Best place for brake discs?..

Ive tried all the usual (M and P etc) but was thinking maybe someone has a
suggestion for a better deal...

Needed for a litre fazer...

 

Spike fumbled, fiddled and fingered:

attached to the wheels usually

--
Steve Parry
K100RS SE & F650
and a 520i SE Touring for comfort

(not forgetting the SK90PY)

http://www.gwynfryn.co.uk

 

Never used them but might be worth a try...

http://www.brakes4u.co.uk/

 

Oh aye, indeed. Top geezers and geezeress'. Sorted me out with FOAD
grooved and dimpled discs, front and rear, plus the "Redstuff" ceramic
pads for about a third the cost of genuine Audi bits.

With the able assistance of his Pipness (read: he did it) I now have
fade-free stopping.

Definitely worth a shot as they're quite near the factory I believe...

 

I thought you were sticking some uberbrakes on it, anyway?

If I had the dosh, I'd have gone for these:
http://www.amdtechnik.com/product.details.cfm?ProductID=645&VariantID=27
&ReferenceID=3305

However, that was one chunk of money I really couldn't justify, so, a
compromise was sought. The guys at AmD (above), /really/ know their
shit, especially with respect to performace AWD vehicles like the S3.
If they recommend EBC, then I buy EBC. They did and I have

Greenstuff pads, sir.

 

I'm getting slightly mixed up with all these numbers in different threads.
Let me get this straight: is the 740 a car or a phone?

 

Indeed. In my case, the weasels at the Audi stealership had informed me
my brakes were fucked (it transpires they weren't) and I needed new ones
at a cost of around £1500. Bollocks to that.

Funny thing is, brake designers (at the high end of stuff) are
increasingly looking to going the other way...

Almost exactly my reaction and believe me there are /far/ pricier and
only moderately more useful systems out there from Porsche to Brembo to
Lockheed/AP (in order of gob-smacking price).

It's basically the performance rating based on use, wear rate, etc. The
"compound" if you like of the pads. The Fast/heavy Street ones are
Greenstuff and are recommended as a replacement for OEM pads without
having to upgrade the discs. Nice bonus is that they produce a /lot/
less dust than even the OEM pads.

Redstuff (like mine) are the Fast Road/Trackday type pads and work best
with performance discs.

Yellowstuff, incidentally, are the new Fast-Road/Race pads -- uber high
temp resistance but fast warm-up and good initial bite. Haven't heard
much about them, yet and brakes4u don't list them, yet. But I can't see
them selling many more Reds if these new Yellows are as good as
reckoned.

Still think you ought to try the Greens as a quick and cheap upgrade.

Here: http://www.brakes4u.co.uk/categories.asp?cat=5030

That should be the page for all 740s (I couldn't remember what yours
is). Click the appropriate link and window-shop away.

 

bwahahahahahahaha

 

platypus scribbled:

WCs sofas sperm count. HTH.

 

I thought it was a printer.

 

Hmm, the ones shown appear no different from those I've got and mine are
*not* drilled; they're dimpled/slotted. There was an explanation for
this but I'm buggered if I can remember why...

Incidentally, the description for both yours and mine is the same, just
different part numbers.

I'd still go for the Greenstuff pads as a quick fix if your discs are in
good shape. My front discs were approaching the wear limit so would
have needed replacing soon anyway, otherwise I'd have got the
Greenstuffs until I killed them and /then/ put on new discs.

 

Drilled discs used in the wet have the potential to fade because the
water in the holes can turn to steam and push the pads away from the
discs. Apparently.

Personally I think the above theory is a load of old bollocks but the
guy that explained why some discs are slotted and some drilled plus
why some are drilled and ventilated used to design brake systems for
GP karts and motorbikes so he might have known something.

 

It appears to be many things:

http://www.amazon.co.uk/exec/obidos..._electronics-uk_9385788_2/026-8242485-0623626

104, in fact.

 

So do I. I mean, the steam-filled holes are only going to be against the
pads for a nanosecond before they carry on rotating and all the steam
will simply vent to atmosphere.

People started drilling discs because they thought it improved
wet-weather performance. Allegedly, it sometimes made things worse
because the holes cated as reservoirs. I don't buy that one, either.

Now (apparently) they drill (or slot) for lightness, and also because it
helps prevent squeal.

 

I always thought they were drilled:

1) to remove grease and grime from the disk.

2) They were drilled at "Random" intervals so that the disk has no resonance
and hence is less likely to vibrate?

I have no idea why I have thought this or where the info comes from so is
probably bollox.

 

It's bollocks on both counts. And think - if you drilled oles at random,
wouldn't you end up with a seriously out-of-balance disc?

 

The Older Gentleman scribbled:

If the discs were those ventilated ones, which look like two discs
connected together by the ventilation vanes, don't the holes go right
through, and so any steam pressure would escape by coming out of the
vented gap?

I can see the lightness thing, and I suppose it also has the same
effects as the wavy discs, I think one benefit of those is they prevent
glazing of the pads due to overheating?

 

Thought as much

Hadn't thought of that but it is a good point. But the holes are not evenly
spreed around the disk are they?

 

That was the original reasoning behind ventilated discs. Slotted discs
were the next evolution when it came to clearing water but imo the
best way to clear water is to keep the discs hot.

The guys I worked for used to sell different calipers for wet weather
use as well as a big range of discs/pads but changes like that only
really count in motorsport and are pointless on the road.

 

Some aren't, but if you look closely, you'll see that they're drilled in
such a position that the disc is still evenly balanced and weighted.