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Old 02-25-2021, 01:15 PM
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Alan C.
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Originally Posted by Seth Thomas
No the new rotors are not weighed but measured for density using this tool.

https://porsche.snapon.com/special-t...temid=45090042
Seth is correct on the 991.1 and .2 versions of the GT3/RS which is the forum we are on. I've watched my tech inspecting the rotors on my GT4, .1 and .2 GT3 using that tool.
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Old 03-01-2021, 02:59 PM
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What I also found interesting is how much the density numbers varied even on the same rotor?

Additionally the pictures above showed a maximum delta of 14, some of mine are as high as 22, I would have thought they would be more consistent?




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Old 03-01-2021, 03:56 PM
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ipse dixit
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Originally Posted by Westcoast
What I also found interesting is how much the density numbers varied even on the same rotor?

Additionally the pictures above showed a maximum delta of 14, some of mine are as high as 22, I would have thought they would be more consistent?

Were they measured off the car with the Carboteq tool?
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Old 03-01-2021, 03:58 PM
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Originally Posted by ipse dixit
Were they measured off the car with the Carboteq tool?
If you are talking about my post, this is a picture of one of my rotors currently on the car, I was simply commenting on the numbers and their relative range for wear as compared to the OP.
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Old 03-01-2021, 04:08 PM
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ipse dixit
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Originally Posted by Westcoast
If you are talking about my post, this is a picture of one of my rotors currently on the car, I was simply commenting on the numbers and their relative range for wear as compared to the OP.
They need to be off the car for the measurements to be accurate.
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