does it really make that much of a difference? i mean to make a car go from pulling hard to not so much?

 

Can you rephrase your question? A lightweight flywheel will certainly make a noticeable difference in the way the engine revs and the vehicle drives.

 

yeah thats what i meant, thanks

 

It can also make it harder to launch, and driving in heavy traffic can be a huge PITA. Once you are moving though, they are great, it all depends on what you use the car for.

 

people tend to complain about "oh I lost some bottom end" well in all truth no you didn't you lost engine inertia, if you do alot of highway driving you will score some gasmileage from it so thats a plus.
AND if you cared so much about bottom end you wouldn't drive a 1.8L lol you would be driving a 7.0L lol