Is this brake rotor legal in STO?

[titanium]

I came across the Turbine Brake Rotors at the PRI show.
(My 1994 STO Mustang runs the 14in rotors from a 2007-up GT500)
http://www.turbinebrakerotors.com/steel_rotors.php
The STO rules say a 'ferrous' rotor is required and 1 or 2-piece.
(The rep at the show says a magnet will stick to the friction surface)

[Matt93SE]

I'd be curious how those perform. As for legality, I'd say it's a gray area, but technically it would be legal as the rules are worded-- a magnetic would stick thus they're ferrous.

I would also be curious what a set of regular 2-pc rotors with a lightweight disc weigh in your size-- the 12" rotors I have from Coleman are under 12lb each. You may be splitting hairs at that point on weight & performance..

[Greg Amy]

From the GCR:

"Ferrous – An alloy containing more than 50% iron."

[titanium]

Now for the part I left out.
The "center" of the rotor, (where the cooling vanes are), is not made of the same material as the friction surface (stainless steel) or the hub (aluminum).

Still legal????

[Greg Amy]

A good question. I suggest that aluminum rotors hats are intended to be allowed, but that's not what the rules say. Submit a request for correction at the below link and we'll pass it through the CRB for clarification.

http://www.crbscca.com/

[Matt93SE]

He's not questioning the hats.. He's questioning the legality of a stainless steel friction surface with a (ceramic?) insert between friction surfaces.
Strange concept, but if it works.....