Brakes

[CraigMillwardCroft]

What is the best and size of brake to get for a CSL

[The Gorilla]

Hi,

If I was doing this to a road car that
see's some Track work, I would stick
with the std CSL Discs and find some
6 pot Alloy calipers that have piston sizes
similar to the AP 6 pot.

Then fit uprated flex brake lines to front
and rear,with the ATE super blue fluid, and
the RS 29 front pads, which many hear
swear by.

If you want to you could also fit a brake
bias valve in on the rear lines just of
the ABS under the bonnet or in car.

The std Discs are 28mm thick, most
after market are 32 -35mm, so
with some research on the calipers you
would have a very good set up, that could
be all done for around 1k if your std CSL
discs are good.

By retaining the 28mm std discs rather than
after market you would also have less
unsprung weight on the front, which helps.

Regards,

The Gorilla.

[AlexGTT]

Good suggestion Gorilla. Nice ideas.

I'd only add to that by saying if your less inclined to get your hands dirty yourself, the front AP kit is a great off the shelf solution. Tryed and tested.

[mattCSLnut]

Originally Posted by The Gorilla

Hi,

If I was doing this to a road car that
see's some Track work, I would stick
with the std CSL Discs and find some
6 pot Alloy calipers that have piston sizes
similar to the AP 6 pot.

Then fit uprated flex brake lines to front
and rear,with the ATE super blue fluid, and
the RS 29 front pads, which many hear
swear by.

The std Discs are 28mm thick, most
after market are 32 -35mm, so
with some research on the calipers you
would have a very good set up, that could
be all done for around 1k if your std CSL
discs are good.

By retaining the 28mm std discs rather than
after market you would also have less
unsprung weight on the front, which helps.

Regards,

The Gorilla.

Standard CSL discs are very good but why bother searching in vain for 6 Pot callipers to fit over the OEM CSL discs when BREMBO make perfectly usable 4 pot callipers off Boxter S / Cayman S that are readily available and with a little imagination fit snugly over CSL OEM discs
BTW, you just knew that pic was coming

[alexk]

Originally Posted by The Gorilla

By retaining the 28mm std discs rather than
after market you would also have less
unsprung weight on the front, which helps.

That's not necessarily true.
The AP front discs are similar weight, if not lighter than the CSL discs.
Also, the AP calipers are much lighter than the stock CSL ones.

A list I am compiling

http://clubcsl.com/index.php?option=...d=10&Itemid=11

[The Gorilla]

Hi,

Alexk-

I do not think you will find that the
AP Discs at 48 vane 354 x 32mm
are lighter than the std CSL
Discs at 345 x 28mm.

I run the '24' vane 354 x 28 on my
E30 M3 as they are are nearly 1kg
lighter each than the 354 x 28 '48' vane.

Its not just diameter but the number and
thickness of the cooling vanes that can
make a big difference to disc weight.

Another route you can go on the CSL
is to use a set of the Brembo Calipers
of the BMW 840 Ci.

It means going down to the M3 324 x 28
front discs, but they stop a near on 2 ton
8 series very well.

These will bolt straight on with no need
for Caliper Brackets etc, you just have
to remove the CSL caliper adapter.

Few E46 M3 owners run these.

Much, much better than the std
CSL Brakes, even though your
running a smaller disc, and even
more weight saving AlexK !!!! [Lol]

S/H set is usually about 2-300 pounds,
or you can still purchase them new from
the Dealer from around 900 inc VAT.

Mkoop- if they are two part caliper, not mono
block, then have a spacer made
to bolt between the 2 halves in
hard alloy or Ti.

Regards,

The Gorilla.

[mattCSLnut]

Originally Posted by The Gorilla

Hi,

Another route you can go on the CSL
is to use a set of the Brembo Calipers
of the BMW 840 Ci.

It means going down to the M3 324 x 28
front discs, but they stop a near on 2 ton
8 series very well.

These will bolt straight on with no need
for Caliper Brackets etc, you just have
to remove the CSL caliper adapter.

Few E46 M3 owners run these.

Regards,

The Gorilla.

Hi Gorila

Before I decided to go with the Porsche BREMBO 4 pot callipers over my OEM CSL discs, I though about the 840 Ci BREMBOs you mention above but thought they were a bit small
and the pad contact patch wasn't that much bigger then the standard CSL pads. Can these be bolted straight on at the rear over the OEM CSL discs as well ?

[The Gorilla]

Hi,

MattCSLnut- I belive the mounting
centres are different, and the
disc offset.

The 840 Ci calipers with the E46 M3
Discs work well, for a road car upgrade
and some Track Day use.

AlexK- on your weight comparission
what are you factoring in for the
Disc belles and belle mounting nuts and bolts ?

AP Web site weight is for disc only.

Regards,

The Gorilla.

[shimmy]

Originally Posted by CraigMillwardCroft

What is the best and size of brake to get for a CSL

Big ones.

Reall big ones.

[mattCSLnut]

Originally Posted by shimmy

Big ones.

Reall big ones.

Don't you get all technical with your advice