TM 9-2815-225-34&P 1-10.  EQUIPMENT DATA Manufacturer ................................................................................................................... Cummins Engine Company, Inc. Model .............................................................................................................................. NTC-400 Type  ............................................................................................................................... 4-cycle, turbocharged diesel, compression ignition DIMENSIONS Length  ............................................................................................................................ 58.88 in.  (149.6 cm) Width  .............................................................................................................................. 33.63 in.  (85.4 cm) Height  ............................................................................................................................. 50.91 in.  (129.3 cm) Net Weight, Dry ............................................................................................................... 2,600 lbs (1,180.4 kg) CYLINDERS Number ........................................................................................................................... 6 Arrangement  ................................................................................................................... In-line Firing Order ..................................................................................................................... 1-5-3-6-2-4 Bore ................................................................................................................................ 5.5 in.  (14 cm) Stroke  ............................................................................................................................. 6 in.  (15.2 cm) Displacement  .................................................................................................................. 855 cu-in.  (14 L) Compression Ratio  .......................................................................................................... 13.5:1 (M915/Big Cam I) 14.0:1 (M915A1/Big Cam III) GOVERNED SPEED Full Load ......................................................................................................................... 2100 rpm No Load  .......................................................................................................................... 2460 rpm Idle Speed ....................................................................................................................... 600 rpm LUBRICATION SYSTEM Type  ............................................................................................................................... Force-fed Operating Pressure (Normal)  ........................................................................................... 35-45 psi (M915A1/Big Cam III) 50-70 psi (345-483 kPa) (M915/Big Cam I) Operating Pressure (Minimum)  ........................................................................................ 15 psi (100 kPa) @ idle System Capacity Including Bypass Filter  .......................................................................... 44 qt (41.6 L) (M915A1) 46 qt (43.5 L) (M915) Operating Temperature (Normal)  ..................................................................................... 200-250F (93-121C) Oil Pump ......................................................................................................................... Gear-type COOLING SYSTEM Type  ............................................................................................................................... Liquid with fan and radiator Operating Temperature (Normal)  ..................................................................................... 175-195F (79-91C) Thermostat ...................................................................................................................... 1 PERFORMANCE HEAD Maximum Torque  ............................................................................................................ 1150 lb-ft @ 1500 rpm (M915/Big Cam I) 1300 lb-ft @ 1300 rpm (M915A1/Big Cam III) Maximum Output ............................................................................................................. 400 BHP Piston Speed @ 2100 rpm................................................................................................ 2100 ft/min 1-5