What is everyone's opinion on lightweight flywheels?

[At-Least-It's-An-Evo]

I had the ACT and had no issues you guys speak of also. I wasn't able to tell a difference in drivability.

[1ViciousGSX]

I have the Fidanza billet flywheel.

Light flywheels are a "give to get" kind of thing. You will give up some drivability issues with launching and possibly have low idle stalls when pushing in the clutch too soon, but once your car is lauched, you should see an improvement. The less power it takes to turn the flywheel is more power getting to the ground. This would only apply to hard acceleration though.

I have a fidenza 8lb flywheel and no balance shafts, I've only ever had the car stall on me once just from pushing the clutch in and the car had a mis from bad plug wires so that certainly didnt help. Otherwise the only time I notice it is just around traffic driving that i have to make sure to keep the rpms up a bit more leaving from a stoplight when i'm slipping the clutch. Launching I cant really say if there is a huge difference because I have tires that just spin when I launch, a stutter box and my stock clutch wouldnt let me launch before because it slipped so bad.