SJ40 series turbocharger suits for 1.2-1.8L engine. Its standard characteristics include: *Centrifugal compressor with wide flow area; *Centripetal turbine;*Dual floating bearing system; *Single runner symmetry turbine housing;*By-pass valve; Optional characteristics include:*Fixed section turbine housing of 3-4.5cm2,*Variable section turbine housing;*Compressor housing&turbine housing inclination can be chosen from 0 from 3600.