R32 Brakes.

[gobbleplease]

Ive ust bought a set of fronts and rears from ebay , does anyone know where to buy a good set of lighter discs and some decent pads for an R32 Cheers !

[Manu_R32]

I have been wanting to get some new discs like the drilled ones but i have no idea about brakes. What size do the discs need to be for the .:R32 and where could i find some? Dont mean to hijack your thread Gobbleplease but as its on the same topic thought i might just add to it...thanks :)

[danishmkvgti]

345mmx30mm 

[RobH]

read this thread, should answer your questions http://www.mk5golfgti.co.uk/forum/index.php?topic=8753.0

[gobbleplease]

read this thread, should answer your questions http://www.mk5golfgti.co.uk/forum/index.php?topic=8753.0

Ta Rob, good help ! but after the last feckin 8 hours of looking does any one in the world know where too buy two piece r32 discs with a link, i looked non stop today with no luck, 

[DaveB@Vagbremtechnic]

read this thread, should answer your questions http://www.mk5golfgti.co.uk/forum/index.php?topic=8753.0

Ta Rob, good help ! but after the last feckin 8 hours of looking does any one in the world know where too buy two piece r32 discs with a link, i looked non stop today with no luck, 

Gobble Please (Gr8 username!)

I think theres little point in trying to save weight on discs with the R32 setup, it is what it is, it has its limitations for track work but will perform well on the road. Trying to put a two piece disc next to an iron caliper/carrier is like getting a train to Euston and getting off at clapham and paying twice the price for your ticket.

Would reccomend a good quality drilled/grooved single piece disc with good quality pads and take what it gives you at minimum cost, you could well pay double for some fancy discs and get an extra 5% performance for the 1% of the miles you drive on the track. The drilling/grooving will give an amount of heat protection for your pads but ultimately they will reach a limit on track.

Hope you dont mind me butting in just my £0.02, and incidentally Im not sure a 2 piece or particularly lightweight solution exists (just to save you some time!)

Cheers

[gobbleplease]

Cheers mate, when you say "has its limitations for track work" do you mean that it wont benifit over the standard set up ?
i would be interested in your opinion as from other topics you seem to know your stuff about brakes ?

Although from my previous experiance where  i  up graded my standard m3 set up to the larger caliper carriers and discs of the CSL (extra 20mm ) i also added castrol srf fluid, braided hoses and performance friction carbon metallic pads which drastically reduced fade and improved bite. I was thinking that this set up would work simelar to the m3 set up which i was very happy with.
Although i am worried about the extra weight, TBH i cant see an extra 7KG per side being noticable in the handleing stakes. compared to the extra ability the braking will have

[RobH]

7kg per wheel in unsprung weight is quite alot is it not

[Nikiforos]

+1
In my opinion it may be double price a 2-piece disc,but afterwards you have to change only the rotors when needed.
Especially when you use non-rotor friendly trackday pads,disc ware is bigger.
The question is where can we find 2-piece 345 discs for R32 fronts?

(I will use carbotech X8 pads which I use on my other car with very positive feedback)

[Nikiforos]

7kg per wheel in unsprung weight is quite alot is it not

312 kit=13.5KG   345 kit=20.5kg per corner

[RobH]

ATE do 345mm two peice disks, im pretty sure its in the thread i posted earlier. Carnt remember how you calculate unsprung weight but 28kg works out to be alot.

[gobbleplease]

It sounds a lot yes but is it enough extra weight to make a differance, i dont think so !. Ill Soon Find out though.

[DaveB@Vagbremtechnic]

7kg per wheel in unsprung weight is quite alot is it not

312 kit=13.5KG   345 kit=20.5kg per corner

And the 350x34mm kit complete with 6 pot front calipers from a GT3 RS Porsche is probably nearer 21kg per corner, you need mass to deal with the heat. Anybody gone tracking with 25mm wide discs knows that.

Obviously if you have £1700-£2000 quid to spend on brakes then we can get lots of boxes ticked but if you are planning on putting £400 into a set of discs and still using iron calipers then its the wrong way to go in my opinion. Better to deploy that money into something liek some Porcshe calipers and having probably 30 different pad compounds to choose from as opposed to the 2 or 3 you can get for a S3/R32 setup.

I'm not having a go at the R32 setup at all, its a great £3-400 upgrade whereby you get £3-400 quids worth of improvement over the stock 312's so by definition good value. As long as you are aware of its limitations, operate within them which means the odd "non hardcore" track day and they'll be great. It may be able to do "Harder" core trackdays with some cooling ducting and some custom made pads

As in most forms of motorsport you can quickly get into the realms of diminishing returns for the more money that you spend, spending greater amounts for smaller improvements. I would suggest that you spend the money wisely and get as much power/stopping for your money as you can.

Edition 30 owners with Pescaras will ultimately need to realise that they are hog-tied by those wheels with very limited room for any upgrades at all. It would either be the B5 RS4 setup (Good pad availability) the Mk5 R32 /S3 setup (Crap pad availability) or the aforementioned custom £2000 setups probably based on a 28mm wide disc as there isn't much room for anything much thicker.

[tony_danza]

Fancy 2 piece discs on pig iron single piston calipers is a waste of your time and money. To get any level of performance you're going to have to run a very harsh pad, which you can't buy. Carbotech will do custom if you send them some old backing plates, but it'll cost.  

Buying some nice 4/6 pot calipers and running grooved OEM discs and hardcore pads will give far greater rewards. Ducting will assist in heat management and you'll have a half decent solution. Pads are much cheaper on common caliper types like Brembo/AP/Alcon too...

For example I run CL RC6s for hot/dry days and Carbotech XP8s for cold/wet days, both of which were less than £150 a set - find an R32 pad for anywhere near that money that gives the same performance.

Make your consumables as cheap as possible. Sure you might go through a set of OEM discs twice as often as I'll go through mine, but 2 sets of OEM discs are still cheaper than 1 set of my rotors. You can also sell the calipers much easier than a set of 2nd hand 2 piece discs further down the line.

Lastly, you want race car brakes, there's no other way to get them than to fork out the race car money.

Oh, and 7kg of unsprung weight is a lot - that's why Cupras/S3s have alu wishbones to ty and counter the brakes.

[Nikiforos]

Thanks.Very valuable advices