I'm with ted Im curious what the heat will do to the rotors and how they'll clearance accordingly seems like it would be too loose to me only good for a race or two before having to be torn down?

I'm still confused how coating the rotors in something doesn't solve the problem? Ceramics, iron, whatever...

They're using inserts in the apex seal grooves, but not the side seals. So they may still have a galling problem. I would have to agree though that TI is probably not the best material. I'd rather use a heat treated AL, or keep the outer casing a cast iron and make the guts out of a lot lighter material.

The side seals are constantly oscillating and are going to bind and gall the shit out of the side seal grooves. Not to mention the indifferent heat exspansion rates for the two metals. Side seals gaps are going to be the end of them.

If the side plates are indeed aluminum, then I completely agree with you. Aluminum has a 270% greater thermal expansion rate than TI...

Honestly, you'd be better off making the casing and side plates out of the factory cast iron, or stainless. Grey cast is 5.8, Steal cast is 7.0, high grade stainless is in the 5.5 range, TI is 4.8, AL is 13.0.

I would be fine if they made the bearing core out of TI assuming you still pressed in a factory bearing. It's not a friction part.