I just found that when I accelerating my S2K from 80KM/H the car will shaking from the back.
The shaking will become more drastic when I accelerating violently .
And it will disappear when I stop accelerating.
I don't know if there is any problem of the drive shaft or clutch?

 

more likely:
tire balancing
alignment
unevenly worn tires
slightly stuck brake/worn rotor
wheel bearing


less likely:
driveshaft issue
diff issue

if it was a clutch/pressure plate/flywheel issue you'd have problems slipping or getting into any gear regardless of speed and it typically makes bad noises at all times when the engine is running.

 

https://www.s2ki.com/s2000/topic/241...s/page__st__-6

 

Racemyghost is correct.

 

Thanks guys.

 

Actually it has the problem you said. No matter in which gear. Car will shake if i accelerating hardly.
And it will have bad noises when the car was running in any gear.3
Maybe I will check the clutch flywheel as well.

 

Check your diff mounts it will cause shaking if it's broken.

 

Likely the inside CV joints. A known problem on the s2000. Just had mine replaced last year on my 08 CR. Only had 40k miles and Honda warrantied the parts. Some older posts say you can swap left side to right side and vice versa and get more life out of the existing. I elected to go for new with the warranty. There are after market solutions that are improved over the OEM as well.

 

I wouldn't say improved, but definitely a decent alternative.

 

I had a similar experience with my '06 at 65K miles on the odometer. CV cups switched left with right; problem went away. Until you can eliminate the CV joints as the problem, do not chase the other potentials.