I was data logging some WOT runs today in the LT1/T56 RX7, when during a 6000 RPM 2-3 clutch drop, it produced a loud BOOM! followed by some scattering of parts on the highway behind me.

The clutch pedal stayed on the floor, and she ground 3rd when I tried to put it in to see if the gear was shot, so I'm fairly sure the tranny is OK. The drivetrain is locked up, she won't turn over. With the engine off, goes into all gears and reverse fine.

I checked underneath, nothing obvious, no fluid anywhere, no holes anywhere.

So I am about 85% sure I have grenaded the clutch. This is my first stick car, all the others were trucks, so I'm by no means an expert. The clutch is quite probably OE from 95, since the tranny is a salvage yard piece with about 70K on it.

If it is as I think the clutch, what do you folks recommend for a better than stock replacement for around 330whp?