Yes...it's a night and day difference.

 

The only time you will notice a loss in torque is at the launch like 97teg said. The flywheel has a lower moment of intertia so it will have a greater tendency to bog at launch.. simple compensation is to add a little more gas, and you've solved your problem. Once the clutch is engaged think of it as a piece of a constant steel rod... you've only lowered the weight of that segment that the engine still has to rotate... thus the entire rotating drive assembly is lighter. you don't lose torque once the engine is engaged with the transmission, you lose loss of power due to rotating mass.

-DaBat

 

i have a fidanza 7.5lbs flywheel.

before it was alot harder to stall the car. now its stalls alot easyer. As for performance, the car drive so much easyer. even when im driving up hills with passangers the car doesnt lag as much as it did before. I noticed a big improvment in fuel economy. I jumped up like 2-3 mpg on the hiway.

Another thing is that you loose top end speed. Before I could take my car to 130 mph no problems. Now it races to 112 then the acceleration slows down after that. but who in there right mind goes that fast anyways??

 

I didn't lose any top end speed, and a flywheel wouldn't cause that.