Take a look at these rotors_opins?
06-07-2012, 10:54 AM
#16
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My new set of Girodiscs look exactly like that after one track weekend. I am using Pagid yellows up front and blacks on the rear. I did not see this pattern on my last set using the same pad set-up. Braking performance was as usual but more squealing from the pads. I started wondering if the rotor material was somehow compromised.
06-07-2012, 06:20 PM
#18
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06-07-2012, 07:34 PM
#20
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They look overheated given the color change. Could it be a fat car running four 50# plus-sized tires and rims driven with 600 hp is beyond rotor design limit? It looks like metallurgy and manufacturing technique played a big part here.
06-07-2012, 07:53 PM
#21
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Yes I have a fat car.....but it's my fat car.
I'll share this......I extended invitation to both Girodisc and Cool Carbon to offer their opinion.
They both had one thing in common.......they hadn't heard of each other....had no experience with that brand/product line.....etc
.
Anyway...Giros suggest was have the discs turned/skimmed to clean them up or sand them down with 100 grit sandpaper and then re-bed.
I'll share this......I extended invitation to both Girodisc and Cool Carbon to offer their opinion.
They both had one thing in common.......they hadn't heard of each other....had no experience with that brand/product line.....etc
.Anyway...Giros suggest was have the discs turned/skimmed to clean them up or sand them down with 100 grit sandpaper and then re-bed.
06-08-2012, 09:21 AM
#22
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06-09-2012, 10:17 PM
#23
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For what it's worth, I'll pass this on.......spent much of Sat. sanding down these rotors.
Right now.....I'm runnig w/assuption that this is surface.....not metallurgical, as a good share of what is visable could be knocked off w/my work..
So....I'll throw some OEM pads on......and bed them in, run them for a week or 2.....and if all looks good, I'll go back to Pagids for next track in a few weeks......either Yellow/Yellow or Blk/Yellow.
And w/this assumption....I'm also saying that my experience on Cool Carbons would tell me....that they may be a very good pad for the street, autocross, etc.....but, on the track, in this application, I was simply expecting too much of them.
Right now.....I'm runnig w/assuption that this is surface.....not metallurgical, as a good share of what is visable could be knocked off w/my work..
So....I'll throw some OEM pads on......and bed them in, run them for a week or 2.....and if all looks good, I'll go back to Pagids for next track in a few weeks......either Yellow/Yellow or Blk/Yellow.
And w/this assumption....I'm also saying that my experience on Cool Carbons would tell me....that they may be a very good pad for the street, autocross, etc.....but, on the track, in this application, I was simply expecting too much of them.
