Exedy FTW! The R33 GTST we built primarily for drags had a brilliant hyper single in it up until we ran slicks and caused the clutch to slip. It had 450hp at the bags and managed a PB of 12.6 shearing a driveshaft somewhere along the track.
Personally I would never have a ceramic based clutch. I thank MEC2402 for this knowledge !!! While ceramic is very grippy due to its high friction coefficient, it has an inherent weakness in its inability to resist stress propagation. Once a concentration of stress forms in say a pit in the pad or some other point with a tight radius, it will propagate very quickly when loaded (ei. dropping the clutch, too many revs) and result in a mess (think BOOM type mess). This is fine for a track car but for a regularly street driven car, organic with as many dampening springs as possible (personal preference I guess )
We will need pics when you open it up! Picsorban!!!