Brakes

[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]

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.

[david]

AP all around with option 378 x 36mm front rotors

Just by AP brake kit M3 E92 and that fit with just a small mod on the braker caliper the M3 E46 spindle and hub... I run theses since last year.