M3 CSL to 328i Sport (New Steed)

[Craig]

If the width is too much you can just split the calliper and machine it down. e46 discs are 28mm wide I think, or is it 30mm so it shouldn't be too bad but if it is, things can be altered.

[phat///M3]

Originally Posted by Craig

If the width is too much you can just split the calliper and machine it down. e46 discs are 28mm wide I think, or is it 30mm so it shouldn't be too bad but if it is, things can be altered.

Either that or there are small plugs made by Brembo that fit inside the pistons that compensate for a thinner disc.

[mattCSLnut]

Originally Posted by Craig

If the width is too much you can just split the calliper and machine it down. e46 discs are 28mm wide I think, or is it 30mm so it shouldn't be too bad but if it is, things can be altered.

Hi m8.
Apparently, splitting these calipers into the two halves that they are made of, renders them useless

[mattCSLnut]

Originally Posted by phat///M3

Either that or there are small plugs made by Brembo that fit inside the pistons that compensate for a thinner disc.

That sounds interesting Any web linx ?

[phat///M3]

Originally Posted by mattCSLnut

That sounds interesting Any web linx ?

Nope sorry, I just know they make them as they come with their 4 piston rear caliper kit as that uses the orignal BMW disc (which I believe is 28mm) and the same caliper is used on their rear 345mm discs kit without the little spacers.

[The Gorilla]

Hi,

MattCSLNut- if your going to use those
Brembo Calipers, on your CSL, then you will need
to locate some 'thicker' pads which is
sometimes an option, or if the tolerances
allow, some 'Pad Spacers'.

Thin metal plates that fit between the
caliper pistons and the back of the
Brake pad, usually the same shape
so they work same as the pad does on
the lugs or pins.

If they are for a 30mm disc then you can
run them on a 28mm disc as the caliper pistons will
not 1mm per side critical when fully extended.

If there for a 32mm disc then check the
piston length.

A lot of Brembos are Cast, so you are
not able to split them.

What sizes are the pistons in those calipers ?

And do they mount as a Leading or Trailing
Caliper, as you require the smaller piston
before the larger, when mounted as the CSL runs trailing
calipers.

Regards,

The Gorilla.

[Craig]

Wonder why you can't split them, I did notice the bolts were very small compared to the likes of the 840ci callipers which can be split. Also learn something new every day, didn't know Brembo made piston plugs for spacing issues.

[cslgirl]

Very nice

Useless information of the day - (I think) cars ending in a DL were registered here on the isle of wight (before 2001)!

[mattCSLnut]

THANX for the ever useful info Gorilla ... I'll measure the pistons and let U know BTW, I've started a fresh thread about this so for the benefit of others, maybe we should continue with this topic, on there. Link below

http://www.cslregister.com/forum/showthread.php?t=3563

Originally Posted by The Gorilla

Hi,
MattCSLNut- if your going to use those
Brembo Calipers, on your CSL, then you will need
to locate some 'thicker' pads which is
sometimes an option, or if the tolerances
allow, some 'Pad Spacers'.

Thin metal plates that fit between the
caliper pistons and the back of the
Brake pad, usually the same shape
so they work same as the pad does on
the lugs or pins.

If they are for a 30mm disc then you can
run them on a 28mm disc as the caliper pistons will
not 1mm per side critical when fully extended.

If there for a 32mm disc then check the
piston length.

A lot of Brembos are Cast, so you are
not able to split them.



What sizes are the pistons in those calipers ?

And do they mount as a Leading or Trailing
Caliper, as you require the smaller piston
before the larger, when mounted as the CSL runs trailing
calipers.

Regards,

The Gorilla.

[Rags]

Originally Posted by mattCSLnut

Yep, good to meet U too m8 and put a face to a name U bird killer Shame U didn't bring your CSL with Ya No m8, not pissed off at all as the brakes were fine. Before U arrived I had a 20 minute non stop, flat out, Instructor laps and they were working great, without fade, if anything the brakes needed a lap to warm up (the pads however, as great as they are, are at the end of their life now) They were 30% worn when I bought the car in October and have since done two TDs and over 2000 miles. I've ordered another set of the same, Performance Friction "Z" rated TD pads front & rear, all for a grand total of £140 delivered That's what I call a bargain.

http://www.part-box.com/performance-...1058_1059.html

They are really superb, in conjunction with the braided houses and Racing Blue brake fluid. I'm just a little concern that as I build up speed & confidence in my CSL and as the ambient temperatures rise, I may need extra braking power come May/June time. I'm just thinking ahead and out loud about a simple solution that doesn't cost thousands £££ or require heavy modifications. I personally think the OE CSL discs can take the heat, however the OE callipers will start to complain, even with the PF pads, so a BREMBO four pot callipers, like the ones from the Porker 928 I think might do the job. Over to Mr Gorilla

That was a some blood, sweat and tears fitting those genuine discs, PF pads, Superblue and braided hoses