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sierra Uprights advice
big-vee-twin - 22/4/13 at 07:15 AM

Due to being supplied the wrong front wishebones and thanks to assistance from British Trident the Cortina uprights I have need changing to Sierra uprights.

So my question is which ones' does it matter and which disc fitment do we use.

Unfortunately all my knowledge is based around Cortina.

Also I will have the Cortina uprights and new discs for sale afterwards if anybody needs some

Many thanks in advance

[Edited on 22/4/13 by big-vee-twin]

fesycresy - 22/4/13 at 07:32 AM

Any Sierra, except the 4x4.

I'd use 260mm solids as opposed to vented.

I found 260mm vented took too long to warm up on the road.

whitestu - 22/4/13 at 09:07 AM

quote:

Any Sierra, except the 4x4.

I'd use 260mm solids as opposed to vented.

I found 260mm vented took too long to warm up on the road.


Aren't the vented ones 240mm?

I'm pretty sure mine are. They warm up fine but solid disks are lighter so would be the ones to choose if you are having to buy calipers as well.

fesycresy - 22/4/13 at 10:08 AM

You can get 240mm and 260mm.

I bought mine with Wilwoods (from MNR I think) and I spec'd them thinking bigger would be better.

mcerd1 - 22/4/13 at 10:08 AM

^^ as above any normal sierra - but not 4x4 or cossie (they can be made to fit, but why make things more complicated.... )
the normal sierra hubs are all basically the same, but can have a range of brake disc/calipers fitted

the std. brake disc sizes on the sierra are: (each disc size has a caliper and mounting to match)

240mm solid - 1.3 and 1.6 cars (not very common, but quite light)

240mm vented - 1.8 and 2.0 cars without ABS

260mm vented - XR's, V6's and cars with ABS



fesycresy - are you sure you've got 260mm solid discs ?
(if they are where did you get them ? )

[Edited on 22/4/2013 by mcerd1]

fesycresy - 22/4/13 at 10:41 AM

No, I had 260mm vented.

Try Rally Design or MNR for 260mm solid? May only be able to get 240mm solids?



[Edited on 22/4/13 by fesycresy]

deezee - 22/4/13 at 04:24 PM

quote:
Originally posted by fesycresy
I found 260mm vented took too long to warm up on the road.



That will be the wrong pad your using, rather than the fault of the disc. You want a disc to shed the heat generated from braking and you want the pad to be of a suitable compound for the amount of braking you do. Sounds more like you went for track or fast road pads and couldn't get them warmed up.