E92 brake upgrade?

[krallicious]

I have been putting alot of thought into this recently and I would like some input from you kind gents.

1) Full AP upgrade.
2) Just upgrading the calipers/pads while keeping the OEM discs.
3) Fluid and pads.

What would be the best direction to head? I will be looking at tracking my car more this year and after a pedal to the floor moment at the 'ring last year it became obvious that the brakes, although fine for road use, are just shy of bks on track.

I have looked into the full upgrade but at £2500 it is currently a little rich for me.

Would I be correct in assuming that, like the E46, the OEM discs are essentially good but hampered by crappy calipers?

Has anyone just upgraded the pads and fluid? If so, how much of a difference did it make and what combination did you use?

I am especially curious about point 3 due to the fact that that a chap from MSV told me they had experimented with different fluid and pads and had found no decernable difference to the standard setup.

Cheers,

Pete

[krallicious]

What would be the best way to improve the ducting? Cut a hole in the arch lining?

[krallicious]

markbmw said:

My mechanic (a VAG specialist) has just fitted the 6-piston brake kit from the BMW Performance range; (see page 2)

http://www.bmw.co.uk/bmwuk/owner/accessories_enqui...

I think they retail at about £1000, pretty good value. Of course if you can get them trade they'd only cost about £600..!

I have all ready asked BMW and their response was, frankly, unbelievable. They claim the M3's brakes are powerful enough and will not offer the BMW performance upgrade. They did, however, put me in contact with the local AC Schnizer dealer. £5000 for a front BBK

[krallicious]

bher said:

I had the same feeling about improving the brakes without changing everything:

This is what I did

http://www.realoem.com/bmw/showparts.do?model=WD91...

The pads are larger and the car is now fade free (on track) but at the price of a noisy (really) squealing in city use.

I don't know if I need to change the fluid because once you start with high performance liquid you need to change them every 6 months to avoid troubles (could someone confirm this?)

Thanks for the link. What pads did you choose in the end? Yellowstuff?

[krallicious]

bher,

Thanks for clarification. I'll ask at my dealers here in the UK to see if they can order them in. If not, I'm in Germany this weekend so will ask there.

Pete

[krallicious]

tomvcarter said:

Out of interest what tires / alloys are you using to track the e92 M3 on?.

I have yet to track the car properly. I have only done the 'ring but I used the normal 19s with PS2s. I will also be using the same setup for track work this coming year.

[krallicious]

rash_decision said:

If you are that heavy in the brakes at The Ring, you'd better do something!! Lol.

Interesting. I managed a day at Cadwell on the OEM pads without problems and that is far heavier on brakes. Never had a problem at Snetterton either.

Anyway, I have the BMW Perfomance pads now which allowed 4 full laps of the ring without any fade but I am still going the AP route in due course.