Given:
Piston mass = 324 grams
Bore diameter = 80 mm
Stroke = 88 mm
Connecting rod length = 136 mm
Mass of intake valve = 47 grams
Intake valve diameter= 32 mm
Intake valve "lift" = 8 mm (as measured by subtracting the two diameters of a cam)
Determine the inertia force required to move the piston at 6,000 rpm and the required valve spring force when operating at 6,000 rpm.