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Originally Posted by SG4247 You have a ton of heat checks (micro cracks) in those rotors! Might look them over closely... I know, i saw them too. Not too much

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Old 08-24-2020, 01:56 PM   #16 (permalink)
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Originally Posted by SG4247 View Post
You have a ton of heat checks (micro cracks) in those rotors!

Might look them over closely...
I know, i saw them too. Not too much more life in these rotors. Thanks for looking out
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Old 08-25-2020, 05:51 AM   #17 (permalink)
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Originally Posted by thekinn View Post
I know, i saw them too. Not too much more life in these rotors. Thanks for looking out
Surface cracks, like those, just need to be monitored. They don't mean the rotor is significantly damaged or needs replacing soon.

https://ebcbrakes.com/articles/surfa...e%20adequately.
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Old 08-25-2020, 08:13 AM   #18 (permalink)
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Originally Posted by Cyber370 View Post
I wonder how much of that is due to the fact the discs are slotted?
Good question..i noticed that theres much more deposits right after the slot. Like it shaves a bit off and then those shavings get baked right on.
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Old 08-25-2020, 08:54 AM   #19 (permalink)
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Endless XM72 pad rear - with 10k miles.
Nismo front Pad - with 15K miles.
Z1 rotors.

The fronts have never looked any different than they do now.

The rear have had some hot spots, in the very beginning of their service life.

Over 150 stops from over 100 mph at the dragstrip.

I know that is not the same as a road course use, but I am pleased so far. The fronts have just a little steering vibration so its about time to turn those.

I bought solid fronts for the reason that they are easier to turn than slotted.
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Old 08-25-2020, 11:41 AM   #20 (permalink)
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Originally Posted by 2011 Nismo#91 View Post
Surface cracks, like those, just need to be monitored. They don't mean the rotor is significantly damaged or needs replacing soon.

https://ebcbrakes.com/articles/surfa...e%20adequately.
Yes, I should have further clarified in my reply. Due to the rotor thickness - they do not have much more life in them.
Thanks again though. Good to have this info in the thread too.
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