finding non drilled discs

[227bhp]

Yes you're right on 345 diameter, AMG Sports package is smaller for some reason.
DF4341S is a TRW, NBD1270 is a National Parts (cheaper), they're all drilled though.

[tapkaJohnD]

Dave Brand said:

As the disc moves away from the pads the drilling is exposed, so the water/gases can escape.

Won't they do that anyway, as the disk rotates?

[Ares]

TooMany2cvs said:

Ares said:

And I still say too much braking power/performance can never be a bad thing.

Will it lock the wheels? Then you have as much braking as your tyres are capable of delivering.

FFS, the drums on my ol' Landy will lock the wheels.

ABS?

[TooMany2cvs]

Ares said:

TooMany2cvs said:

Ares said:

And I still say too much braking power/performance can never be a bad thing.

Will it lock the wheels? Then you have as much braking as your tyres are capable of delivering.

FFS, the drums on my ol' Landy will lock the wheels.

ABS?

Doesn't increase the amount of braking your tyres can deliver. It just lets go of the brakes when that grip's exceeded, then puts them on again.

[Ares]

jagnet said:

Ares said:

Extra weight? I rid more weight during my morning ste.

At over 3.2kg I don't fancy your diet much

The extra 30mm weighs an extra 3.2kg?

[Ares]

TooMany2cvs said:

Ares said:

TooMany2cvs said:

Ares said:

And I still say too much braking power/performance can never be a bad thing.

Will it lock the wheels? Then you have as much braking as your tyres are capable of delivering.

FFS, the drums on my ol' Landy will lock the wheels.

ABS?

Doesn't increase the amount of braking your tyres can deliver. It just lets go of the brakes when that grip's exceeded, then puts them on again.

Still stops them locking.

...and I still can't see how increased performance can be a bad thing.

[TooMany2cvs]

Ares said:

TooMany2cvs said:

Ares said:

TooMany2cvs said:

Ares said:

And I still say too much braking power/performance can never be a bad thing.

Will it lock the wheels? Then you have as much braking as your tyres are capable of delivering.

FFS, the drums on my ol' Landy will lock the wheels.

ABS?

Doesn't increase the amount of braking your tyres can deliver. It just lets go of the brakes when that grip's exceeded, then puts them on again.

Still stops them locking.

But having "more braking" doesn't reduce stopping distance. Shortest stopping distance is just before the wheels lock and ABS gets triggered.

Ares said:

...and I still can't see how increased performance can be a bad thing.

It isn't. It just doesn't make any positive difference, either. If the most braking you can use is 70% of maximum, what benefit is there in increasing the maximum so you can only use 50% of it?

[Trustmeimadoctor]

in the end i gave up and just ordered ATE discs and pads went for ceramic even though they font recommend using with non smooth discs. they were brembo discs i fitted before i just hope this time they dont warp

[jagnet]

Ares said:

The extra 30mm weighs an extra 3.2kg?

Yep, looking at Brembo's catalogue then 300mm v 345mm for a 28mm wide disc is an extra 1.6kg per disc.

[Mr2Mike]

TooMany2cvs said:

Will it lock the wheels? Then you have as much braking as your tyres are capable of delivering.

FFS, the drums on my ol' Landy will lock the wheels.

This is a fallacy. With the wheels locked the brakes are doing sweet FA, and dissipating no power. Good brakes allow a driver to hold the tyres on the verge of locking up, at which point the brakes are dissipating a lot of power and heating up quickly.

[TooMany2cvs]

Mr2Mike said:

TooMany2cvs said:

Will it lock the wheels? Then you have as much braking as your tyres are capable of delivering.

FFS, the drums on my ol' Landy will lock the wheels.

This is a fallacy. With the wheels locked the brakes are doing sweet FA, and dissipating no power. Good brakes allow a driver to hold the tyres on the verge of locking up, at which point the brakes are dissipating a lot of power and heating up quickly.

I love the way you say it's a fallacy then agree with it.

[Mr2Mike]

TooMany2cvs said:

I love the way you say it's a fallacy then agree with it.

I love the way you think I agreed with you because you dont understand the difference between "locked up" and "on the verge of locking"

[TooMany2cvs]

Mr2Mike said:

I love the way you think I agreed with you because you dont understand the difference between "locked up" and "on the verge of locking"

<points up thread a tad>

[Mr2Mike]

TooMany2cvs said:

Mr2Mike said:

I love the way you think I agreed with you because you dont understand the difference between "locked up" and "on the verge of locking"

<points up thread a tad>

TooMany2cvs said:

Will it lock the wheels? Then you have as much braking as your tyres are capable of delivering.

Marginal brakes may easily lock the wheels, and would be happy to keep them locked until the tyres go pop. The same brakes under sustained heavy braking could easily lose the ability to lock the wheels during the braking process. i.e. the ability to lock the wheels at the start of braking does not imply the brakes are as good as they can be.

[TooMany2cvs]

Mr2Mike said:

I love the way you think I agreed with you because you dont understand the difference between "locked up" and "on the verge of locking"

<points up thread a tad>

Actually, I was thinking more of...

TooMany2cvs said:

But having "more braking" doesn't reduce stopping distance. Shortest stopping distance is just before the wheels lock and ABS gets triggered.

Edited by TooMany2cvs on Thursday 30th August 08:48

[GreenV8S]

I find that having more pad speed and less pressure makes the brakes less grabby and easier to control around peak grip. If you have enough electronic aids that might not matter, but if the driver is controlling the brakes then having brakes which are easier to control can improve braking performance even if the smaller brakes are capable of locking the wheels and aren't overheating.

[PositronicRay]

I always thought my brakes were ok, 1800kg car 300mm front and 245mm rear. But the other day someone pulled out from a side road, I was doing around the limit of 50mph on the main road and blimey I wished I'd a bit more!!

Dry road, good tyres, managed to avoid a collision.....just.

[Kccv23highliftcam]

Long story short... having changed to Brembo sport disks and standard pads transformed the wet
/cold weather breaking in the quattro on the previous 408 mile commute!!