Cosworth brakes

[s3 bob]

I've been offered a set of disks & 4 pot calipers from a 2wd sierra cosworth which 'should' be a straight swap for the standard sierra front brakes currently fitted (so I'm told). Has anyone been down this route or know any reason why it shouldn't work? Is it possible that they might be too powerful and upset the balance of the car? ( at least it might provide an excuse for ending up facing the wrong way on track days )

[s3 bob]

Thanks for the tips Peter. Do you know what the front to rear balance should be? I know it'll change during use as the brakes get hot, but as a starting point I thought I'd ask my local MOT centre to test the brakes and use their figures as an indication. I've seen the previous postings about upgrading the rear to disks, will standard sierra do or is it worth going bigger at the back as well?

[s3 bob]

Thanks Lee, I'll be interested to hear of any problems you encounter. The cosworth front brake conversion has hit a major setback. Apparently, you need to change the front hub carrier as well. Simple enough on a sierra upgrade, but as the S3 uses a TVR hub carrier its a bit of a no go. The only solution being to have a bracket specially made to enable the new calipers to fit the existing hub carrier. From their website, I think thats how Tower View do their big disk upgrade. I suppose I could just try to source cross drilled or grooved standard sierra disks and fit better pads. Anybody recommend a particular brand? I've heard people speaking highly of the 'EBC greenstuff' range but I don't know if thats just because they're trendy.

quote:I am looking at fitting the rear disc set-up in the next few weeks so I will keep you posted.I plan to use a standard rear set-up from a scrap Sierra (only found one out of about 20 with rear discs though!) so I am hoping that it shouldn't upset the balance too much though?? Cheers Lee (S2)

[s3 bob]

Don't know for certain, just using info from Steve Heath's book. Haven't had a look yet to see if they've got any identifying stamps or marks on them. Seems like I need to read up on this braking lark, anyone recommend a good book or website?

quote:TVR hub carrier? You sure? I thought it was a standard Sierra upright, with a TVR-special adapter at the top taking a Saab top balljoint. Never had to change the upright myself so I can't be sure, but I thought it was a standard Ford. The bearings, calipers and so on certainly are.