I used to do 3000rpm clutch-dump starts in my A6q when I was hillclimbing it. Thats essentially the exact same drivetrain as the factory S8 manual, and it took 210 diesel HP and 400 torques like a champ. I had to turn the ESP off though to allow it to light up the rear wheels
It wasn't very quick up the hill, but it was impressive off the line
I reckon there's a good chance the S8 manual I'm about to build will get some serious stick once the clutch is bedded in nicely. If not, I'm entirely prepared to try it on my own car when I get round to converting that
Certainly I'll be trying it in the FE biturbo which will definitely highlight any weak points...