Castor said:

Tribology division (Ret) reporting. (Ex Bendix lorry spring brakes R&D yonks back)

Grey cast irons (from distant memory) were all much of a muchness in terms of coefficient of friction with what was then mainly asbestos based materials.

The degree of squeeze due to the mechanical laws of hydraulic ratios, is going to be exactly the same irrespective of who cast the caliper.

I therefore conclude that the only meaningful change is going to be in the pad material.

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Datatek said:

Someone had ****part discs with the holes out of line a while back. Personally, if it rotates or reciprocates I would not touch ****part.

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Datatek said:

I just wondered, as some cast material seems much coarser grain then others, so I thought it might be a bit like sandpaper, coarser = more friction & faster wear.

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Littelwill said:

Hasn't there been discussions about brit part discs warping in a short space of time?

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JamesBB said:

just checked the brakes out, man what a difference. Firm and quiet (no hissing from the pedal or ABS whirring away every other press on the pedal.


It is looking like the Delphi discs and EBC pads now, best of both worlds.

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wammers said:

Any disc will warp if not bedded in properly.

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Castor said:

Heat cycling will allow the cast iron to stress relieve into that final shape.

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Druim said:

I can recommend Mintex discs and pads sets, installed all round a year ago'ish, works a treat

Brought mine from Paddock

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wammers said:

Being the last of the late brakers with new discs and pads also sitting at the lights with the footbrake on after a heavy stint of braking with new components doesn't help a lot. Light progressive braking for the first 250 miles. Simples.

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