Nissan 370z manual startup problem
 

Hi, when starting and tingling the clutch on 1, there will be a knock, I do not know if it comes from a gimbal or if something is wrong with the clutch, for example, a two-mass flywheel, someone has no experience?
https://youtu.be/yj3-nxJ3uQI

My first guess would be to check your rear diff bushing. If you see a black stain of tears running down the rear subframe I would think you have blown the rear diff mount. Most common issue. They are liquid filled with some kind of jell. That is what the black stain is from.

Could it be the clutches? For example, a two-mass flywheel

Whatever it is, it doesn't sound right.

Video wasn't long enough, and it was too far away.