Technical Rear disk caliper

[nmrmak]

Hey there, i'm from the 'cento forum actually, but i'm doing a rear disk conversion and i was just wondering if any of you had pics of the rear caliper or maybe know if the rear caliper / piston is the same as uno turbo?

I know i sound confusing, so this is what i need:
a uno turbo piston for the rear brake calipers. But i found online that it's the same dimensions, and an online catalogue shows a similar picture to a piston that i have here.

The uno turbo piston is in the attachment, and i just need to know if the marea rear caliper and piston looks like it. Thanks a lot!

 

[jug]

uno has 228mm rear discs and marea has 240mm rear discs so i would expect the calipers to be different.

 

[nmrmak]

the calipers probably are different, but i'm wondering if the brake piston inside the caliper is different.

 

[jug]

it would not surprise me if they are the same

 

[pycoed]

Hey there, i'm from the 'cento forum actually, but i'm doing a rear disk conversion and i was just wondering if any of you had pics of the rear caliper or maybe know if the rear caliper / piston is the same as uno turbo?

I know i sound confusing, so this is what i need:
a uno turbo piston for the rear brake calipers. But i found online that it's the same dimensions, and an online catalogue shows a similar picture to a piston that i have here.

The uno turbo piston is in the attachment, and i just need to know if the marea rear caliper and piston looks like it. Thanks a lot!

Don't do it!!! Unless you are rallying or racing, rear discs on a road car are a pain in the neck. They don't do any work, the disks deteriorate, handbrake never works successfully & WILL cause an MOT failure even though the brakes work fine. Golf GTI & Bravo HGT - rear calipers nothing but trouble. Leave well alone.

 

[jug]

Don't do it!!! Unless you are rallying or racing, rear discs on a road car are a pain in the neck. They don't do any work, the disks deteriorate, handbrake never works successfully & WILL cause an MOT failure even though the brakes work fine. Golf GTI & Bravo HGT - rear calipers nothing but trouble. Leave well alone.

dont be silly, if you do it properly it will be exactly the same as having rear discs on a marea that had them when new. it wont cause an MOT failure, i have converted several cars over the years and they all passed their MOT no problem.

 

[nmrmak]

I don't expect large differences in the braking force on the rear either, it's just that disks dissipate heat quicker, they look better, and i'll learn a thing or two about my car in the process

If I do get a rear braking bias, i'll change the front brakes too

 

[pycoed]

dont be silly, if you do it properly it will be exactly the same as having rear discs on a marea that had them when new. it wont cause an MOT failure, i have converted several cars over the years and they all passed their MOT no problem.

Its the fact they might be exactly like rear discs fitted from new that I am warning about! They will pass an MOT once or twice, but eventually the handbrake mechanism will seize up on an otherwise perfectly working caliper & it WILL fail the MOT.
Unless there are are small drums built in for the handbrake like some Porsches, the rear disc cars I've had have had poorer handbrakes than drum rears too.
Rear discs are a needless mod to a road car - most of the braking is done up front.

 

[nmrmak]

1. a mod is a mod
2. it will look nicer
3. even though the fronts convert most of the kinetic energy to heat, the rears (drums on my seicento) warped because of heat. So i guess a sensible improvement is to go for disks, which are more heat resistant. (they can dissipate more energy before they start fading and overheating)

 

[jug]

the handbrake mechanism will seize up

there is no reason why the handbrake mechanism on a car with rear disc brakes would be any more or less prone to seizing than on a car with rear drum brakes.

most modern cars have rear discs. they are lighter and lose heat more effectively. they are easier and quicker to work on. they are more reliable. that is why the entire industry now prefers using them them to drums. drums are outdated, and soon will be extinct.