V8S Brake Parts
Discussion
While the car was in for it's MOT today I noticed that the brake discs looked a bit rusty all round so I would like to treat her to 4 new discs and a new set of pads.
The questions now are :-
What car are the V8 discs off, any sizes/offsets or part numbers?
Has anyone bought any discs recently from a supplier that they'd recommend?
Is it worthwhile going for drilled and/or grooved discs?
What pads are good for a light upgrade with normal road use?
Any help gratefully received.
Bob
The questions now are :-
What car are the V8 discs off, any sizes/offsets or part numbers?
Has anyone bought any discs recently from a supplier that they'd recommend?
Is it worthwhile going for drilled and/or grooved discs?
What pads are good for a light upgrade with normal road use?
Any help gratefully received.
Bob
See if these are still avaialble
http://www.pistonheads.com/sales/3718413.htm
Disc's and a cheap, but very effective, brake upgrade into the bargain.
http://www.pistonheads.com/sales/3718413.htm
Disc's and a cheap, but very effective, brake upgrade into the bargain.
Barkychoc said:
Ford Sierra discs.
Click on the 'this forum ' link above then select show faq's you should find what you need in there.
No joy there, a couple of posts on the brake flexi hose sets but nothing on the discs and pads for a V8S.Click on the 'this forum ' link above then select show faq's you should find what you need in there.
Alternative parts list shows front discs & pads but rear drums and shoes.
Are the brakes common with the early Grif's?
Are the rear discs off Granada or a Cosworth Sierra?
Bob
Bobhon said:
Are the rear discs off Granada or a Cosworth Sierra ?
Hi Bob,two wheel drive Sierra Cozzy or XR4i I think, 4wd Cozzy is vented disc.Have a rummage around www.brakesinternational.co.uk ,search various Sierra options they give all the dimensions, and prices are reasonable
(don't list a lot actually under TVR)
Just my opinion but I don't think vented and/or drilled are necessary for road use, look pretty but wouldn't show through your wheels?
Everyone's got their preferences on pads,Green stuff worked ok on my Chim (took a couple of stops to warm up) but happy with "standard" pads on my other cars, some performance pads can create a lot of dust, Taimar had 4 pots and fancy pads when I bought it (now back to standard TR6), once round the block and wheels were filthy!
Look at this if you want to upgrade
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
If you don't the discs are standard sierra but not early 1.3/1.6 models as they are not vented.
The standard disc is 240mm diameter vented ford sierra.
In summary
Early 1.3/1.6 Sierra - 240mm non vented WRONG DISC
Later 1.6/above Sierra - 240mm vented this is standard fit on an S.
Later Sierra with ABS / XR4i - 260mm diameter disc which fits with appropriate calipers, carrier brackets and pads. This is also as fitted to 5 litre griffs & chims.
There is a bigger option still which I have not been involved with - it costs more and you have to drill the holes out on the uprights and use packing washers.
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
If you don't the discs are standard sierra but not early 1.3/1.6 models as they are not vented.
The standard disc is 240mm diameter vented ford sierra.
In summary
Early 1.3/1.6 Sierra - 240mm non vented WRONG DISC
Later 1.6/above Sierra - 240mm vented this is standard fit on an S.
Later Sierra with ABS / XR4i - 260mm diameter disc which fits with appropriate calipers, carrier brackets and pads. This is also as fitted to 5 litre griffs & chims.
There is a bigger option still which I have not been involved with - it costs more and you have to drill the holes out on the uprights and use packing washers.
Don't get drilled discs.
Vented are fine but they aren't really vents as brake pads these days have no problems with out gassing which they were originally designed to help with. Vents are now used to gently scrape the pad surface which reduces glazing when your really thrashing them and gets rid of any rubbish that gets stuck between the pad and disc. Or more often to just look good.
If you get drilled discs they are liable to crack when they get really hot. The expansion really stresses the disc which isn't a problem unless someones gone and drilled a hole in the middle of it which concentrates the stress round the edge and can crack it.
I personally bought some Brembo discs from next day brakes I think the top ones are the discs you need but don't quote me on it. They are the 240mm discs and I've just bought a set for my S2. £30 delivered for the pair is pretty good.
Vented are fine but they aren't really vents as brake pads these days have no problems with out gassing which they were originally designed to help with. Vents are now used to gently scrape the pad surface which reduces glazing when your really thrashing them and gets rid of any rubbish that gets stuck between the pad and disc. Or more often to just look good.
If you get drilled discs they are liable to crack when they get really hot. The expansion really stresses the disc which isn't a problem unless someones gone and drilled a hole in the middle of it which concentrates the stress round the edge and can crack it.
I personally bought some Brembo discs from next day brakes I think the top ones are the discs you need but don't quote me on it. They are the 240mm discs and I've just bought a set for my S2. £30 delivered for the pair is pretty good.
Plain discs give the maximum braking contact area and minimum noise and pad wear so are the best to go for unless you are trying to cure an overheating problem. If you aren't suffering from brake fade, stick with plain discs.
If you're suffering from brake fade on the road, there's probably something wrong with your brakes (i.e. worn out, sticking, wrong pad/fluid type, not bedded in properly etc) and it would be better to make sure everything is working properly before you start thinking about upgrades.
Whatever else you do, remember that drilled discs are the devil's work and should be avoided at all costs. Grooved are OK (although it doesn't need many grooves - 6..8 is fine you don't need 20 or 40 grooves) but remember you're paying a price in terms of noise, wear and reduced pad contact area so this should be way down on the list of possible cures for overheating brakes.
If you're suffering from brake fade on the road, there's probably something wrong with your brakes (i.e. worn out, sticking, wrong pad/fluid type, not bedded in properly etc) and it would be better to make sure everything is working properly before you start thinking about upgrades.
Whatever else you do, remember that drilled discs are the devil's work and should be avoided at all costs. Grooved are OK (although it doesn't need many grooves - 6..8 is fine you don't need 20 or 40 grooves) but remember you're paying a price in terms of noise, wear and reduced pad contact area so this should be way down on the list of possible cures for overheating brakes.
mohitos said:
Sorry to revive such an old thread. I am just reviewing the brakes fitted to my car during it's rebuild.
It looks like the front discs are vented and the rears are solid. Does that sound correct on a V8S ?
TIA!
Yup, that sounds spot on. If I remember correctly, which I definitely could be, the rears have a larger diameter too! It looks like the front discs are vented and the rears are solid. Does that sound correct on a V8S ?
TIA!
Plenty of options to upgrade the fronts if required. Can be done quite cheaply too if your lucky in finding parts.
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