^^ I'm pretty sure all these questions are answered in the first couple posts, please read it again carefully for your answers ... Here you go anyways....
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Originally Posted by 37Z
What is the rotor hats made out of -(front and rear)?
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Both front and rear rotor hats are made of 7074 Aircraft grade billet aluminum, then is hard anodized
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Originally Posted by 37Z
Is the rear hat designed for the parking brake?
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Yes, it is and works great
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Originally Posted by 37Z
What is the inside/outside diameter of the rotors?
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The front is 14" OD, 8" ID The rear is 13.8" OD with a 8.378 ID
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Originally Posted by 37Z
Can you get the rotors without slots or cross-drilled holes?
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Sure, if that is what you want
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Originally Posted by 37Z
Are are the floating rotors attached to the hats?
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The rotors are attached to the hats with aircraft grade stainless steel alen bolts, T-Locks, and locking fasteners
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Originally Posted by 37Z
Do they need to be wired to prevent the bolts from loosening?
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No need for wire tieing
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Originally Posted by 37Z
10:1 dead/unsprung weight seams overstated IMHO. Were did you come up with this ratio?
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Well first off we are dealing with rotating & unspring weight here, not just unsprung and not just rotating. The ratio is approximately 3 to 1 for unsprung weight vs static weight and approximately 10 to 1 rotating weight, like I stated.
Most 18-19+ wheels depending on where the mass is on the wheel (moment of ratio), is about 10 to 1 (as a rule of thumb) static weight vs rotating wheel weight. That rule of thumb of 10 to 1 has been used by racers for decades. Since these rotors do not carry the same mass in the same area as a wheel does (moment of ratio/ inertia) but is further in twords the axis point, it is a close ratio estimate to say 8.9 to 1 or so.
Using this approximate ratio, it is safe to say that adding these light weight rotors as apposed to the stock Akebono's is roughly 26+ pounds lighter (static weight). Multiply that by the estimated 8.9 to 1 as that of static weight and you get about 231 pounds.... 26 lbs x 8.9 = 231.4 lbs that the car should/ will react lighter to acceleration, braking, and corner G loads.
That my friends is a sizable advantage, to say the least.
