283mm brake conversion guide (with pics)

283mm brake conversion guide (with pics)

Author
Discussion

Bassfiend229hp

5,530 posts

250 months

Wednesday 13th February 2013
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Are the disc offsets (hub to rotor distance) different between the 4x4 discs and the 2wd discs?

Russell Mc

573 posts

151 months

Wednesday 13th February 2013
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Yes I believe you need more spacers to line the calipers up correctly with the 4x4 discs

Bassfiend229hp

5,530 posts

250 months

Wednesday 13th February 2013
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Mine have a 10mm spacer between teh hub and the caliper...

Russell Mc

573 posts

151 months

Wednesday 13th February 2013
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With my 283mm discs I believe I only needed a washer as a spacer

Bassfiend229hp

5,530 posts

250 months

Wednesday 13th February 2013
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Russell Mc said:
With my 283mm discs I believe I only needed a washer as a spacer
I may try a set of 283mm discs then... biggrin

SILICONEKID350HP

14,997 posts

231 months

Wednesday 13th February 2013
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Bassfiend229hp said:
Russell Mc said:
With my 283mm discs I believe I only needed a washer as a spacer
I may try a set of 283mm discs then... biggrin
You will eather need to machine the discs down a few mm or file the calipers ,thats why my kit came with 278 discs.

When you get them fitted the difference is unbelievable ,when i upgraded the rears from 252 solids it totaly transformed the braking .


Edited by SILICONEKID350HP on Wednesday 13th February 23:47

Marty V8

578 posts

186 months

Thursday 14th February 2013
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You dont need to machine 283mm discs down, all you need to do is to file some metal off the caliper bracket that holds the caliper to the hub. The Escort Cossie calipers take a 278mm disc and you need to shave off enough metal to allow it to take a 283mm disc. However we are only talking about taking off 5mm total, which is 2.5mm to each side of the caliper carrier.

Dont buy 278mm Escort cossie discs either as the offset is all wrong. You need front discs from a RWD Sierra Cosworth discs and pads.

Ive done this conversion twice - once going from a 240mm disc (Cobra Kit Car) and the other time going from a 260mm disc (Griff 500 brakes). In both cases all Ive needed to do to centralise the caliper bracket was to put a 1mm washer between the hub and the bracket.

Hope this helps.

penno

241 posts

230 months

Thursday 14th February 2013
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Hi, planning on doing this conversion have the calipers. Disks i can get but what pads are people using the mondeo st200 ones or do the sierra cosworth fit. The reason i ask there is a cosworth 500 kit containing both pads and disks which seem good value

SILICONEKID350HP

14,997 posts

231 months

Thursday 14th February 2013
quotequote all
penno said:
Hi, planning on doing this conversion have the calipers. Disks i can get but what pads are people using the mondeo st200 ones or do the sierra cosworth fit. The reason i ask there is a cosworth 500 kit containing both pads and disks which seem good value
I have THE EBC Yellow stuff part numbers you could cross reference ..

These fit my 887 887 calipers

DP4956R

The later rear setup DP4617R with 272 vented.

Yellow stuff pads are great for fast road use and the odd trackday.

So can someone confirm from what car the rear later calipers and discs come from ..

If anyone upgades from the resr solid 252`s the S TVR owners will buy the hubs ,calipers and discs because it an easy upgrade for them to go from drums to discs.



Edited by SILICONEKID350HP on Thursday 14th February 19:20

vaurien

339 posts

149 months

Thursday 14th February 2013
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Hello from far !

I remember 3-4 months ago here was one topic with the same target that someone made a conversion by one chimi with a 4 piston caliper and 283mm disc of the Sierra Cosworth RS500. Somebody remember over this topic it was with pictures?!

It is a nice project.


Regards


Gregor

SILICONEKID350HP

14,997 posts

231 months

Thursday 14th February 2013
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If you know exactly know what you need there are some absolute bargain big brake upgrades on fleabay under Cosworth ,Ford ,Sierra etc

vaurien

339 posts

149 months

Thursday 14th February 2013
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The way and how he maded was interesting. I dont looking for cheap parts.
The perfect way how to realize it would be nice to know.

But thanks

Gregor

sapper

1,133 posts

205 months

Wednesday 28th August 2013
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Looking to get
disks GD483 and
Greenstuff pads DP2956

TVRBessy

35 posts

120 months

Sunday 18th May 2014
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I just had the 5 stud hub conversion done on my Chim and i'm very pleased with my Spiders.

The problem is one of my front discs is warped (juddering under breaking) and I wasn't going to do the Tuscan/ AP upgrade until winter.

Does anyone know of any replacement front discs (240mm @ 5x114.3) preferably drilled and grooved?

I've found a link that shows other cars with the Tuscan PCD (Honda Accord, Civic, Mazda 3, 200SX, etc) and there are 240mm discs listed for those cars on eBay, though i'm assuming there are other dimensions to consider, such as profile and bore diameter etc?

thx


CHIMV8

2,768 posts

221 months

Monday 19th May 2014
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Can you just upgrade the fronts and leave the standard rears?

sapper

1,133 posts

205 months

Monday 19th May 2014
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I did, but my rears were 260mm, if they were smaller id think about increasing their size so its no so much of a bias to the front

carsy

3,018 posts

165 months

Monday 19th May 2014
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I have the Cosworth 283mm up front with standard solid rears. Feels bob on balance wise.

CHIMV8

2,768 posts

221 months

Wednesday 20th August 2014
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Bassfiend229hp said:
Russell Mc said:
With my 283mm discs I believe I only needed a washer as a spacer
I may try a set of 283mm discs then... biggrin
Phil,how you finding the upgrade.

Still havnt fitted the ones you sent a year or 2 ago! oops!

Whats the part number for the discs?

CHIMV8

2,768 posts

221 months

Thursday 21st August 2014
quotequote all
CHIMV8 said:
Bassfiend229hp said:
Russell Mc said:
With my 283mm discs I believe I only needed a washer as a spacer
I may try a set of 283mm discs then... biggrin
Phil,how you finding the upgrade.

Still havnt fitted the ones you sent a year or 2 ago! oops!

Whats the part number for the discs?
Phhhhiiiiiilllllllllll!!!!!!

doggydoggen

5 posts

23 months

Tuesday 1st November 2022
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This is a old post but bump it up..=)
i have a Ac cobra replica with Ford sierra uprights.
i have sierra brakes with solid 240mm in front and drumbrakes in rear, now i want to fit the 283mm disc in front and later upgrade the rear to disc also.
my question is, can i use the existing sierra calibers and only buy diffrent carriers to suit the 283mm?.
any tip to solve this would be great.
i live in Sweden so my english is so so..=)