I have a 2006 G35 Coupe 6mt and i have noticed some weird sound by the clutch pedal.

If i do like a pull 2nd to 3rd gear pull wot, and after i let off the gas i will hear rattling sound like metal by the clutch if i press the clutch in a bit very small amount, the sound will stop if i let off the clutch it will happen again. If i turn right at slow speed the sound is louder.

I will record it tomorrow cause my camera is dead, anybody had this before?

 

So i was able to replicate the sound, that weird rattle noise in the 2nd video, only happens after doing a shift from 1st to 2nd and if the tires hop.

In this video listen for the knocking type sound you might have to turn up your speakers, when i push a bit of the clutch in its gone, and to me it sounds different than clutch chatter.
clutch noise - YouTube


Now in this video i will be doing a quick shift from 1st to 2nd making the tires hop and then hearing a weird clutch noise, you will notice if i push a bit of it in its gone.
clutch rattle - YouTube