Originally Posted by
MadRod
I know it makes a very big difference I went to lightened flywheel & the car was almost undrivable with my triple plate clutch, had to change back or not drive it on the street it was that difficult. Dont bother is my advice my old girl recorded all its fastest accleration times on a standard flywheel.
I expect it is other factors that led to the better times.
Simple physics, your engine will accelerate a low inertia flywheel faster than a high inertia flywheel.
Another thing to bare in mind for people sayng that eg a 4 kg flywheel is best. Two different 4kg flywheels may have very different moments of inertia depending on their construction and therefore behave totally different.