Cummins L8.9CMII313 308hp Marine Propulsion Engine

CERTIFIED: This diesel engine complies with or is certified to the following agencies requirements:IMO Tier II (Two) NOx requirements of International Maritime Organization (IMO), MARPOL 73/78 Annex VI, Regulation 13 China Marine Emission Regulation Stage II GB15097-2016

Cummins L8.9CMII313 313hp Propulsion Marine Engine Performance Data

General Engine Data
Engine Model ……………………………………………………………………………L8.9CMII313
Rating Type ………………………………………………………………………………Continuous Duty
Rated Engine Power ……………………………………………………………………kW [hp] 230 [308]
Rated Engine Speed ……………………………………………………………………………rpm 2200
Rated Power Production Tolerance …………………………………………±% 3
Rated Engine Torque ………………………………………………………………Nꞏm [lbꞏft] 998 [735]
Peak Engine Torque @ 1500 rpm………………………………………………Nꞏm [lbꞏft] 1119 [825]
Brake Mean Effective Pressure ……………………………………………kPa [psi] 1411 [205]
Indicated Mean Effective Pressure……………………………………………kPa [psi] 1580 [229]
Maximum Allowable Engine Speed ……………………………………………rpm 2440
Maximum Continuous Torque Capacity from Front of Crank Specifications
Maximum Torque Capacity from Front of Crank² …………………………Nꞏm [lbꞏft] [N.A.]
Compression Ratio………………………………………………………………………16.6:1
Piston Speed ……………………………………………………………m/sec [ft/min] 10.6 [2093]
Firing Order ………………………………………………………………1-5-3-6-2-4
Weight – Engine Only – Average ……………………………………kg [lb] 877 [1933]
Weight – Engine With Heat Exchanger System – Average…………kg [lb] 1001 [2207]

Governor Settings
Default Droop Value…………………………………………………………Refer to MAB 2.04.00-03/23/2006 for Droop explanation 7%
Maximum Droop Allowed…………………………………………………
High Speed Governor Break Point…………………………………………………rpm 2280
Minimum Idle Speed Setting …………………………………………………rpm 750
Normal Idle Speed Variation …………………………………………………±rpm 50
High Idle Speed Range Minimum …………………………………………………rpm 2280
Maximum ……………………………………………………………………………………………………rpm 2400
Noise and Vibration
1 m sound pressure level – GB/T1859 ………………… < 93 dB
Lubrication System¹
Max. Allowable Oil Temperature (Sump) …………………………………………………°C [°F] 124 [255]
Oil Pan Capacity (OP9337)
Low/High………………………………………………………… l/l 18.9 22.7
Min. Oil Pressure at idle speed………………………………………………………kPa [psi] 69 [10]
Maximum Operational Angularity of Oil Pan …………………………………… degree 35

Fuel System¹
Fuel Consumption at Rated Speed …………………………………………………l/hr [gal/hr] 62.5 [16.5]
Approximate Fuel Flow to Pump …………………………………………………l/hr [gal/hr] 181 [47.9]
Maximum Allowable Fuel Supply to Pump Temperature…………………………………………………°C [°F] 70 [158]
Approximate Fuel Flow Return to Tank …………………………………………………l/hr [gal/hr] 119 [31.4]
Maximum Allowable Restriction to Fuel Pump
Clean Filter ………………………………………………………………………… kPa [psi] 16 [2.3]
Dirty Filter ……………………………………………………………………… kPa [psi] 30 [4.4]
Air System¹
Intake Manifold Pressure …………………………………………………kPa [in Hg] 211 [62]
Intake Air Flow …………………………………………………l/sec [cfm] 336 [712]
Heat Rejection to Ambient5 …………………………………………………kW [Btu/min] 23 [1309]
Exhaust System¹
Exhaust Gas Flow …………………………………………………l/sec [cfm] 876 [1,856]
Exhaust Gas Temperature (Turbine Out) …………………………………………………°C [°F] 505 [941]
Max. Exhaust Pressure …………………………………………………kPa [in Hg] 10 [3]
Emissions (in accordance with ISO 8178 Cycle E3)
NOx (Oxides of Nitrogen) …………………………………………………g/kwꞏhr [g/hpꞏhr] 4.85 [3.62]
HC (Hydrocarbons) …………………………………………………g/kwꞏhr [g/hpꞏhr] 0.25 [0.19]
CO (Carbon Monoxide) …………………………………………………g/kwꞏhr [g/hpꞏhr] 1.50 [1.12]
PM (Particulate Matter) …………………………………………………g/kwꞏhr [g/hpꞏhr] 0.10 [0.07]

Cooling System¹
Sea Water Pump flow4 ( Discharge Restriction Pressure 40 kPa )…………………………………………………m3/hr 11.4
Pressure Cap Rating (With Heat Exchanger Option) …………………………………………………kPa [psi] 48 [7]
Max. Pressure Drop Across Any External Cooling System Circuit…………………………………………………kPa [psi] 34 [5]
Jacket Water Aftercooled Engine (JWAC)
Coolant Flow to Engine Heat Exchanger …………………………………………………l/min [gal/min] 322 [85]
Standard Thermostat Operating Range (Start to Open)…………………………………………………°C [°F] 71 [160]
Standard Thermostat Operating Range (Full Open)………………………………………………….°C [°F] 83 [182]
Heat Rejection to Engine Coolant³…………………………………………………kW [Btu/min] 162 [9203]
Coolant Capacity
Engine Only…………………………………………………l [gal] 11 [3]
Electrical and Start System
Voltage……………………………………………………V 24
Cold Soak at -18°C (0°F) -Cold Cranking Amperes Rating …………………………………………………CCA 750
Maximum Allowable Resistance of Starting Circuit…………………………………………………Ohms 2
Min. start temperature without cold starting aid…………………………………………………°C [°F] -12 [-10]

Cummins L8.9CMII313,L8.9CMII313,cummins 308hp Marine Propulsion Engine,Cummins L8.9CMII313 308hp Marine Propulsion Engine