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What is the general feeling about the Zimmerman (ECS) cadmium plated rotors?

Old 01-02-2006, 10:35 AM
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Default What is the general feeling about the Zimmerman (ECS) cadmium plated rotors?

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I've had them on my A4, now have them on the S4 and am not sure I really like them. I can't seem to get the brakes as firm as I would like, even in comparison to the 01.5 1.8T we have, those brakes stock feel firmer than my S4s.

Any thoughts?
Old 01-02-2006, 10:45 AM
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heard nothing but good things about them.
Old 01-02-2006, 10:49 AM
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Default So I should keep looking for root cause???

I did two thourough bleeds, with ABS pump cycling. I have new pads, new rotors, plenty of bedding done... curses!
Old 01-02-2006, 10:50 AM
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what's the problem?
Old 01-02-2006, 10:53 AM
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Default I know I've read quite a few posts about ECS rotors quickly warping, however...

not sure whether they were in reference to the Zimmerman Cadium ones or not.
Old 01-02-2006, 10:57 AM
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Default Is it all warping or pad deposits and needing frequent bedding?

I have ECS slotted/drilled rotors and I need to bed the pads every few months. They are the PBR/Axxiss Metalmaster pads. There is vibration in rotors under light pedal pressure. Then a good pad bedding session pretty much sets the rotors back nicely and I'm OK for another few months. I have never had to bed like this with any other rotor/pad combination and I have run these pads on other rotors before.
Old 01-02-2006, 10:59 AM
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Default you don't have much to work with using stock size rotors and calipers (even with track pads).

the brakes simply can't take the abuse at the track.

I used slotted rotors, SS lines, Motul fluid, track pads, and I still was able to get them to fail.

if you never see the track, stock brakes are plenty suitable.
Old 01-02-2006, 11:05 AM
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Default How does the cadmium plating last over time. After all, the brakes work on the principal of friction

and friction wears the rotors away.
Old 01-02-2006, 11:09 AM
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Default Well like I said, just not firm in the pedal feel...

Like I said I just drove my parent's 1.8T Avant and those brakes feel so much more positive than the ones on my S4.

I am running bobcat brakes FYI, and am thinking I want a more assertive pad. I also run Motul RBF600 fluid.

Guess I could get SS lines, but I'm not sure how much those help... I had a leukwarm experience with my A4, so.
Old 01-02-2006, 11:13 AM
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Default cycle the ABS pump and bleed them again....make sure the pedal doesn't go to the floor.

SS lines will help a little, but your brakes should be OK.

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