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Steve thanks. I did not understand there was different classes.
I guess SP911 is different that the PRC 911 spec class, PRC-GTS, or old Toyo cup class.
They had/have unlimited brakes. I guess the new SP911 class that was an out groth of this much have the rotor restriction you note.
I thought I had heard the Toyo Cup cars were converting from big brake set ups to Carrera rotors for better acceleration that came with lower rolling weight.
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