Brake discs for AP calipers under 15" wheels

[malncol]

can anyone tell me the dimenions of standard front and rear disc on a s2
thanks
mal

[Rusty]

276x25mm front
245x10mm rear

HTH

[malncol]

what about the height of the disc from where the outer pad runs to where the wheel touches?? ive found some merc discs but no sure if the height will work??
trying to sort something for my s1e2 rep with s2 running gear on its way but as we didnt get the s2 here in OZ the info is a bit hard to find
mal

[Rusty]

Search for the brembo online catalogue, all the details like that are in there for most makes and models of cars. It's very useful.

[malncol]

ok had a look at brembo stuff but still cant see the s2 heights anywhere, i may have missed it but
mal

[Rusty]

Can't have looked very hard...

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Search.aspx

Enter Audi - Coupe 89 or 80 avant..

Find 2.2 turbo...

not only is it in the spec, there's a very detailed drawing of them on there too...

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail.aspx?ApplicationIDMaster=4978

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail_Image.aspx?Code=a83e7bd9-69f9-4d23-ab18-13d92a1b3e3b

Rear

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail.aspx?ApplicationIDMaster=4979

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail_Image.aspx?Code=2c40161e-0b32-4c5d-a725-1eb11eafee90

HTH

[Rusty]

What calipers are you looking to run? There are lots of brackets available for Porsche monoblock calipers off 996 (425/6) & GT3 (429/430) using discs that will fit under 16" or 17" wheels. For 18" wheels, you could look at the RS4/6 brake upgrade using 360mm discs. Perhaps not the lightest solution in the world but then if you're looking at cast discs anyway, then they're along the same lines. HTH

[malncol]

iam will be using AP CP6720 front and CP6760 rear, but i need a disc thats about 300 in dia as it all needs to go under 15" wheels for gravel rallying. disc would also need to be cheap as they will be replaced often. found a merc disc 300x28 x46h with 67 hole and 5x112 so its close, not sure if i can get slotted etc yet, will probably have to make brakets unless you know of a other option
and yes i do struggle with computers ,dont use them much as i drive earthmoving/big boys toys all day
mal

[Mikes2]

sport quattro discs are 295x28mm and are grooved from the factory

[malncol]

hi mike
i thought they where 280x22 ,either way they would be impossible to get here in OZ, i could have them bought into OZ but there must be something more available. the merc disc are off a clk320/350 or c230/240 etc , trying to get time to go to local brake shop and see
thanks
mal

[Rusty]

This one - 300x28

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail.aspx?ApplicationIDMaster=13531

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail_Image.aspx?Code=071f2213-9ceb-418d-9916-c69a26706173

[Rusty]

These are the 314mm A8 discs that are the smallest size used with the 996 monoblocks, they are over 10mm higher hat height than the Mercedes discs, so you it's doubtful that you would be able to modify off the shelf brackets for your setup. The 314s fit under 16s, just, so are not of use to you but are useful as a reference for a disc that can be used with a multi-pot caliper with a 37 offset wheel.

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail.aspx?ApplicationIDMaster=4827

http://www.bremboaftermarket.com/En/Car_Disc_Catalogue/Catalogue_Detail_Image.aspx?Code=10786cb8-b6a5-4815-b3f5-79bd934a419f

For those Merc 300x28 discs, you will have to get custom brackets made up for your setup and then find out what offset wheel you need, as the calipers will be more outboard due to the lower hat height. You'll also have to have the inner diameter take out and the holes re-drilled for the M14 bolts (Mercedes use M12) for it to fit the S2 hub.

[malncol]

yep thats them, if i machine the hubs down to suit the center bore and use a spacer between the wheel and the disc all i would have to do is redrill to m14 it should work ??? brackets wont be that hard to make
have not decided on a wheel yet ??
i need to start a project thread / when i work out how to do the photos
mal

[Rusty]

Yeah, that would work. Need to see if that setup would work with a well built 15" rally wheel too, in case it's all a bit tight...

[Rusty]

Thread title changed to something a little more descriptive.