Avant Rear Brake Upgrade - Rear Brake Porn by request

[M_GORDON]

Please, help me!
I don´t have mony, and I need rear brakes.
What I need to put S4 B5 brakes?

I can put UrS4 rear brakes?

[M_GORDON]

Fine upgrade!
But I don´t understand correctly, the pieces I need to upgrade to S4B5 265mm

Disks
Calipers
pads
handbrake cables
Anymore?

I need change the rear brakes and in spanish forums no one know anything

Thanks!

[ifa]

Little reminder: Carrier needs small grinding job to fit.

[europeanme]

just had mine fitted and the braided line I had made is too short...even though it is 20mm longer than the standard S4 one!!....but feels good though....

[Smith_S2]

I just did my conversion today and the hand brake cables were a nightmare to get on, they needed a lot of adjusting!

[waveydavey]

Fitted my 8E0 upgrade kit supplied by Ben on Friday.

Had to grind a little clearance on the caliper mounts to get them to mount up properly, had to make up two new brake pipes and some of the bolts supplied weren't quite right but that was as difficult as it got.

Until...... I trial fitted my 16" Avus wheel.

No problems with clearance on the caliper itself but the handbrake release spring rubbed against the wheel rim and got knocked off by a balance weight. After comparing the standard S2 caliper with the 8EO one with the spring removed I've come to the conclusion that there seems to be sufficient 'spring' in the 8E0 caliper to be able to run without the external return spring. Time will tell whether this is the correct decision. I'll be monitoring it to see if I get any problems.

Still got to get them bled properly and the handbrake is going to need adjusting before MOT time but a very nice easy conversion.

Cheers

David

[S2central.net]

Nice one Ben...

For the Coupe owners, check post #145 in this thread for all the parts required -

http://www.s2forum.com/forum/showthread.php?t=13798&page=10

Post #160 in the same thread has the caliper part numbers applicable to Coupe.

[s2avant]

Here is the list of parts we used on my conversion. This is for the Avant although the brake assemblies will fit a coupe. The B5 RS4 backplates and new handbrake cables are not absolutely neccessary.

Part Number	Qty	Description	  Retail	Notes
--------------------------------------------------------------
8E0615423C       1 	NS CALIPER        172.90	Silver
or
8E0615423F       1 	NS CALIPER        134.71	Black

8E0615424C       1 	OS CALIPER        172.90   	Silver
or
8E0615424F       1 	OS CALIPER        134.71   	Black

8E0615425B       2 	CARRIER            73.73 ea	Silver
or
8E0615425E       2 	CARRIER            73.73 ea	Black

N91036902        4 	BOLT                1.75 ea

8E0615601R       2 	BRAKE DISC         43.80 ea

4B3698451        1 	BRK LINING         48.31

8D0615611B       1 	NS B5 RS4 SHIELD   59.87
8D0615612C       1 	OS B5 RS4 SHIELD   59.87
N90444601        4 	SCREW               0.30 ea

8A0609721AD      2 	B4 HANDBRAKECABLE  20.40 ea

Like Paul, I am planning to get all my modifications documented and posted in my webspace. Not easy to find time at the minute though between working 50-60 hours a week and having a school website to develop in what little spare time I have

Ben

[S2central.net]

Sigh - the info is all out there guys.

Coupe uses RR/UrS4/S6 rear calipers - I posted the part number earlier today.

Avant uses the '8E0' rear calipers - more correctly the 'B7' in parts lingo - I also posted those part numbers in the past. I dry fitted some silver ones - Ben used black ones.

Paul

[geryS2]

I'll HAVE to do a proper write-up on this subject - the info is scattered across various threads. Some are sticky which helps but it needs to be on a static page somewhere !

Paul

Yep, that would be grate for guys like me who are not familiar with all parts number and names !


What calipers is used in this upgrade, the standard one from the S2 coupe or another ?

If it s that an easy upgrade it s the one all S2 owners are waiting for a long time !!

[AndersS2]

Ben,

Very nice job done on the rear upgrade.
Ever since I sold the old rs2 hubs ive been looking for an upgrade for the s2, and now the light have shined down to this thread

But, just a few and quick Q's:

1. Have I understood correctly that the caliper, bracket, bolts and cables do fit straight on from a B7 s4 (2005-2007)?
2. Can i ask of the price for it all(please pm me if its hush hush)?
3. This is a good upgrade to match a 996mono front upgrade (thinking of the bias)?
4. And if someone have the time and pleasure, parts nr is welcome to this list of upgrade.

thanks so much for making theese brake p0rn threads

[waveydavey]

Question is why would you want this under 16" alloys on the rear?

As it would seriously effect brake balance, better of uprgade the fronts 1st as this does the majority of braking.

My Avants suspension (standard springs, Bilstein front inserts, RS2 rears and RS2 F&R ARBs) is very stiff. Although I do occasionally think of fitting some 18s I do worry that the rubber band tyres would make the ride unacceptable, hence the question about keeping the standard alloys. I also like the stealth look of an outwardly standard looking car.

Have already upgraded the front brakes. I've been running 996 calipers with A8 314mm discs on Seat Cupra mounts for the last two years. Although they work well I get a lot of dive with heavy braking so it would be nice to give the back some better brakes to even things out.

Cheers

David

[S2central.net]

I'll HAVE to do a proper write-up on this subject - the info is scattered across various threads. Some are sticky which helps but it needs to be on a static page somewhere !

Paul

[s2avant]

The B7 rear brake assemblies are a straight swap for the B4 parts. Bolt spacing and disc offsets are identical.

Ben

[S2central.net]

This link compares the calipers -

http://homepage.mac.com/nugentp/PhotoAlbum13.html

Paul