yucks kita itung
CR=(Vc+(D-PV))/Vc
CR=(24,45+(196-0))/24 ,45
CR=9,02
Vc= volume of the combustion chamber (including head gasket).
D= Displacement.
PV= Piston Volume 0 cc (Flat Top Piston)
Jadi Displacement (D) itu cc bersih boreXstroke = ((3.14/4)*Bore^2)*Stroke
D= ((3.14/4)*6.35^2)*6.22
D=196,88267
Sedang Pv= itu volume kepala piston.
Kalau piston cekung Vc Negatif, kalau cembung Vc positif.
Jadi misal piston cembung 4,45cc
CR=(Vc+(D-PV))/Vc
CR=(20+(196-4,45))/20
CR=10,58
Sedang kalau cekung 4,45cc
CR=(Vc+(D-PV))/Vc
CR=(28,9+(196-(-4,45)))/28,9
CR=7,94
Sedang kalau pakai piston standar tiger yang flat Top:
CR=(Vc+(D-PV))/Vc
CR=(24,45+(196-0))/24 ,45
CR=9,02
