Pettersen

iTrader: (1)

I'm building an S4T2 block with S5NA internals with new counterwheights and light flywheel, is it nececary to get the rotating assembly balanced when i'm going to run stock rpm's?

Tofuman FC3S

iTrader: (1)

Are the rotors matched?

Riz.

Pettersen

iTrader: (1)

Yes.

Wms10th

iTrader: (2)

I'm doing almost the same thing, fd rotors(matched),flywheel and counterweight, but with an RX8 e-shaft, my builder said a balance was unnecessary for the street.

But, I haven't run it yet.

j9fd3s

iTrader: (3)

its not needed. i did have the P port balanced, and it IS noticeably smoother even in the sub 7000rpm range. i started with NEW rotors, eshaft, even the rear CW.

so balancing is not needed, provided you're running matching parts (all S5, or all S4), but its nice

Pettersen

iTrader: (1)

Going back to school after the summer, so i can't afford nice :P