goes?

capea4
02-12-2010, 01:01 PM
I have the RPI wilwood kit. Best part of that kit is pads, there are SO many pads available at super cheap prices. I ended up swapping the front calipers to a larger piston. The caliper that RPI includes left the brakes somewhat numb, with a lot of rear bias. The larger pistons fixed that. i also run B5 s4 rears.
http://www.audizine.com/gallery/data/500/medium/194659-4-07_front_brake.JPG

Euro-Tuner
02-23-2010, 03:01 PM
^^Nice!

Just update to add euro-spec and add a couple more links.

Euro-Tuner
02-23-2010, 03:32 PM
yup those 996 calipers are a bit bigger than boxster calipers and go pretty well with b5 s4 rotors. pretty easy to mount them on b5 a4. ive got an extra set if anybodys interested. if you diy you will save a lot.

Where did you get the caliper carriers for the 996 calipers and S4 rotors? and what pads are used?

jrock
02-23-2010, 08:57 PM
I have the 996 calipers up front and I used evoms adapters... fit perfectly over my b5 s4 rotors from adam! I also have hawk pads. Cant remember which ones right nowbut mjm hooked me up.

Turbwhistle
09-05-2011, 10:33 PM
I am going to try and bring this thread back a bit. I seem to be hearing good things about the rpi wilwood kit, but i didnt hear anything about the eurospec kit, they are roughly the same price, also is stoptech out of the question? Which is the best bang for your buck? links below. I am sure they all are good, but which would you go with?

rpi kit- http://www.amimotorsports.com/store/cart.php?m=product_detail&p=2110
eurospec kit- http://www.mjmautohaus.com/catalog/product_info.php?cPath=6169_6170_6186_6188_6678_90 22&info=Eurospec_ESS600330B5A_Big_Brake_Kit_in_330mm_ Front&products_id=870

stoptech kit- http://store.excelerateperformance.com/stoptech/stoptech_big_brake_kit/83102460071/i-210173.aspx

rotora kit- http://store.excelerateperformance.com/rotora/rotora_complete_brake_system/rbk05601/i-278299.aspx

ECS Tuning-Audi
09-06-2011, 09:12 AM
Here are my 993 tt brakes. I'm now running rs4 wheels. I just recently replaced the rotors and pads and it wasnt cheap![headbang][headbang]
http://i215.photobucket.com/albums/cc165/b5a4gt28/Mypics023.jpg
http://i215.photobucket.com/albums/cc165/b5a4gt28/brakes-1.jpg
http://i215.photobucket.com/albums/cc165/b5a4gt28/Mypics051.jpg

Ah yes the rally slot rotors! I haven't seen those in quite some time! Very nice!!

Feel free to shoot me a PM if anyone ever has any questions about our brake kits!

Jason

GOODBYNAAIR
08-21-2012, 01:57 PM
OK so i read over most of this and over most of the white paper, and if im reading it right upgrading to something like the AP racing 321mm or the 318 mm boxster or the eurospec 330mm in the front and the b7s4 in the back should balance out pretty well right ? If not sorry if this seems noob but I guess im not one of the brake guys but I would really like to know/ understand it the right way. thanks all please bare with me.

TheKid84
01-01-2013, 12:22 PM
Im seeing all these awesome brake up grades and not so great body kits :p each and to his own I guess..

A4Rob
01-07-2013, 08:03 PM
Im seeing all these awesome brake up grades and not so great body kits :p each and to his own I guess..

you are also bumping a pretty old thread [rolleyes]

GOODBYNAAIR
03-26-2014, 08:20 PM
Be sure to read the edits about ECS tuning [mad]

I know old thread but why make a new one. I have boxster calipers from ECS tuning stg2 on the 312mm rotor they are the calipers for the 986 97-04 right ?? because I need new pads soon. ecs does not carry them any more or I would just look up the part though them. Part number for the pads 98635193915 ?? can any one confirm this for me please.


Edit :they also do not make replacement 2 piece rotors anymore eh. This being said, has anyone looked into another company like stoptech or brembo to see if they make a 2 piece rotor that would by chance match up with the ecs 2 piece. For the replacement part ?

I really dont want to down grade to a one piece A8 rotor if I dont have to![:/]

thanks.

Edit 0n 6/15/17

Its old news now but i'd like to give every one a heads up (ECS IS A JOKE!). I talked to ECS on the phone and gave them there part #, they said I could just use the A8 rotor. (with that kit based on the part number I gave them) so I picked up a set of A8 rotors from them. That is the last thing i'll ever buy From them! I got them in and they were to small for my carriers (that ecs made too,that I also gave them there own part number ) ECS's 2 piece rotor is about 330x25mm, A8 is 312x25mm so I had a nice bit of pad hanging off the rotor not going to fly! called ecs and asked them for a shipping label I want to return the part you told me would fit the kit you don't make any more. They said NOPE you have to pay for shipping. or we can sell you the smaller carriers for more $$$$.

Note that I had spend a lot of money with ECS before this (performance and service parts etc)

So in the end I payed for shipping both ways and still had no parts that would fit! very unhappy costumer! [mad]
If you find yourself in my shoes don't buy the smaller carrier from them (if they even sell it anymore).

other links that will work with the 986 calipers and 312x25 rotor (A8 )



http://www.apikol.com/index.php/products/braking/brake-brackets/b5-a4-boxster-brake-brackets.html $239

http://www.usrallyteam.com/index.php?main_page=product_info&cPath=188_267_194&products_id=1893 $150

http://www.purems.com/Products/BS002.PURE-Motorsport-Boxster-Caliper-Brackets $174

ECS Tuning-Audi
03-27-2014, 10:08 AM
I know old thread but why make a new one. I have boxster calipers from ECS tuning stg2 on the 312mm rotor they are the calipers for the 986 97-04 right ?? because I need new pads soon. ecs does not carry them any more or I would just look up the part though them. Part number for the pads 98635193915 ?? can any one confirm this for me please.

thanks.

Check your PM

Jason

2stroke
05-28-2017, 03:58 AM
I have just bought a ( B7 ) Audi A4 Avant Quattro

Front brake PR-code: 1LT --> What disc size ?
Rear brake PR-code: 1KP --> What disc size ?

The brakes are not satisfying.
What AUDI/VW parts do you recomend for a small Big Brake upgrade ?


.

Crispy222
07-12-2017, 10:17 AM
I have just bought a ( B7 ) Audi A4 Avant Quattro

Front brake PR-code: 1LT --> What disc size ?
Rear brake PR-code: 1KP --> What disc size ?

The brakes are not satisfying.
What AUDI/VW parts do you recomend for a small Big Brake upgrade ?


.

WRONG SUB-FORUM, this is B5 aftermarket BBK discussion.

B5 Quattro
03-12-2020, 05:07 PM
Quick question for you guys.
I have 6piston Brembos I want to put on the front and 4 piston calipers for the rear. Anyone know of someone that can or has made brackets for them to mount up?
(B5 A4)
Thanks guys.

Jam'sAudiFix
04-23-2020, 03:22 PM
Try VoshMods or search "brembo rear bbk upgrade bracket"

You need a provision for your e brake as the factory brake wont fit the new bracket. Voshmods sells a nice kit and has some good info on their page about it.