Front Brake Upgrade 278mm Discs - Ford Callipers
Discussion
887 & 888 callipers have now become a rare and expensive option for a simple bolt on upgrade.
Well, I took a punt on a set of mk6 Fiesta ST front callipers, carriers and discs.
This kit bolts straight on to the front of an S. 11mm spacer required if you use the 48mm high discs. 1mm washer if you use 58mm discs.
Carriers bolt on with M10 bolts so no drilling the upright.
Brake pipe is long enough to stretch to the front crossmember where the pipe union is.
ST disc, although 278mm in diameter, is slightly off in the height/offset. They are four stud with the same pcd but you'd need to add an extra 1 or 2 washers to space the calliper out. They are heavier than the Cougar discs I have with the 888 set up. By 250g! So maybe stick with the Cougar ones.
If you're going to fit 58mm high discs then you'll need to grind a bit off edge of the carrier next to the top fixing bolt. There's loads of meat here so integrity should remain uneffected.
You can pick up a set of s/h callipers , carriers and pads off evilbay for around £70.
I shall add part numbers and model names for all the bits once I have fully collated them.
Well, I took a punt on a set of mk6 Fiesta ST front callipers, carriers and discs.
This kit bolts straight on to the front of an S. 11mm spacer required if you use the 48mm high discs. 1mm washer if you use 58mm discs.
Carriers bolt on with M10 bolts so no drilling the upright.
Brake pipe is long enough to stretch to the front crossmember where the pipe union is.
ST disc, although 278mm in diameter, is slightly off in the height/offset. They are four stud with the same pcd but you'd need to add an extra 1 or 2 washers to space the calliper out. They are heavier than the Cougar discs I have with the 888 set up. By 250g! So maybe stick with the Cougar ones.
If you're going to fit 58mm high discs then you'll need to grind a bit off edge of the carrier next to the top fixing bolt. There's loads of meat here so integrity should remain uneffected.
You can pick up a set of s/h callipers , carriers and pads off evilbay for around £70.
I shall add part numbers and model names for all the bits once I have fully collated them.
magpies said:
and in 'fairness' - or safety as some say
4 individual bushes is nowhere near as good as a solid ring with 4 holes in it - think wheel spacers
there is a great deal of force in operating brakes and slowing a car.
The words 'fairness' and 'safety' are not connected / unrelated in the context of my post.4 individual bushes is nowhere near as good as a solid ring with 4 holes in it - think wheel spacers
there is a great deal of force in operating brakes and slowing a car.
I've also addressed the point you've raised twice before earlier in the thread. As a third option, a plate spacer could be used in lieu of bush spacers.
Top Gear TVR said:
Sorry my calipers are the earlier ones, may be different
Steve, loosely connected to the purpose of this thread.Whilst I was trying to establish what pads I needed for the 887/888 callipers I discovered that the 278mm and 283mm discs are available in both the 48mm and 58mm heights which negates the need for spacers (in any form) or turning down of discs.
Of course, using 58mm high discs moves the disc closer to the steering ball joint which some may not wish to do.
As per my first post, I'll do a complete list of relevant bits etc... The disc information will be relevant to both the 887/888 set up and the 557/558 set up I've suggested on this thread.
Edited by mk1fan on Monday 29th June 18:55
I can see what you mean about the spacers. In simplistic terms its like trying to push over a cotton bobbin and a margarine tube. Having a one peice spacer would be ideal I agree.
As for bolts. Qbee was reiterating the need for proper hi-ten bolts 10.9 or above as someone had not used them on his car. I think this is relevant to standard or modified brakes.
As I have repeatedly said there is the choice to fit either 58 or 48mm high discs. 48mm being the height of the standard set up. If these are fitted then the callipers can bolt straight to the uprights. Perhaps a hi-ten washer is required.
Fitting 58mm discs moves the disc out / away from the centre line of the car.
As for bolts. Qbee was reiterating the need for proper hi-ten bolts 10.9 or above as someone had not used them on his car. I think this is relevant to standard or modified brakes.
As I have repeatedly said there is the choice to fit either 58 or 48mm high discs. 48mm being the height of the standard set up. If these are fitted then the callipers can bolt straight to the uprights. Perhaps a hi-ten washer is required.
Fitting 58mm discs moves the disc out / away from the centre line of the car.
Sorry got my dims the wrong way round. Still abit out of whack from my 'holiday'.
Ford produced the 278 and 283 diameter discs with an overall 'height' of 48mm and 58mm. That is, if you lay the discs on a flat surface they would measure 48 and 58mm high.
The standard S set up uses discs 58mm high. So using 58mm high discs should mean the new callipers bolt directly to the upright. Washers maybe required to take up some tollerance issues - it doesn't take much to build up 1mm.
When TGTVR did his upgrade he had issues sourcing the 273mm 58mm and 273mm 48mm high discs so turned down a set of 283mm to avoid modding the carriers.
To use the 48mm high discs a spacer is required between the carrier and the upright.
Ford produced the 278 and 283 diameter discs with an overall 'height' of 48mm and 58mm. That is, if you lay the discs on a flat surface they would measure 48 and 58mm high.
The standard S set up uses discs 58mm high. So using 58mm high discs should mean the new callipers bolt directly to the upright. Washers maybe required to take up some tollerance issues - it doesn't take much to build up 1mm.
When TGTVR did his upgrade he had issues sourcing the 273mm 58mm and 273mm 48mm high discs so turned down a set of 283mm to avoid modding the carriers.
To use the 48mm high discs a spacer is required between the carrier and the upright.
Check out the brake wiki at the top of the forum page.
Ideally, a 55mm high 278mm disc is what is required. Unfortunately, the Granda Scorpio that had that size is 5-stud.
Alternatively, you could get some 283mm cossie discs turned down to 278mm as TGTVR did. Or get a spacer made up to move the calliper out to meet a 45mm or 48mm disc.
You could always swap over to 5-stud using the Granada hubs.
Ideally, a 55mm high 278mm disc is what is required. Unfortunately, the Granda Scorpio that had that size is 5-stud.
Alternatively, you could get some 283mm cossie discs turned down to 278mm as TGTVR did. Or get a spacer made up to move the calliper out to meet a 45mm or 48mm disc.
You could always swap over to 5-stud using the Granada hubs.
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