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h3lp_c0mput3r
09-20-2006, 03:03 PM
what's the difference in brake setups on the B5 S4 vs the B6 S4? Rotor size, caliper mounting, etc.

are they the same?

It seems like B6 s4 have more replacements part choices available, can a B6 setup be made to work on a B5?

Cost is the motive here, would the trouble be worth it, or would it just be more cost effective to go with a big brake kit?

Thanks!

Tgr_Clw
09-22-2006, 02:37 PM
Just go with a BBK.

EBG 18T
09-22-2006, 03:56 PM
go with a BBK and be done. Tgr-Clw and i have the Stoptech setups and they work really well. The STaSIS/Alcon is the other kit to look at, very good kit, just a little more money than the Stoptechs. If you need to have the Brembo name on your stuff, Brembo makes a couple nice kits.

40ventiller
10-11-2006, 04:41 PM
Front rotor size
B5 S4 is 322
B6 S4 is 345

not sure about the rear

2PUTT
10-11-2006, 08:18 PM
as mentioned in a previous post...

this pic might help you decide...

http://img258.imageshack.us/img258/9813/img1357qn7.jpg

h3lp_c0mput3r
10-12-2006, 12:58 AM
^looks sick but $$$


these are good enough numbers for me:

Front rotor size
B5 S4 is 322
B6 S4 is 345

are they bolt on? if not directly, does anyone know what it will take?

thanks

40ventiller
10-12-2006, 04:44 PM
I'm not sure if the calipers are the same. You will probably need the rotors, carriers, calipers and the pads.

Unless you can source these items cheaply. An aftermarket BBK maybe a better deal.

Here's an idea:
Universal Brembo adapter ( you need a good machine shop to drill/tap for proper fitment.

http://cgi.ebay.de/mbt-Adapter-140-f-Porsche-u-Brembo-Bremssaettel_W0QQitemZ290038663540QQihZ019QQcatego ryZ33563QQrdZ1QQcmdZViewItem

A pair of porsche big reds for 322 disc from LA porsche dismantler.

ratty
10-12-2006, 07:02 PM
Originally posted by h3lp_c0mput3r
Front rotor size
B5 S4 is 322
B6 S4 is 345

are they bolt on? if not directly, does anyone know what it will take?

Both bolt up directly (assuming all hardware included) to a B6 A4, so I would _assume_ the same rules for a B5 S4 (but definitely not B5 A4).

B5 S4 calipers are big suckers - many aftermarket wheels won't fit without spacers. But, they are a twin piston sliding arangement.

B6 S4 has a single massive piston (still sliding obviously) so wheel offsets aren't such a big deal.

The B7 A4 runs the B6S4 caliper on the B5S4 disk so also an option...

Personally I like the B5 S4 setup, especially after running them on the track for the first time last weekend - good pads are enough to last out 5 hard laps without drama, and it was only the main straight where I ever had anyone close to my butt (which changed again about 100m before turn 1 where they jumped on the brakes & I didn't [:D] )

Devious27t
10-14-2006, 01:50 PM
FYI the B6 S4 calipers are quite large also. and FWIW the setup is pretty heavy. that is gonna be another major strength of a BBK is the massive weight savings. I have both B5 and B6 S4 brakes sitting in my garage right now [:D]

2PUTT
10-14-2006, 10:45 PM
Originally posted by h3lp_c0mput3r
^looks sick but $$$


these are good enough numbers for me:

Front rotor size
B5 S4 is 322
B6 S4 is 345

are they bolt on? if not directly, does anyone know what it will take?

thanks

32 pounds less in front of the car with the BBKs makes a huge difference. my wheels also took off 10 pounds each corner.