Praise or complaints for DBA brake discs ?

[h100vw]

I've had problems with both DBA and RDA.

-Warped- Brake Disc and Other Myths

After reading this, I am more inclined to think there's a possibility of mismatched abilities between pad and disc.

Had this myself on my S3 at Lakeside, always after going particularly hard. The rumble always goes away after a few days on the road. So I don't reckon its heat related, as it would go away as soon as they cooled down. Yet remained for a bit long after I left the track.

That was with the QFM A1RMs, trying to think if I have been back with the Remsa's in?

Anyway, I think the weight of the car creates more heat and probably it needed a better pad. I know that EBC recommend a higher spec pad for the S3 over the mk4 Golf GTI. Loss of cold response would be a compromise on the road.

Gavin

[Transporter]

-Warped- Brake Disc and Other Myths

After reading this, I am more inclined to think there's a possibility of mismatched abilities between pad and disc.

Had this myself on my S3 at Lakeside, always after going particularly hard. The rumble always goes away after a few days on the road. So I don't reckon its heat related, as it would go away as soon as they cooled down. Yet remained for a bit long after I left the track.

That was with the QFM A1RMs, trying to think if I have been back with the Remsa's in?

Anyway, I think the weight of the car creates more heat and probably it needed a better pad. I know that EBC recommend a higher spec pad for the S3 over the mk4 Golf GTI. Loss of cold response would be a compromise on the road.

Gavin

Hmm, interesting theory, though after discussing it with a couple of brake specialists, where I sometimes take the discs for machining, they both say the same; a poor quality materials and use of too much of the scrap metal in the cast iron is most likely the cause. Well at least the discs that come of the normal street cars. I have also checked few times various brake discs in my lathe just to see the warp, and there were no deposits on the surface.

[Sunny43.5]

I used the DBA 4000 series heavy duty rotors on the last change along with Remsa pads very happy , I did make sure to clean the hub surface as even a small amount of dirt can cause the discs to be out of shape so to speak from day one this happened on the previous set . Apparently if their is dirt in between the two surfaces you will get incorrect pad transfer during the bedding in phase and it gets progressively worse over time .

[Syncrotek]

Thanks again everyone.