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M3PSM View Drop Down
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Direct Link To This Post Topic: Which E36 brake discs?
    Posted: 18-October-2005 at 16:17
I can't wait until my xmas bonus to start on my mods because I've got the bug now
First affordable upgrade is front discs.
General consensus is that fitting late 3.2 evo discs will reduce my chronic fade.
I'd love to fit a £2.5k AP kit but as 90% of my driving is in the city it doesn't seem worth it, so I'm keeping it chep to save money for the suspension set up.
Question is, are these the best replacement discs or would I benefit more by using brembo (or similar) replacements?
I'm relatively happy with stopping power in general, it's just the fade I'm trying to get rid of.
I'm also fitting Pagid "black" pads & Goodridge hoses at the same time.

Paul
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Direct Link To This Post Posted: 18-October-2005 at 16:29
How's about fitting some ducting to the centre of the disk? Might do the trick.
E61 520d, slow and buzzy but my wallet likes the mpg.....
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Direct Link To This Post Posted: 18-October-2005 at 16:41
I've heard that too & sure I've seen some kits out there.
Good call Uwe, I'll look into it
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Direct Link To This Post Posted: 18-October-2005 at 16:58

This is what you want dude

www.turnermotorsport.com

Carbon/Kevlar backing plates and carbon ducts......sweet.

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Direct Link To This Post Posted: 18-October-2005 at 17:02
As an aside, just found this.
I thought DOT5 was the way forward, but, it appears not.

MYTH # 5 - BECAUSE THEY ARE NON-HYGROSCOPIC SILICON BASED BRAKE FLUIDS ARE SUITABLE FOR USE IN HIGH PERFORMANCE CARS
DOT 3 AND DOT 4 brake fluids are ether based and are hygroscopic in nature - i.e. they absorb water vapor. As the braking system in not quite airtight, a significant amount of water can be absorbed from the atmosphere in the course of a year. A 3% water content in brake fluid drops the boiling point as much as 170 degrees F. Brake fluid should be completely replaced annually.
DOT 5 fluids are silicon based and are non-hygroscopic, which is good. They are also subject to frothing from high frequency vibration, which gives a soft pedal. Soft brake pedals may be OK in non-high performance cars (in fact, most drivers accept mushy brake pedals as normal) but they are not acceptable in any situation where the driver intends to modulate braking at high force values.
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Direct Link To This Post Posted: 18-October-2005 at 17:06
Cheers Robbie, they'll do the trick but at $500 I'll get the plates (which they sell seperately) & make the rest I reckon.
B&Q here I come
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Direct Link To This Post Posted: 18-October-2005 at 17:21

Simple really, the best discs are the standard EVO items but your fade is the fault of whatever pads you're running. I've tried standard and EBC red but now I've got Pagid yellow and they completely wipe the floor with the others. Full race pad, but they still work from cold, last a lifetime (ring 24 hours without pad change), don't fade, not much dust, oh, and they cost a packet...

Make sure you do something with the rear pads as well, they won't be able to keep up with a decent front set up (I have the cracked pads in my garage to prove it).

With the discs you just need to look at the facts. Cross-drilled? All about looking nice and shiny and will just crack with hard use. Don't see many modern race cars with cross drilled. Grooved? Definitely worth it on the track to clean the pad. Lots of race cars use these. Look nice and shiny too but will just shorten pad life for road use and make lots of noise. Floating? Always a good bet, prevents warping helps cooling. Looks trick in a 'if you know it's there' kind of way.

So if you want to impress your mates then any of the drilled/grooved aftermarket stuff is great. If you want the car to simply slow down as quickly as possible then EVO is the way to go.

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Direct Link To This Post Posted: 18-October-2005 at 17:38
Cheers Pooky, as ever, you've been there & done that
As I've got a baby & an M3, don't have a life so not too many mates to impress, lol, so it's all about the stopping ability.
Thought the evo discs were the way forward, but best to check before spending.
Are there two versions? Late & early?
Also, AST Suspension (guys that did the EVO mag car) reckon Pagid black are the way forward - anyone ever tried them? Or stick with yellows?

By the way pooky, what did you change on your interior to shed weight - I'm thinking of taking out the leather seats & fitting lightweight buckets & a cloth rear (to hold baby seat)
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Direct Link To This Post Posted: 18-October-2005 at 17:50
Disc options from German, French & Swedish (https://secure.gsfcarparts.com/shop)
B62026 BRAKE DISC-VENTED LEFT E36 M3 92>98 LH £38.25
B62027 BRAKE DISC-VENTED RIGHT E36 M3 92>98 RH £38.25
or
B62028 BRAKE DISC FRONT LH E36 M3 3.2 3.2i 236kW S50 95>00 £65.00
B62028A BRAKE DISC FRONT RH E36 M3 3.2 3.2i 236kW S50 95>00 £65.00
No pic's on their website to spot the differences
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Direct Link To This Post Posted: 19-October-2005 at 03:12

I've just bought some discs from euro car parts, they're listed as genuine 3.2 discs, there wasn't early/late versions.

A few other points from my experience, remember the discs are handed left and right as the internal vanes need to point the right way. Clean the hub with some sand paper to make sure there's no rust and the discs run true (otherwise the discs wear with DTV - disc thickness variation - and judder like you wouldn't believe). It might be worth replacing the allen bolts that hold the discs on as they tend to round off (had to drill one of my old ones off last week). Also really clean up the pad carriers otherwise they won't be able to slide properly and the brakes bind on (and you look a prat trying to drive the car off the ramp with the brakes stuck on...).

If you do the hoses then everything is a doddle except for the two (one each side) that attach at the front of the rear trailing arms. They seem to sit in the line of fire from crpa off the rear wheel and both mine where stuck solid. Ended up having to cut the original pipe and join some new section on using adapters and so on.

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Direct Link To This Post Posted: 19-October-2005 at 03:50
Originally posted by M3PSM M3PSM wrote:

Cheers Robbie, they'll do the trick but at $500 I'll get the plates (which they sell seperately) & make the rest I reckon.
B&Q here I come


I was looking into that backing plate thing for the E30 and decided to modify the stock plates. All you need is a piece of pipe to attach the flexible hose to.
Imagine the process of installing the turner plates.
You will have to CUT the BMW plates to get them off or remove the hub --> new bearings!
If you cut the backing plate to get it off, why not in a way that you can re-fit it?
I have used a dremel with a samll cutting disk and just removed the back around the hub.

cut lines:


cutting:


section removed:


tidy the edges a little and you can re install the plate.


With the plate off you can cut a hole into it and attach a piece of pipe top hoseclamp the flexi pipe.
Maybe not as elegant as carbon baking plates, BUT 500 notes cheaper!
Another things which makes me thinking with the shorter turner plate is the fact that the steering arm ball joint isn't covered by the backing plate anymore and fully exposed to the heat of the brake disk. Might not be a real issue for a weekend car, but I am not sure of the long term effect of cooking the grease out of the ball joint. (at least this is the situ at the E30, don't know about the E36)

Sorry for this rather long post, but I just wanted to point the option out.

Edited by UweM3
E61 520d, slow and buzzy but my wallet likes the mpg.....
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Direct Link To This Post Posted: 19-October-2005 at 04:02
Cheers Uwe. I like the "save £500" part.
I'll get her on the ramps at weekend & see what I have under there.
Pooky, found the 3.2 genuine discs on Europarts so I'll order from there to be sure (along with the retaing screws). Cheers.

Paul
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Direct Link To This Post Posted: 20-October-2005 at 06:22
Pooky: Any tips on where to buy Pagids at a decent price?
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Direct Link To This Post Posted: 20-October-2005 at 13:57
Try Circuit Supplies or BG Developments, do a search for either and you'll find them on the web. You'll have to order by phone but they can give you some advise about what to fit.
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Direct Link To This Post Posted: 21-October-2005 at 04:11
Cheers mate!
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Direct Link To This Post Posted: 23-October-2005 at 05:05

i wouild use the EBC redstuff ceramic with there plain discs also grab some goodridge hoses form www.brakekes4u.co.uk order the lot form one place less hassle, but make sure you get the new ceramic pads "C" prifix on them dont let anyone fob you off with pads that dont have this prefix as they are the old reds........this whole set up is as sound as a pound

 

thanks

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Direct Link To This Post Posted: 23-October-2005 at 05:21

I have the following set up on my evo vert.

Black Diamond predator pads front and rear.

Goodrich braided hoses.

Ap Dot 5.1 fluid.

EBC Turbo groove/dotted (Not drilled) front discs.

Standard rear discs.

Braking is very good with little fade, but they do need to warm up to work well.

Not the best looking discs in the world i know but they are very good, and dont create that much dust cos im using hard pads.



1999 M3 Evo Convertible.

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