86 Carrera Calipers on 79 SC?

[Flojo]

I happen by chance to get a brand new pair of front Carrera 3.2 Calipers.
Correct me if I'm wrong but I recall that the mounting bore is the same as to those of the SC M Caliperm (?). I have Bilstein Turbo struts front.

Did a search but could'nt find exacly this.

All I need is the pads and the (bigger) Carrera rotors (which will give me more cooled mass), right?
Is there a different fluid line too?

Thanks

edit: set up as is now (bone stock SC brake system)
- new master cylinder 2016
- new Zimmerman drilled rotors front/rear 2015
- new calipers front/rear 2015
- new steelfelx brake lines (4x) 2015
- new pads Ate regular 2016 (the EBC greenstuff did not harmonize on Zimmermann)
- flushed brake líne system (regular DOT4) 2016

[prschmn]

You've got it right-just bolt em on and go-or stop

[jamesjedi]

There are a lot of posts about it, here is one;

Porsche 911 Brake Upgrade Question

[jamesjedi]

I assume you track the car? otherwise such a change is for aesthetics. Perhaps it would be worthwhile to look up brake cooling - such 993 air scoops.

[Flojo]

Thanks.

I think about it as the Carrera caliper has wider pistons.
Together with the larger rotors it will be enough improvement without going sky high.

I take this as a GO :

Originally Posted by 175K911

The only change I made on my SC was Carrera calipers and rotors front, stock rear, plus true track pads and fluid. ... Never a problem!

[juanbenae]

Originally Posted by jamesjedi

I assume you track the car? otherwise such a change is for aesthetics. Perhaps it would be worthwhile to look up brake cooling - such 993 air scoops.

there is no discernible visual difference between the OE SC & Carrera rotor & caliper.

adding the front Carreras and a cooling set up was all I ever did to my spec racer brakes running the OC SC rears & good pads. worked well.

[jamesjedi]

The Carrera caliper is the same as the SC caliper - except that there is a spacer added in the caliper that allows the use of a wider rotor.

I have the same brakes. I just stared this thread as I cant find the answer as to their bias/balance;

Brake Bias - Wide "A" with M rears?

[Flojo]

Originally Posted by jamesjedi

The Carrera caliper is the same as the SC caliper - except that there is a spacer added in the caliper that allows the use of a wider rotor.

piston diameter is not wider?
at leas what I saw is that the pistons pad-touching edge is wider in design.
no?

Originally Posted by jamesjedi

I have the same brakes. I just stared this thread as I cant find the answer as to their bias/balance

is'nt this answer enough? if there was a bias-problem, he'd mentioned it (or any body else)

Originally Posted by 175K911

The only change I made on my SC was Carrera calipers and rotors front, stock rear,... Never a problem!

[Pazuzu]

Pistons are exactly the same, the only difference as mentioned is the Carrera calipers have a 4mm spacer, nothing else is different. The mounting holes, brake line connections, piston bore, piston size, internal fluid routing and pad size are all 100% exactly the same. The 2 side castings are the exact same part.
Going to the Carrera setup will just give you some extra thermal mass. not worth spending money on, but if you got a good deal (meaning, nearly free) on the wider equipment then there's no reason to not run it.

[Flojo]

Ok, so new rotors only.

Thanks

[jamesjedi]

"is'nt this answer enough? if there was a bias-problem, he'd mentioned it (or any body else)"

There are many different setups that have been used, Some have better bias than others.

Here is quote from Bill V. I hope he does not mine my quoting him. He has been a source of information on brakes for a long time on this board.

"A small brake upgrade for SC or earlier Carrera is to use the wide A caliper and rotor w/ stock rear M caliper and rotor. This retains the excellent 9 bias seen in all 911s through '83.

Similarly '84 can leave their front alone and change the rear to the regular M rear using the regular M 20mm rear rotor instead of the wider 3.2 Carrera 24mm rear rotor and wide M. This gives the car excellent bias once the stock p/v is removed."

[Flojo]

Do I understand correctly:
- put actual SC fronts to rear
- put Carrera up front

?

[Bill Verburg]

Originally Posted by Flojo

Do I understand correctly:
- put actual SC fronts to rear
- put Carrera up front

?

Read this

Two additional notes front M and rear M use the same pads but are otherwise quite different calipers

There is almost never any good reason to put fronts in back

[Flojo]

Thanks Bill!