RB25 Flywheel on KA24DE-Improperly balanced?

[PoorMans180SX]

Originally Posted by Kingtal0n

It can be out of balance but that should be obvious (vibrations)

Funny story. I bought a comp clutch for a KA that I bought with a bad clutch. After I installed it I wondered why the car had a shit top end and hated to rev. Later I learned that the pressure plate was drilled off-center. I’d imagine with solid mounts it would have been much more obvious.