Technical Rear Disc Brakes....

Currently reading:
Technical Rear Disc Brakes....

Joined
Feb 23, 2004
Messages
797
Points
128
Location
Loughborough UNI / Banste
Right - this is mostly directed at "rallycinq" because I think he has rear discs???

Anyways, after my recent lack of stopping and also general distrust of the stopping power of a Cinq I'm thinking about doing a rear disk conversion - I know it's not easy but am willing to give it a go.

Would it be a case of getting a set of Punto GT calipers all round and adapting them to fit? (I will have 14"s) ... this would then enable me to get Punto GT disks/pads which must surley have a wider range than a Cinq?

Are there any other options that would be do-able?
Also what problems does it cause handbrake-wise? (and if I did it would it sort out the fact that Cinq handbrakes never f-ing work?)

Also - (rather extreme question...) any possibilities of putting an ABS system in a Cinq - or would we be talking silly money and really hard to do???

Cheers all,
Matt

"No it's not a custard"
------------------------
[email protected]
------------------------
Van Aaken High Boost Turbo engine for sale - "0-60 in the low 7's and enough top end to get you very seriously banned!!"
 
do you have GT brakes on the front? most of the braking is done at the front i wouldnt have thought it worth it fitting rear discs


Cinq Sporting - and yes, its broom yellow!
 
Don't go too mental with the rear brakes or you'll spin it everytime.

Rallycinq is running Uno brakes I think.

Eh, it would be a different set up if you had disks at the rear cos the handbrake would then be connected to little shoes inside the hub. If you can find a sympathetic MOT station then plump for the hydraulic handbrake and never worry about it again and also become the only Cinq owner who can do more than 3 handbrake turns in a row!

The ABS would be a mega complicated retro fit affair with a multitude of new wiring and subsequent problems with ECU's and whatever that thing is called that all the brake pipes go to.

Why do you have a distrust in the stopping power? I got two new standard calipers and Tarox drilled and grooved discs and pads from demon tweeks, fully bled with new fluid and careful bedding in and my head nearly went thorugh the windscreen first time i braked hard, DJ Bucho's has to be the best in my opinion tho'.

Liam

**** happens!
 
I have just never liked the brakes on a Cento - having sorta driven a few other cars around with decent brakes it just showed me how crap they really were.
Also stuffed my car into the back of a mate's new Clio a few weeks ago (he has disks all round plus ABS) *no lectures about being too close etc please!-you weren't there/didn't see it* - ABS/better brakes WOULD, in my opinion, have prevented it.

OK so ABS is out - thort it would be worth asking anyway.
Yes would like handbrake to work and I realise it would need to be changed for a hydraulic jobbie.
GT disks at the front is what I'm going for if I don't fit the new Red Dot setup I've just got hold of. - also going for 195/40/14 when tyres next need changing.
And also I realise that rear brakes would not make that much difference but "evey little helps!"
Thanks for the replies,
Matt

"No it's not a custard"
------------------------
[email protected]
------------------------
Van Aaken High Boost Turbo engine for sale - "0-60 in the low 7's and enough top end to get you very seriously banned!!"
 
Originally posted by bad_boy_racer

And also I realise that rear brakes would not make that much difference but "evey little helps!"
Thanks for the replies,
Matt

Matt, I put new drums and shoes on the silver one, brakes are a hell of a lot better now. I got a feeling the rear drums wear out as much as front discs but with more of an effect - if you imagine when you put new shoes in woth old drums they will only touch in a couple of places.

Drums were £30 the pair.

Pete.

Links: 1242cc cinq, turbo cinq, Cinqs&Seis Yahoo group, Clubcento
 
Sorry for joining this one late, been at work.

Rear discs do not require 14 inch wheels, they use standard cinq front discs which are a straight bolt on to the existing hubs. There are two tricky bits and an iffy bit.

Tricky bit number 1. You will need a caliper mounting bracket fabricated.

Number 2. Handbrake cable needs careful routing and an extension on the bottom of the lever to move the wheel back a couple of inches.

Iffy bit. Calipers use a lot more fluid than a cylinder. If you are going to use the standard master cylinder the pedal goes long.

Punto GT fronts are a straight bolt on, for which you do need 14s. Uno Turbos fit under 13s, but need the discs spaced.

Cheers

D

Grumpy old git going fast downhill rather than downhill fast!!
 
Originally posted by bloomfieldliam
Maybe not too close but how does too fast sound?

Liam

**** happens!

You're a clever one aren't you... I did ask for no one to comment but still you feel the need to. Why? It has nowt to do with you. You asked me a resonable question - why do I dislike the brakes - I gave you a resonable answer, could it not just be left at that? Seeing as you have mentioned it tho I would like to point out that at the time I was UNDER the speed limit and quite clearly going no faster than he was as I was following him. It was an accident - had I been driving too fast I would have got done for dangerous driving... which I haven't been. My only point was that his newer, better equipped car stopped and my Cento did not - hence I would like it to stop quicker when faced with the need to do an emergency stop. That was all.

"No it's not a custard"
------------------------
[email protected]
------------------------
Van Aaken High Boost Turbo engine for sale - "0-60 in the low 7's and enough top end to get you very seriously banned!!"
 
Thanks for that Pete - I've got some new shoes around - but may aswell do the drums aswell if I change them. Also I have heard that it is possible to buy "uprated" (for want of a better term) drums? Do you know if this is true and have you heard if they are any good/worth it?
Rallycinq - thanks for the reply - couple of questions though:
Can the bracket be fabricated at home or is it really a custom job?
What do you mean by moving the wheel back a couple of inches? What wheel? (we're not talking the actual wheel with tyre are we?)
Also what do you mean by the pedal goes long when using the standard master cylinder - is it possible to change that?
Sorry those que's may sound a little daft but I'm still trying to learn brakes - lol
Cheers again,
Matt

PS: Does GT brakes on the front and these supposed "uprated" drums on the back sound like a good combo? And also on 195/40/14's when the tyres need changing next? - thanks!

"No it's not a custard"
------------------------
[email protected]
------------------------
Van Aaken High Boost Turbo engine for sale - "0-60 in the low 7's and enough top end to get you very seriously banned!!"
 
Originally posted by bad_boy_racer
Originally posted by bloomfieldliam
Maybe not too close but how does too fast sound?

Liam

**** happens!

You're a clever one aren't you... I did ask for no one to comment but still you feel the need to. Why? It has nowt to do with you. You asked me a resonable question - why do I dislike the brakes - I gave you a resonable answer, could it not just be left at that? Seeing as you have mentioned it tho I would like to point out that at the time I was UNDER the speed limit and quite clearly going no faster than he was as I was following him. It was an accident - had I been driving too fast I would have got done for dangerous driving... which I haven't been. My only point was that his newer, better equipped car stopped and my Cento did not - hence I would like it to stop quicker when faced with the need to do an emergency stop. That was all.

"No it's not a custard"
------------------------
[email protected]
------------------------
Van Aaken High Boost Turbo engine for sale - "0-60 in the low 7's and enough top end to get you very seriously banned!!"

Sorry for speaking.

Liam

**** happens!
 
I think Liam was suggesting inapproiate use of speed, not speeding...

----------
Uno 1.0ie Start. Standard.
ff_banner.jpg
 
the thread is about neither, back to the brakes..

how much better are the uno turbos brakes? i was playing on replacing my discs with some brembo discs and stick some mintex pads in there. I considered a GT conversion, but have no plans to change the std wheels. What do you mean by spaced rallycinq?


Cinq Sporting - and yes, its broom yellow!
 
Originally posted by bad_boy_racer
Thanks for that Pete - I've got some new shoes around - but may aswell do the drums aswell if I change them. Also I have heard that it is possible to buy "uprated" (for want of a better term) drums? Do you know if this is true and have you heard if they are any good/worth it?

Matt,

Red Dot do slotted rear drums, theory is they will run cooler and fade less. I've never actually tried them so can't really say if they are better than standard though.

Pete.

Links: 1242cc cinq, turbo cinq, Cinqs&Seis Yahoo group, Clubcento
 
Originally posted by arc
the thread is about neither, back to the brakes..

This was my point. It just didn't need a comment from anyone.

Cheers Pete - I think I may look into that option then. Might speak to Rob W/Peter at GSR 'bout them.
Matt

"No it's not a custard"
------------------------
[email protected]
------------------------
Van Aaken High Boost Turbo engine for sale - "0-60 in the low 7's and enough top end to get you very seriously banned!!"
 
Spaced. I took the external standard sporting spacer and had it turned down to fit inside the Uno disc.

The Uno discs are a similar size to the cinq ones but are vented. I would have thought for road use, keep the standard calipers, fit slotted discs and better pad material. You can get an uprated shoe material for the rear too.

Cheers

D

Grumpy old git going fast downhill rather than downhill fast!!
 
Slotted Red Dot Drums are really hard to find, me and Brian tried for about a year to find a place that did them with no joy. Tarox used to do them as well, but when brian and his dad asked tarox at the autosports show they informed us that they stoppped producing them.



David Pearson
 
Sorry to jump in here but I just want to ask about the Punto GT brakes on a cinq.

Do i just have to source the GT calipers and the discs and then take off the standard cinq discs and calipers and replace with the GT ones?
Is there anything which has to be done in order to fit the discs and calipers?

Cheers

Karwing

Cruisin aint a crime!!
 
hey

I am sure brian would not mind me jumping in here as he has fitted them on his cinq. Also Julio has got them as well. From what Brian has told me everything bolts on easily enough, the only problem i can remember brian saying was the weights on the alloys. Depending on how they are put onto the wheel they might catch the calipers, moving them on the wheel slightly should slove it. Also you need 14inch alloys.

It is probs worth remembering that you can not put the spare wheel onto the front once you have GT discs on. So if you get a puncher in a front tyre you would have to take an alloy off the rear and put the spare wheel on there and then change the damaged tyre with the alloy from the back. Or you could buy a 5th Alloy, but that would be mucho dolla.

David Pearson
 
Back
Top