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matt.m3 View Drop Down
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Direct Link To This Post Topic: Big brakes??
    Posted: 28-March-2004 at 17:24

After some advice,

Thinking about buying big brakes for my E30 M3 cab. I Want to use an Ap set up but they don't sell a brake kit for the M3. I've found some companies that do a bespoke kit for around £1300 (4 pot) to £1800 (6 pot) but I can get a large dicount from AP on the caliper and discs through my company also I'm skilled engineer working for an F1 company so machining my own bells and brakets is no prob. What I need is some technical info (dimensions) on the parts required.

Any help would be appreciated as it would save me the best part of a grand.

Cheers

Matt.

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Direct Link To This Post Posted: 28-March-2004 at 17:39
I can't help out on the specs , but www.s14shop.de sell a AP brake kit for E30 M3's that use their 4 pot calipers with 305mm and 330 mm size dics for 15" and 16" wheels . There was a place in the states selling the custom E30 M3 kit also , but I cant find the link.

Something tells me you are going to get a lot of PM's about this kit, should you be able to get a discount from AP and manufacture your own bells and brackets

Try asking for the exact specs over at www.s14.net should you have no luck here.

Edited by BMG M3
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Direct Link To This Post Posted: 28-March-2004 at 18:08

Cheers I'll give them a try, I just hate paying someone lots of cash for some thing that's not all that difficult!!!!

If it all works out I might get a bit more adventurous and make some high lift cams and stuff.

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Direct Link To This Post Posted: 28-March-2004 at 19:15
Matt

What F1 team do you work for?
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Direct Link To This Post Posted: 28-March-2004 at 22:43

Unfortunatley not Williams BMW!!!

I work for Mclaren which is not doing all that well at the moment .

My brothers also work in the industry BAR so is a bit of a family thing.

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Direct Link To This Post Posted: 28-March-2004 at 23:32
A colleague at work, her father is the floorshop manager at BAR.
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Direct Link To This Post Posted: 29-March-2004 at 00:19

Is he the machine shop manager? or one of the top bods?

My brother should know him.

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Direct Link To This Post Posted: 29-March-2004 at 07:12
Think he is in charge of the guys that do all the work on the cars in the workshop. He's not a director.
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Direct Link To This Post Posted: 29-March-2004 at 09:17

I would be seriously interested in a disk and bell setup for my M3. They would have to fit inside the 15" wheel though and I think 4 pots would be sufficient. There is nothing wrong with the stock setup as far as braking efficiency goes but the stock disk setup is *****.

I am already looking at having someone make me a kit, it doesn't strike me as being that difficult to do but most people in the UK seem to want to sell you parts off the shelf and not really offer any kind of engineered solution.

Edited to remove objectionable language, please read the forum guidelines



Edited by Nigel
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Direct Link To This Post Posted: 29-March-2004 at 13:53

If I can't find the technical info I require as the companies that manufature the bells and stuff don't like to give too much away!!! then I may just buy some and reverse engineer them.

At the moment I can get between 22 and 26% discount on any AP stuff so it would be well worth taking this route and I will also use far superior grades of ally than what is offered by the aftermarket tuners.

I'll let you all know how I get on.

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Direct Link To This Post Posted: 29-March-2004 at 15:53
Matt, I have some 15" wheel dimensions (courtesy of Uwe, who has done some investigation himself and produced some cracking drawings).

So far I have been told that you need 50mm clearence between disk and wheel, whcih means that the biggest you can get on a 15" is about a 320mm disk. Having looked at manufacturers sites, Wilwood produce decent info on their website as do AP re disk and caliper dimensions.

I am really keen to do this, so if you need a willing volunteer/guinea pig, drop me a PM.

Rgds

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Direct Link To This Post Posted: 29-March-2004 at 16:27
2nd guinea pig here! (depending on cost as I am ready to bolt on my DIY conversion)
E61 520d, slow and buzzy but my wallet likes the mpg.....
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Direct Link To This Post Posted: 29-March-2004 at 17:11
Uwe, I'm intrigued, what is your DIY creation?
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Direct Link To This Post Posted: 29-March-2004 at 21:16
Guys,
Geoff steel racing does a AP Brake kit that fits under the standard 15 wheels. Maybe try to get some info from him about the size of the kit!!!

Also I am willing to be the 3rd Guinea Pig!!!!
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Direct Link To This Post Posted: 29-March-2004 at 21:56
Sorry to butt in but saw this Turner Big Brake

They might be able to tell you what caliper they use.
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Direct Link To This Post Posted: 29-March-2004 at 22:13
Originally posted by stevesingo stevesingo wrote:

Sorry to butt in but saw this Turner Big Brake

They might be able to tell you what caliper they use.


Thats a Brembo caliper and it won't fit under a 16" E30 M3 wheel . It may fit under another type of 16" wheel but not the stock basketweavers , I asked them .
I'll make a post over at www.s14.net and see if anyone there is running AP's with Bells and knows the specs.Click Hereto see .

Edited by BMG M3
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Direct Link To This Post Posted: 31-March-2004 at 11:27
Didn't Andy'O have AP's fitted to his?
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Direct Link To This Post Posted: 31-March-2004 at 12:15
Found this at http://www.bgdevelopments.co.uk/

Brake Kits

B.G. Developments can design and supply bespoke Brake Kits to complement the range of A P Racing Formula Brake Kits covering makes and models that AP Racing do not currently supply. Examples of these are the BMW E30 M3, Aston Martin V8's {early models}, a Front Kit for the new Aston Martin DB7 that does not require a suspension change and the Nissan Sunny GTiR. We also supply 362mm Disc Conversions for the Subaru Imprezza, Mitsubishi Lancer and Nissan Skyline.


might be of some help also click here and her from roadfly
it looks as if John W might be able to help here . . .

Edited by 215DMX
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Direct Link To This Post Posted: 31-March-2004 at 12:48
Alcon is worth a look
E61 520d, slow and buzzy but my wallet likes the mpg.....
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Direct Link To This Post Posted: 31-March-2004 at 14:07
Guys, I think before everyone goes "link crazy" there are a couple of things to consider. Most of the kits out there are designed for 16" wheels or bigger. Personally that's not my bag. I want a setup that will fit inside the 15" wheels and has 2 piece disks. I spoke to BG, and sure they can offer stuff but what they offered me wouldn't fit inside a 15" wheel. Wilwood make loads of stuff for Nascar, they have to run 15" wheels so that is a good place to start looking, their catalogue is fantastic and I am sure a set of Nascar brakes would probably work just fine on an e30 M3...........

I think if you want big brakes and are prepared to spend money on new wheels then there are a fair number of options out there. If you want a setup to fit inside a 15" wheel then your options are more limited and a bit of clever engineering may be required, which is where most vendors don't appear to want to go.
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