Forged rods for 4AGE 20v options

[fkn16v]

Too my knowledge blacktop flywheel and balancer are the lightest of factory options although they are by no means the lightest available.

Many flywheel makers have them at around 3.9-4.1kgs v's blacktops 5.9kgs. Small port 7.1kg and bigports 7.9kgs i believe.

Balancer's i wouldn't know but ive seen alloy pulley kits that im sure would be lighter then the stock Toyota options.

Im also lead to believe that a balancer that is too light could harm the harmonics of the crank. I think the balances soul purpose is that stop/suppress the vibration cause by each combustion stoke.

Dont forget too that removing weight means less momentum to climb hills. Im mean sure it will free rev very well but wont climb in revs very well up hills.

http://www.my-acoustic.com/Car/weight_is...weight.htm

Other useful stuff in here.