[S-G-Covin]

The thing I don't get is where you say you can hear and feel this (in your OP) while the clutch is engaged. I wouldn't assume a tranny/clutch problem could carry over when the tranny is disengaged...and with the clutch engaged the parts shouldn't be.

That leaves engine, wheels and suspension (I know, theres a lot of stuff in there). You said right side. Check again and let us know; front right side or rear right side. Could be brakes; could be bearings. Could be a belt scrapping(doubtful). Even the rear axle. CV Joint? I dunno; maybe and thats my best guess.

Could be a lot of things, even from the audio...but from your descriptions, I'm hesitant to say its the tranny or anything to do with it. Take that with a grain of salt, however. I've done tranny work on Chevy, Geo and a couple Fords. Never had an issue with a Porsche transmission.

But I don't see how that noise could be clutch.

EDIT: The closest thing I can recollect to that sound was when my El Camino's right front bearing went south. I got a similar scrapping noise and it was hard to pin down from the driver's seat due to-well-that big honking engine. But his wasn't happening at speed so much as in turns.