Hi Pierre,
The stock normally aspirated clutch will usually take up to ten to twenty percent more power. If you are using a flat flywheel a early turbo 240 clutch
is an upgrade. This clutch is rated for a 150lb ft of motor torque. If you need a strong clutch for a good price try checking out a Borg Warner Brute Power clutch. These are rated for 40 percent more torque than the original clutch they replace. That would mean the flat flywheel turbo clutch is good for over 200 ft lbs. That should hold for you.

Dave 82 242ti 279k mi.