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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

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hopz121
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by hopz121 » Fri Jun 23, 2017 2:44 pm

Problem is i will need Disc's and pads which takes it closer to £1300 :(

I can get an AP 6 Pot kit with bigger 2 piece disc's for only £400 more which are a better kit again.
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by MrPT » Fri Jun 23, 2017 3:04 pm

hopz121 wrote: Fri Jun 23, 2017 2:44 pm I can get an AP 6 Pot kit with bigger 2 piece disc's for only £400 more which are a better kit again.
Reyland? That is a great price, especially since it includes DS2500s (although not floating discs, I notice).

But you sound like me... "only £400 more". The next man maths step after that is "since I've upgraded the fronts I can get the caliper-only AP rear kit for under a grand. Then I'd effectively be EARNING MONEY". :D
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by D4dawg » Fri Jun 23, 2017 4:14 pm

You'll be fine. Your brakes are cleaner than most people's windscreens when suddenly you're balls deep in the wrong kind of bush.
[/quote]

:rofl: :titshake: :titshake:

Haha love it ;)
I'll give it a good slam and see
But currently simply makes my neck snap

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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by Vanne » Tue Jun 27, 2017 6:14 am

MrPT wrote: Fri Jun 23, 2017 9:17 am

Hah, cheers. Close, but no cigar though - PBMW front caliper with 996 rears will send the brake bias forwards on the Z4M/CSL. Not by a huge amount (plus the stock setup is quite aggressive), so this configuration will probably leave you in an ok place, balance-wise.

What has really surprised me, having trawled through all this brake info, is just how substantial the stock brakes are. Additional cooling (like exdos has rigged up) and uprated pads are clearly a great way to go, albeit one that doesn't tick the box aesthetically or reduce unsprung mass.

When are we going to see pics of your new brakes, btw? :fuelfire:
Soon enough mate, currently hanging out in Rome for a day or 2. I have a little vibration in the front under heavy braking atm, but anticipate this will disappear after the new pads are bedded in. My brakes are not very showy, and they are black, so only a keen eye (like all you guys have) will see that its not stock. The braking performance however, is great.

I have to admit it too though, i never had any issues with the OEM claws, they are actually top notch and dependant upon which pads you match them with can give stellar performance. Brake cooling could have been better designed though.
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by Bodyboarder » Sat Jul 14, 2018 12:37 pm

Hi just bumping this thread .....

Quick question to Mrpt

Did you have to run spacers with this setup? And if so what size ?

My front csl reps are 19” 8.5 et 40

Thank you

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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by MrPT » Sat Jul 14, 2018 1:03 pm

Bodyboarder wrote: Sat Jul 14, 2018 12:37 pm Hi just bumping this thread .....

Quick question to Mrpt

Did you have to run spacers with this setup? And if so what size ?

My front csl reps are 19” 8.5 et 40

Thank you
10mm, which gives a minimum clearance of 2-3mm.
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by Bodyboarder » Sat Jul 14, 2018 1:12 pm

Thanks .... and you are running genuine csl’s? Et 44 I guess ?

So I’d need a 5mm minimum.....

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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by MrPT » Sat Jul 14, 2018 2:52 pm

Bodyboarder wrote: Sat Jul 14, 2018 1:12 pm Thanks .... and you are running genuine csl’s? Et 44 I guess ?

So I’d need a 5mm minimum.....
Yep, ET44. Need a 10mm spacer anyway to clear the conical springs on the KWs.

Aston part numbers for the calipers are 4G43-2C462-DA and 4G43-2C463-DA ("-DA" is the red variant).
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by Bodyboarder » Sat Jul 14, 2018 2:59 pm

Does anyone know if you can get 5-8mm hubcentric spacers nowadays? Obviously with longer bolts

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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by hopz121 » Sat Jul 14, 2018 3:07 pm

Bodyboarder wrote: Sat Jul 14, 2018 2:59 pm Does anyone know if you can get 5-8mm hubcentric spacers nowadays? Obviously with longer bolts
I have a feeling 10-12mm is the smallest you’ll get in hub sentric spacers, I could be wrong though
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by Bodyboarder » Sat Jul 14, 2018 3:46 pm

hopz121 wrote: Sat Jul 14, 2018 3:07 pm
Bodyboarder wrote: Sat Jul 14, 2018 2:59 pm Does anyone know if you can get 5-8mm hubcentric spacers nowadays? Obviously with longer bolts
I have a feeling 10-12mm is the smallest you’ll get in hub sentric spacers, I could be wrong though

Yes have read that from other threads .... which would put my wheels at et 28-30 ! To aggressive

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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by BMWZ4MC » Sun Jul 15, 2018 12:53 am

I think I have 5mm hub centric spacers. I’m 12000 miles from my car at the moment but I’ll try to find out if they are and post back.
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by Bodyboarder » Sun Jul 15, 2018 7:22 am

BMWZ4MC wrote: Sun Jul 15, 2018 12:53 am I think I have 5mm hub centric spacers. I’m 12000 miles from my car at the moment but I’ll try to find out if they are and post back.
There maybe hope then :D

Appreciate it :thumbsup:

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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by BMWZ4MC » Sun Jul 15, 2018 1:52 pm

Bodyboarder wrote: Sun Jul 15, 2018 7:22 am
BMWZ4MC wrote: Sun Jul 15, 2018 12:53 am I think I have 5mm hub centric spacers. I’m 12000 miles from my car at the moment but I’ll try to find out if they are and post back.
There maybe hope then :D

Appreciate it :thumbsup:
Bad news - you were correct, 5mm spacers are not hubcentric

Good news - the spiggot on the hub extends through a 5mm spacer preserving the hub-centricity (which I’d mis-remembered as a flange on the spacer)
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VagBremTechnic Big Brake Kit for E85/E86 Z4 'M' models

Post by Bodyboarder » Sun Jul 15, 2018 9:42 pm

Ok that’s good to know .... so it’s really either a 5mm or hubcentric 10mm that I could use . Good to know . I suspect I’ll have to change tyre sizes as well . At the moment I’m on 275/30 245/35 .

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