21 Sentra Specs Under the hood of the Nissan Sentra B18 is a fourcylinder MRDD engine that is naturally aspirated, direct injection and brand new With a capacity of liters, 16 valves and a CVTC Twin variation, it produces power up to 145 horsepower at 6,000 rpm and a maximum torque of 197 Nm which is achieved at 4,000 rpm
