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maximum torque of 165 Nm at 4300 rev/min and its maximum power 88 kW at 5500 rev/min

Torque developed at maximum power

T = bp x 60

2pN

= 88000 x 60

2 x p x 5500

= 152.8 Nm

Power developed at maximum torque

bp = 2pNT

60

= 2 x p x 4300 x 165

60

= 74298.66626 ÷ 1000

= 74.3 kW

please help i'm really not sure!