Golf R32/R/S3 Rear Brake Upgrades?

[th3_f15t]

Probably been covered before, but what upgrades are there for the R32/R/S3 that use the 310mm rear brakes from the factory? I've only ever really seen 2 modifications which is a Forge Motorsport kit or the rear brakes from a Cayenne/R8/Gallardo, both of which are a little pricey!

Is there truth in using a larger 330mm rear discs from some sort of Audi? Just want to work out a good, non-bank braking way of being able to bank on my brakes (I'm here all week).

[Shoduchi]

I'm looking for a R32/R20 rear brake setup. If you find anything better, give me a price for yours.

In your place I'd look into an used Cayenne/R8/Gallardo rear brakes. A friend of mine has it in his Golf mk5 GTI APR Stage 3.

[th3_f15t]

I'll certainly look at what's involved, ideally a set up that wouldn't require spacers is ideal as I'm doing some maths at the moment and figured I can run staggered offsets/widths which will keep my current track unaltered. But I'm not completely against running rear spacers.

[Shoduchi]

He has replica Detroits that are 8J and ET35, with 25 mm wider front wings from SRS Tec and rear rolled arches.

[teo_parvu]

There is one more kind of an upgrade, two piece rear rotors from VWRacing. Pricey though! 

@Shoduchi - If you're after the R32 setup you should try these part numbers from TRW, they are the same as the OEM ones (TRW is the producer). I found them really cheap: 

TRW BDA690 - R32 caliper carrier rear left

TRW BDA691 - R32 caliper carrier rear right

TRW BHS938 - R32 caliper rear left

TRW BHS939 - R32 caliper rear right

http://www.mister-auto.pt/pt/suporte-pinca-de-travao/volkswagen-golf-v-1k1-1-4-fsi-90cv_v17743_g1009.html
http://www.mister-auto.pt/pt/pinca-de-travao/trw-bhs938e_g78_a161BHS938E.html

Combine them with Zimmerman Coat Z discs and that's it! 

[rich83]

There is a 335mm disc upgrade from an Audi which I believe uses the same r32 caliper. I think it requires a hub change tho.

[Shoduchi]

@teo_parvu Well, you convinced me to get the brakes now. Got the calipers and the right carrier from an ebay shop: http://www.ebay.co.uk/usr/partsrunner. And ordered the left carrier from Mister Auto: http://www.mister-auto.pt/pt/suporte-pinca-de-travao/trw-bda690_g1009_a161BDA690.html.

Total (with shipping) of 337,92 €.

I think I'll order EBC Redstuff for the rear as well. Just need to find the discs now.

PS: Mister Auto required a deposit for the calipers, to be returned when I returned my old calipers, which I don't have. The ebay shop didn't have the left carrier.

[Shoduchi]

Rear brake discs ZIMMERMANN Sport Coat Z 310 mm from Oscaro.es: http://www.oscaro.es/juego-de-2-discos-de-freno-otto-zimmermann-gmbh-100-3309-52-3608531-82-p.

I'll order the pads from a local shop.

[teo_parvu]

Super! This is what I've got, they are the same as OEM.
Except one thing, the slotted rotors are prone to cracks, I've got these:
Zimmerman 100.3309.20
http://www.oscaro.es/juego-trasero-de-2-discos-de-freno-otto-zimmermann-gmbh-100-3309-20-2006485-10020-p

[Shoduchi]

Super! This is what I've got, they are the same as OEM.
Except one thing, the slotted rotors are prone to cracks, I've got these:
Zimmerman 100.3309.20
http://www.oscaro.es/juego-trasero-de-2-discos-de-freno-otto-zimmermann-gmbh-100-3309-20-2006485-10020-p

I've made the request to Oscaro.es to modify my order. I hope they read it before they process my initial order.

[teo_parvu]

Now we have the same setup. :)
This improves stability under hard braking!


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[Shoduchi]

@teo_parvu Thank you for your help!

What pads do you recommend? Ferodo DS2500?

[teo_parvu]

Yes, DS2500 is what I'm using.
It is a good idea to have rear pads with a lower friction coefficient than the fronts. So you have a bit of oversteer under braking. ;)

@Shoduchi - Forgot to mention that it is the same pad as the one you have now. Gti and R32 rear brakes are using the same pads.

[th3_f15t]

He has replica Detroits that are 8J and ET35, with 25 mm wider front wings from SRS Tec and rear rolled arches.

Hmm, I like the idea of a full Cayenne brake set up... As much as I'd love VW Racing front brakes, the cost of those compared to upgrading all the brakes all round against VWR ones, just means the Cayenne upgrade makes sense!

[Shoduchi]

Yes, DS2500 is what I'm using.
It is a good idea to have rear pads with a lower friction coefficient than the fronts. So you have a bit of oversteer under braking. ;)

@Shoduchi - Forgot to mention that it is the same pad as the one you have now. Gti and R32 rear brakes are using the same pads.

I didn't know that... Searched EBC official site and it didn't have any pads for the R32 rear brakes but they list all for the GTI.

So I ended up ordering the DS2500 from here: http://www.nh-tuning.de/Brake-technologys/Ferodo-Bremsbelaege/Ferodo-DS-2500/Hinterachse/VW/Ferodo-DS-2500-Bremsbelaege-Hinterachse-VW::132335.html.

Oscaro.es didn't have Zimmermann standard Sport Coat Z discs, just perforated, so I changed my order for the normal ATE discs: http://www.oscaro.es/juego-de-2-discos-de-freno-ate-24-0122-0219-1-1767650-82-p.

I got EBC Redstuff for the Brembo 18Z front calipers. Now I'm not sure if they'll go well with the DS2500 in the rear.