I noticed in the SCCA GCR's in the Touring class that "Alternate Rotors" are indicated in the Z06 Tech Spec Line. Since they carry GM Part Numbers I was curiuos as to the difference between them and the stock Z06's. Are these ones "race cut" or cryo'd or heat treated. Are they the same size.
One little birdy told me the only difference is the listed ones are made in the US and the Stock ones are made in Brazil and will fall apart under severe use. He suggested taking the listed ones and having them cryo'd and if the rules allow "ball milling" them and slotting them. I asked about cross drilling and he advised not to as they will stress crack and come apart. The stock ones will do that on their own with out any help at all!
What are your thoughts Y2K?
One little birdy told me the only difference is the listed ones are made in the US and the Stock ones are made in Brazil and will fall apart under severe use. He suggested taking the listed ones and having them cryo'd and if the rules allow "ball milling" them and slotting them. I asked about cross drilling and he advised not to as they will stress crack and come apart. The stock ones will do that on their own with out any help at all!
What are your thoughts Y2K?