Really nasty dirty brake porn

[curlyks2]

Better pictures of those well bedded in discs. Look away now if you're of a sensitive brake disposition...

Ck.

[curlyks2]

[curlyks2]

[Skull]

[S2_Dave]

quick question.if drilled discs are no good,how come porsche and mercedes to name a few fit them as standard to their high peformance cars?

They're "perforated". The holes are cast rather than drilled, meant to reduce the potential for cracking.

[denniselbows]

looks like all the disc wear is one sided is your caliper on central?

[Fat Audi 80]

Look like should left those a little late!

[curlyks2]

looks like all the disc wear is one sided is your caliper on central?

Yup the calipers are on central. It's the inside faces that are super-worn. The other disc (used as a stand in the pictures) isn't quite so shagged, but it's still somewhat less than even.

Ck.

[curlyks2]

Look like should left those a little late!

Yeah it was a slightly nervous drive back from the garage where the original pictures (first post in this thread) were taken.

Ck.

[Fat Audi 80]

Are the insides of your wheels full of iron filings as well. I will look forward to trying to get those off...

[s2driveruk]

holy sh*t thats amazing. Never seen anything like that before Definately very strange wear to be so much on the inner face only, are the pistons all moving freely?

[volcano rs]

Said it before and I'll say it again, cross drilled discs are all show, Grooved are all good, x drilled no thanks!

I'll be replacing the x drilled on my car when I have some cash ( LOL ) to upgrade the front brakes.

if thats the case why do the best and fastest porsches have them ?

[s2driveruk]

if thats the case why do the best and fastest porsches have them ?

I have to say i have not ever been convinced that they dont work. In conjunction with directional vanes in the disc, they should work really well to provide some additional cooling.

If the performance drop was so bad using a cross drilled/cast disc then the likes of Brembo and Porsche etc wouldn't use them IMO especially not on a high performance car. I think the option of a wide diameter disc, the vanes and the additional cooling through the cast holes/cross drilling means you can reduce the weight on each corner as you can increase performance from a smaller diameter disc.

[curlyks2]

Are the insides of your wheels full of iron filings as well. I will look forward to trying to get those off...

Nope, it's just standard muck and dust inside the wheels I think, although there is quite a lot of it

are the pistons all moving freely

Yup. They weren't binding at all.

The Textars with plain discs were well wooden feeling.. I'd never do that again.

Glad it's not just me: tried textar pads, hated them, never again.

Ck.

[Flat on my back]

The same on both disks?

Most wear on the inside edge...means the inside pistons have been doing all the work, or the sliders are seized

Keep a very close eye on disk wear...