283mm brake conversion guide (with pics)

[taylormj4]

Quinny said:

There are 2 different height discs, and the spacers take up the difference depending on which discs are being used...

You're right in that the slides will compensate for a small amount of difference..

But personally I'd prefer the caliper to be central to the disc

Hi there,
I have EBC D150s, fitted which are the 53mm height discs. The disc is sitting too close to the outer half of the caliper. The alternative discs appear to be 58mm, so fitting those would make the problem worse and likely foul the caliper. So I think I have the right discs. What are the spacers. Don't remember seeing any of those when I removed the disc. Are they shims of different thicknesses to get the disc central in the caliper ?

Thanks, Matt

[SILICONE KID]

I have the Cosworth front and rear upgrade ,Can you explain why my front discs are 278mm and not 283 mm.

[slideways]

SILICONE KID said:

I have the Cosworth front and rear upgrade ,Can you explain why my front discs are 278mm and not 283 mm.

Surly you already know the answer to that Daz?

[spend]

Big Ruler for buying & a small one for selling?

[roysum]

SILICONE KID said:

I have the Cosworth front and rear upgrade ,Can you explain why my front discs are 278mm and not 283 mm.

That 5mm will make a huge difference to braking performance !

[Simon says]

roysum said:

SILICONE KID said:

I have the Cosworth front and rear upgrade ,Can you explain why my front discs are 278mm and not 283 mm.

That 5mm will make a huge difference to braking performance !

[roysum]

Simon says said:

roysum said:

SILICONE KID said:

I have the Cosworth front and rear upgrade ,Can you explain why my front discs are 278mm and not 283 mm.

That 5mm will make a huge difference to braking performance !

What??

Edited by roysum on Wednesday 14th July 23:06

[buitonni]

Hi everybody,

I would like to upgrade the brakes on my Chim' 400 HC (1996)


I saw that the good setup is to use seirra cosworth discs and granada calipers.


could you give all the exact parts number that I need ?

the conversion is easy ? (plug and play...)


thank you and sorry for my poor english accent,
Simon, a new happy french owner !

[More Steam]

All the info is on the first page including where to buy the discs and part numbers (see AC Bilco's posts). The important thing is to get the calipers with the 887 and 888 cast on them. These are getting harder to find, but they do appear on ebay from time to time. I think it took me a couple of months of searching to finally get a pair.

They look very much like these, but you'd have to check with the seller that they have the all important markings. http://www.ebay.co.uk/itm/escoer-sierra-cosworth-b...

The job is very easy. IIRC it took about 2 hours for the first one and less than an hour for the second one (once I knew what I was doing).

Edited by More Steam on Sunday 11th September 19:54

[buitonni]

thank you


and what are the best brake pads to complete the setup ? EBC, Mintek, original parts... ?

[SILICONEKID340HP]

I use EBC yellow stuff ,no warm up time and good for te odd track day and fast road use..

Hansal supplies a kit eather 278 or 283mm genuine OE discs

Spaces to suit the discs

887 888 calipers and carriers (mine were new)

Decent road use pads and any bolts etc .

There a very good upgrade but prity heavy..

Edited by SILICONEKID340HP on Sunday 11th September 22:08

[Alexdaredevilz]

I got a set of callipers with a new seal kit and carriers ready to be installed for sale

[Peter-S2]

Alex if you still have the calipers Im intereted, let me know how much you want

[theironduke]

I asked a chap on ebay who was selling the V6 calipers i thought were the ones to supply the numbers (887 and 888)

I was helpful in replying back with...

Hi,
Sorry for teh delay in getting back to you but we have got quite a lot of granada calipers around and we have been busy cleaning them to find the casting numbers. Unfortunately we do not have the numbers you need - the nearest is 869 and 870. Out of interest can you tell me the significance of the casting numbers as there appear to be two different series, some with three numbers like these and some with two (typically 38 for example). Externally they do look identical.

Alas not the ones i want but i was wondering if any others will do the job?

[Fat Boy Chim]

Hi, i know this thread is now quite old, but have accuired the calipers, just would like confirmation these are correct disc's?

http://www.ebay.co.uk/itm/300304597273?ssPageName=...

Regards,

Steve

[carsy]

No they are not. You need discs from the 2 wheel / rear wheel drive Cosworth.

These;

http://www.ebay.co.uk/itm/Sierra-RS-Cosworth-2WD-8...

Edited by carsy on Wednesday 13th February 16:30

[SILICONEKID350HP]

When i did mine i got rid of the 253mm solids and fitted 273mm vented rears and new calipers.. Ok they are a bit heavy but hell of an upgrade .. currently on 278mm with 888 887`s and 273 rear vented ,picked the rear calipers up new fot peanuts .

[Marty V8]

carsy said:

No they are not. You need discs from the 2 wheel / rear wheel drive Cosworth.

These;

http://www.ebay.co.uk/itm/Sierra-RS-Cosworth-2WD-8...

Edited by carsy on Wednesday 13th February 16:30

+1

283mm front discs from a rear wheel drive Sierra Cosworth

[SILICONEKID350HP]

Marty V8 said:

carsy said:

No they are not. You need discs from the 2 wheel / rear wheel drive Cosworth.

These;

http://www.ebay.co.uk/itm/Sierra-RS-Cosworth-2WD-8...

Edited by carsy on Wednesday 13th February 16:30

+1

283mm front discs from a rear wheel drive Sierra Cosworth

Ok Marty what car are the 278mm front vented discs from ?and the 272`s for the rear.

[Russell Mc]

278mm are from 4x4 Cosworths