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Brake upgrade from E86 to Z4M

2003 - 2009, roadster, coupe, facelift
Cirstu
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Brake upgrade from E86 to Z4M

Post by Cirstu » Sat Sep 23, 2017 8:06 pm

Hi Guy`s, will Z4M front calipers fit a E86 2008?

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thanatu55
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Brake upgrade from E86 to Z4M

Post by thanatu55 » Sat Sep 23, 2017 8:14 pm

As far as I'm aware, yes. Check the How-to sections and the following thread for reference. viewtopic.php?f=24&t=8399

I'm doing a big brake upgrade too and sourced some tatty 330i calipers from ebay.

Cleaned them up to look like this
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Mr Tidy
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Brake upgrade from E86 to Z4M

Post by Mr Tidy » Sat Sep 23, 2017 9:54 pm

thanatu55 wrote: Sat Sep 23, 2017 8:14 pmI'm doing a big brake upgrade too and sourced some tatty 330i calipers from ebay.
Just noticed this - do you have any 3 litre discs yet? Due to a change of plans I have a full set of barely used Pagid discs - if they'd be of any interest PM me.

Cheers, Iain.
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Gone - Montego Blue
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thanatu55
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Brake upgrade from E86 to Z4M

Post by thanatu55 » Sat Sep 23, 2017 10:04 pm

Mr Tidy wrote: Sat Sep 23, 2017 9:54 pm
thanatu55 wrote: Sat Sep 23, 2017 8:14 pmI'm doing a big brake upgrade too and sourced some tatty 330i calipers from ebay.
Just noticed this - do you have any 3 litre discs yet? Due to a change of plans I have a full set of barely used Pagid discs - if they'd be of any interest PM me.

Cheers, Iain.
Yes sorry I've already got some Brembo drilled discs otherwise I'd have snapped your hands off for them. Thanks for the thought though.
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Mr Tidy
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Brake upgrade from E86 to Z4M

Post by Mr Tidy » Sat Sep 23, 2017 10:05 pm

That's a shame, although the set I have aren't drilled.

Good luck with the upgrade. :thumbsup:
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black

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Ed Doe
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Brake upgrade from E86 to Z4M

Post by Ed Doe » Sat Sep 23, 2017 11:26 pm

The m front brake caliper brackets don't fit the si hubs. You can make the calipers themselves fit the si hub brackets but you will then need to grind the si brackets to accommodate the bigger m discs. I personally wouldn't be comfortable with having less strength on the mounting brackets...
Carbon Black '07 M Coupe: Intrax 1k2 Coilovers, AP-Racing, Raybestos ST45s, Tillets, Schroth, Vibratechnic, Apex EC7, Strongstrut, Eventuri, H&S, RTD, 4.1FD :evil:
Silver Grey '06 3.0si Coupe - SOLD :(

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thanatu55
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Brake upgrade from E86 to Z4M

Post by thanatu55 » Sun Sep 24, 2017 12:10 am

Ed Doe wrote: Sat Sep 23, 2017 11:26 pm The m front brake caliper brackets don't fit the si hubs. You can make the calipers themselves fit the si hub brackets but you will then need to grind the si brackets to accommodate the bigger m discs. I personally wouldn't be comfortable with having less strength on the mounting brackets...
Ah ok I take back my first answer then as I didn't know that.

Best to follow the linked thread then to see which calipers fit which brakes / models etc.
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Cirstu
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Brake upgrade from E86 to Z4M

Post by Cirstu » Sun Sep 24, 2017 4:31 am

Ok thanks Guy`s.......

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Brake upgrade from E86 to Z4M

Post by Scooba_Steve » Sun Sep 24, 2017 1:36 pm

If you're just using for road use, don't bother changing. If you are looking to track regularly then go down a proper BBK setup. Occasional track use, better fluid and pads.

Stock brakes a plenty good enough for road use, on track they just need more frequent stops.
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Ed Doe
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Brake upgrade from E86 to Z4M

Post by Ed Doe » Sun Sep 24, 2017 4:35 pm

FWIW I've done 2 trackdays at Goodwood on the OEM discs and pads, and whilst they're a bit wooden now from overheating they stood up pretty well. Obviously a bbk is ideal, but from personal experience you can get away without a brake upgrade for sometime first few times on track.

For the road, I'd certainly not bother with anything other than decent oe stuff and regular fluid changes. You just can't get close to the limit of the brakes for long enough to start cooking things on the road, unless you're being a serious plonker :lol:

Oh and thanatu55 I applaud your choice of refurb colour for the calipers - imo gold looks ace, particularly on a silver car :)
Carbon Black '07 M Coupe: Intrax 1k2 Coilovers, AP-Racing, Raybestos ST45s, Tillets, Schroth, Vibratechnic, Apex EC7, Strongstrut, Eventuri, H&S, RTD, 4.1FD :evil:
Silver Grey '06 3.0si Coupe - SOLD :(

Cirstu
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Brake upgrade from E86 to Z4M

Post by Cirstu » Sun Nov 11, 2018 9:47 pm

Decided to go for six pott front and 4 pott rears... braking is now awsome.
20181111_203310.jpg
20181111_203310.jpg (113.04 KiB) Viewed 1255 times
20181111_203322.jpg
20181111_203322.jpg (110.84 KiB) Viewed 1255 times

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kis
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Brake upgrade from E86 to Z4M

Post by kis » Mon Nov 12, 2018 1:26 pm

Very nice! :thumbsup:
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Brake upgrade from E86 to Z4M

Post by srhutch » Mon Nov 12, 2018 2:32 pm

They look nice, details please.
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Cirstu
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Brake upgrade from E86 to Z4M

Post by Cirstu » Mon Nov 12, 2018 5:43 pm

srhutch will pm you asap, in Egypt at present.

Cirstu
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Brake upgrade from E86 to Z4M

Post by Cirstu » Mon Nov 12, 2018 5:46 pm

356x32 6pot front, 330x28 4pot rears

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