Ok I am now in position to have a better clue about the clutch and flywheel mod in my d14.
As you remember I recently swapped my stock clutch and flywheel for a 1st stage exedy clutch along with the 3kg fidanza flywheel all meant for the d16 engine meaning the bigger version.
I am impressed by the change. Previously in every quick change in high revs you could feel a slight delay,and slack feeling of the clutch until you start accelerate again. This is long gone now. Actually the clutch is so strong that you can feel the wheels grabbing in 2nd and 3rd change and moving up and down.
The clutch pedal is so strong and heavy that at the 1st times i couldn't start smoothly
Now i got used to it, but everytime i drive my Peugeot i think it has no clutch hehe
As for the flywheel it has improved the acceleration and the feeling of torque strangely. What I mean is that when in straight line it needs even less throttle to accelerate and i can use my 4rth gear from 1000rpms without any hesitations. 5th gear with 50km gives no problem accelerating.
I haven't noticed any unpleasant effects only that sometimes revs drop and you think the engine will go off and then revs come up again. You need to adjust your driving style to this and then you get used to it without any problems. In the beginning the engine went off twice but not any more.
So as for now I am very satisfied with these mods.