[FMG_V6_btb]

Hi, modifying the crank taking some weigth from it and giving knife-edged shape to the counterweights only will give you a little power increase (maybe 0.2 HP) by the fact of a better aerodinamycs of the crank with the oil fog inside the crankcase.

The benefits are three:

1- The inertia of the rotating masses (crank) is lower, so less torque is needed to rev up the engine when accelerating, instead this torque is sent to the transmission to accelerate the car.

2- The better aerodinamics of the crank inside the crankcase improve the lubricating conditions of the oil in the engine (less foam formation).

3- If in high g cornering the oil in the sump reaches the crank (not so probable), the knife-edge shape of the counterweights will made the power loss be lower.

Paco.