Massive Brakes!

[stuartgallafant]

Stu i take it these are the ones. You'll need the carriers and if they don't interfear with the bolt holes you'll still need to get some brackets made.
I've knocked some up out of MDF for now
Any more on offer or the chance to borrow them so i can have a measure up ?

matt, what do you mean by interfering with the bolt holes?

i should imagine my mates dad could knock me up some brackets.

just to clarify, these will definately be useable with TT discs and 16" azev wheels?

what M/C should i use? 25mm 7 series one?

[Martinaston]

The center piece of the caliper carrier gets in the way of the bolt holes on the hub on mine, You should be ok if your using the 312mm discs.
As to weather they fit the only way to be sure is to put them together

As for the master cylinder, no idea. It will depend if you're keeping the original rear calipers or upgrading them as well and if you have ABS.

If you know someone that can make the brackets let me know

[stuartgallafant]

matt, the piston diameter on these bad boys is 60mm and the master cylinder used is 28mm. i was thinking of using either E30 M3 rear calipers or even Z3 M coupe rear calipers

therefore, i was thinking about using the 25mm master cylinder from the 5 series/7 series, discussed earlier on in this thread

i also need to buy caliper carriers, which are an unbelievable £126+VAT, EACH!!! then on top of that, i'll have to buy discs, get them machined, get the brackets machined, and while i was there, i was gonna replace every single pipe/line in the brake system, using braided hoses where necessary

i dont have ABS, so i dont need to worry about that.

i dont know what size discs i'll have to use for my 16" Azev A's

any help will be appreciated

[Martinaston]

Biggest ones you can get under there i guess, have a look at the Audi sets. You need a front set from a rear wheel drive car because the 4WD ones have too big a hole in the centre.
For the carriers try a set from an E32.

[stuartgallafant]

more than likely gonna use Z3 M coupe calipers, but we havnt had one in for a while, so i cant measure up!!

what M/C do i have to look out for?

also, what year Audi TT discs?

[stuartgallafant]

right, i've decided to go for E30 M3 rear calipers and Z1 discs at the rear

can anybody remind me of the master cylinder i need, or will i be able to us the standard 22mm one?

[Martinaston]

I'd say go with the 25mm master if you use 60mm pistons up front.

[stuartgallafant]

from what car matt?

how's your conversion anyway?

[stuartgallafant]

i was changing a front set of Z4 3.0i brakes this morning, and decided to have a measure up against my E46 M3 calipers.

the calipers are of, what i can see, identical size, however, the M3 calipers use a 60mm piston/28mm m/c and the Z4 uses a 54mm piston with a 22m m/c (22mm is the same as the E30!)

the M3 calipers will fit straight into the Z4 carriers. the Z4 carriers are made to fit around a 300mm disc.

the 2 threaded holes on the carrier that get bolted to the hub are, centre-to-centre, 122mm (roughly!!) apart.

also, the Z4 discs look like a very similar offset to the E30 item

can anybody please tell me if this info is of any use? as i was wondering if i could simply use Z4 carriers without having to buy adaptor brackets

cheers guys

[jmc330i]

the 2 threaded holes on the carrier that get bolted to the hub are, centre-to-centre, 122mm (roughly!!) apart.

i was wondering if i could simply use Z4 carriers without having to buy adaptor brackets

Just dont a quick measurment of some spare calipers that were on my touring. The mounting holes (the threaded ones) in the carrier are roughly 90mm apart centre to centre

[Martinaston]

from what car matt?

how's your conversion anyway?

On hold. i bought a convertable last week so its taken a back seat for now while i sort that out. i got as far as making some brackets out of MDF to check the clearances, i still need to figure out what kind of bolts to go for and then they can go to the shop (depending on price).

As for the master cylinder i'll try the E34 25mm one but i'm keeping the ABS so i only need the two output's. I'v no idea if they do a non ABS version.
I like the sound of the 28mm master but i think that could be overkill
you could try it but it would depend on the size of your rear pistons

I think any carrier other than the standard one will need some kind of mod for the e30 hubs.
Can't someone just make better struts with bigger bearings and more throw on the carrier holes

[stuartgallafant]

so an adaptor bracket is definately in order then!

im tempted to just buy the 300mm.de ones and scourage the land looking for carriers, as im refusing to pay over £100 a side for them!!

re: the m/c from the 5. if it only has two outputs, and i have no ABS, will i just use 2 split pieces to run 4 brakes?

[Martinaston]

The rears just a T piece thats already there above the diff.
But if you put one on the front i'm not sure it will pass an MOT if its spotted. Even if it does i wouldn't like to use it as a daily driver because if you get a leak on the front you loose all the brakes in one go

[stuartgallafant]

so what are my options then? if possible, id like to use the split system still of n/s/f + o/s/r and o/s/f + n/s/r.

or, i'll just have to put a bloody ABS system on there!!

[Martinaston]

You could do it that way (the old fashioned way) but then it could be a bitch to get the front and back balance spot on unless you transplant a whole system. But then you could still run into problem because the rear of an E30 is probably lighter than say a Z4 or an E46. Only way to tell for sure would be to give it a try, but that could end up in a very messy experiment

You mentioned some equations a while back for calculating leverage and pressure, any chance of posting them up ?

[stuartgallafant]

You mentioned some equations a while back for calculating leverage and pressure, any chance of posting them up ?

funny you should say that matt, as i found all these the other day and left them out so i could stick them up on here!!

i'll post 'em when i have a spare minute!!

to be honest, i think i'll just use the standard master cylinder with the E46 M3 brakes up frontt and the E30 M3 brakes at the rear. i'll see how that goes and if it doesn't feel right, then i'll have to think of something else

[lenny-d]

sorry kinda of topic but does any1 have any info on a wilwood 280 kit

just bought one off the zone but can't find out any info about new pads

cheers
lenny

[stuartgallafant]

go to the web site, wilwood.com or .uk

[lenny-d]

tried that can't find any listin for any e30 kit other than an m3

sorry turbo-brown hooked me up east coast custums stylie

cheers anyway
lenny

[stuartgallafant]

google? rally design sell stuff for the E30 kit

[stuartgallafant]

Matt, any news mate?

[Martinaston]

No sorry mate, i've been enjoying the sunshine

[stuartgallafant]

i havnt done anything either!!! let me know when you have some news

[chris_m50]

Hey guys. I work in a cardiff based car spares company, and i have been able to get hold of blank Audi TT discs I have now found a company that cnc machines them, just raising the money for the calipers and brakets (anyone got sum made and not got them from germany??!! ) and then I will see how they fit.
Has anyone got the dimensions of the audi tt disc once machined?? the center hole is 66mm?? and the depth of disc is 25mm, anything else??
then if anyone would like a set and its cheaper than getting them from germany then good good! As this avoids the multi-hole problem that is deturring so many people.
thanks
chris

[ed325i]

Look in the group but section for the brakets.
That is a good idea using blank discs so there will be less holes.
The discs need 1mm taken from the centre hole that is all that need doing.

[chris_m50]

Cheers ed. Still to cost up the machining, who have other people used??

Also, what section is it in?? Any chance u gotta link
Cheers
Chris