Quote from: SHOdded on October 08, 2016, 12:07:49 PM
Pardon my ignorance, but what is that?
unsprung weight or the part?
Unsprung weight is the mass the engine must turn before moving the car (crank, cams, drivetrain, rotors, wheels, etc). 1lb of unsprung weight is about equivalent to dropping 10lbs of curbweight or "sprung" weight.
This is a balance shaft delete kit with oil control baffle. The balance shaft in the 2.0 is included for minor NVH and is a 19lb weight driven directly from the crank. The baffle ensures oil pick-up works properly in hard cornering as the void the balance shaft leaves can starve the oil pump in some circumstances.
On top of decreasing weight; because this is mass directly on the crank the engine will rev quicker and as a result the turbo will spool a bit faster. Since the engine works less to turn itself this mod increases power across the entire range. Between this, the crank pulley I am doing at the same time and my lighter wheels I have pulled ~30lbs off unprung weight this season.