L325-20 Automotive Engine
DCEC L325-20 automotive engine is a 6-cylinders in line, 8.9 liter four-strokes engine with 114mm bore and 145mm stroke, equipped with Bosch P7100 pump and RQV-K governor. DCEC L325-20 automotive engine comes with turbocharger and Air-Air intercooler, with a EURO II post-processor. The prime power at 2200RPM of DCEC L325-20 automotive engine is 239 kW.
As part of EMAC, DuraMac provides complete powertrain that integrated with DCEC engine, Fast-Eaton clutch, FAST-CAT transmission, -DANA axle and Komman air suspension, while the electrification of automobile is the certain future, Duramac also get involved with EV powertrain system. We provide full life cycle services for all customers, from design to power system supply, from installation to commissioning, from after-sales service training to spare parts supply, from trouble shooting to overhaul technical support.
Advantages of L Automotive Engine
1. The cylinder bore adopts a platform mesh honing design, the perfect geometric structure effectively prevents oil leakage, and adopts advanced technologies such as new piston ring components and gasket crimping molding to reduce oil loss.
2. The cylinder block and cylinder head adopt integrated design, which eliminates the occurrence of engine water leakage and oil leakage. The parts are about 40% less than other similar engines, and the failure rate is greatly reduced.
3. Forged steel camshaft and crankshaft, high-strength cylinder block design, multiple parts cast on the cylinder block, high rigidity, high pressure resistance, good reliability, and longer service life.
Introduction of L325-20
Engine Model: | L325-20 |
Engine Type: | 6 Cylinders, in Line |
Displacement: | 8.9 L |
Advertised Power: | 325 HP @ 2200 rpm |
Aspiration Method: | T-charged & I-cooler |
Bore*Storke: | 114*145mm |
Fuel Consumption: | N/A |
Packing Size(L*W*H): | N/A |
Dry Weight: | 650Kg |
Lead Time: | 15-30 Working Days |
Payment Terms: | T/T ,L/C |

Engine Model | Advertised Power | Peak Torque | Torque | Fuel System | |
L300-20 | [email protected] rpm | [email protected] | 780N.m | BoschP7100 Pump/RQV-K | |
L325-20 | [email protected] rpm | [email protected] | 780N.m | BoschP7100 Pump/RQV-K | |
L340-20 | [email protected] rpm | [email protected] | 780N.m | BoschP7100 Pump/RQV-K | |
L340-30 | [email protected] rpm | [email protected] | 1010N.m | WeiFu PH Pump | |
L360-20 | [email protected] rpm | [email protected] | 780N.m | Bosch7100 Pump/RQV-K | |
L360-30 | [email protected] rpm | [email protected] | 780N.m | WeiFu PH pump/RQV-K | |
L375-30 | [email protected] rpm | [email protected] | 1210N.m | WeiFu PH pump/RQV-K | |
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GeneralInfomation of DCEC L325-20 Automotive Engine | |||
Engine Model | L325-20 | Advertised Power | 325 HP @ 2200 rpm |
Peak Torque | 1230 N.m @ 1400 rpm | Curve&Datasheet | FR92014 |
Compression Ratio | 16.6:1 | No. Of Cylinders | 6 |
Aspiration | Turbocharged & Inter-cooled | Displacement | 8.9L |
Bore*Storke | 114*145mm | CPL Code Revision | 1480 |
Dry Weight | 650kg | Wet Weight | 680kg |
Installation Data of DCEC L325-20 Automotive Engine | |||
Center Of Gravity. Distance From Front Face Of Block | 427mm | ||
Center Of Gravity. Distance Above Crank Centerline(Above Crankshaft) | 163mm | ||
Maximum Bending Moment At Rear Face Of Block | 1356N.m | ||
Maximum Crankshaft Thrust Bearing load limit- Intermittent load | 5338N | ||
Maximum Crankshaft Thrust Bearing load limit-Continuous load | 2670N | ||
Instantaneous Inertia At Rotating: (Without Flywheel) | N/A | ||
Emissions Certification | GB17691/GB14761 | ||
Idle Speed | 700±100rpm | ||
Maximum Non-Load Speed | 2500rpm | ||
Over Speed Performance (Within 15 Seconds) | 3500rpm | ||
The Clutch Torque @ 800Rpm | 780N.m | ||
Maximum Altitude At Which Continuous Operation Is Allowed | 2000m | ||
Supercharger Outlet Exhaust Pressure limit Value | 450kPa | ||
Maximum Power Of Exhaust Brake | 114kW | ||
Fuel System of DCEC L325-20 Automotive Engine | |||
Fuel System | BoschP7100 Pump/RQV-K | ||
Maximum Fuel Return Resistance | 520mmHg | ||
Maximum Inlet Resistance of oil Pump With Clean Filter | 150mmHg | ||
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Maximum Rating Performance Data of DCEC L325-20 Automotive Engine | ||
Engine Speed | 2200rpm | 1400rpm |
Oil Pressure | 426kPa | 327kPa |
Air Flow | 21.2m³/min | 11.2m³/min |
Air Pressurized Flow | N/A | N/A |
Air Pressurized Pressure | 170kPa | 132kPa |
Exhaust Flow | 56m³/min | 35m³/min |
Exhaust Temperature | 510°C | 505°C |
Fuel Consumption | 64l/hr | 42.5l/hr |
Coolant Flow | 280l/m | 175l/m |
Heat Energy Loss Coolant | 108KW | 66.8KW |
Heat Energy Loss Air | 65KW | 29KW |
Mechanical Loss | 36.5KW | 17KW |
System Technical Data of DCEC L325-20 Automotive Engine | ||
Air Intake System | Maximum Temperature Rise Between Ambient Air And Engine Air Inlet | 15℃ |
Max. Intake Restriction With Dry Type Air Cleaner,With Clean Filter-Medium Duty | 2.9 (300) kPa (mmH2O) | |
Max. Intake Restriction With Dry Type Air Cleaner,With Clean Filter-Heavy Duty | 3.7 (380)kPa (mmH2O) | |
Max. Intake Restriction With Dirty Filter | 6.2 (635)kPa (mmH2O) | |
Turbocharged&Intercooled | Maximum Intake Manifold Temperature-Second Level | 55 ℃ |
Maximum Intake Manifold Temperature-Three-Level | 50℃ | |
Intercooler Cooling Temperature-Second Level | 25℃ | |
Intercooler Cooling Temperature-Three-Level | 20℃ | |
Maximum Allowable Pressure Difference Before And After Intercooling-Three-Level | 16.7 (125)kPa(mmHg) | |
Minimum Inlet Pipe Diameter Allowed-Three-Level | 100mm | |
Exhaust System | Max. Back Pressure Imposed By Complete Exhaust System | 10.0 (75)kPa(mmHg) |
Exhaust Pipe Size Normally Accepable | 75mm | |
Maximum Static Bend Allowed For Turbocharger Exhaust Flange | N/A | |
Lubrication System | Low Oil Level Inclination Angle-Front Up | 45º |
Low Oil Level Inclination Angle-Back Up | 45º | |
Low Oil Level Inclination Angle-Fuel Pump Side Up | 45º | |
Low Oil Level Inclination Angle-Exhaust Side Up | 45º | |
Oil Sump Capacity-Upper Limit | 23L | |
Oil Sump Capacity-Lower Limit | 19L | |
Capacity Of The Whole System | 27.6L | |
Cooling System | Coolant Capacity – Engine Only | 11.1L |
Standard Thermostat (Modulating) Range | 83-93℃ | |
Minimum Fill Rate ( Without Low Level Alarm) | 19L/m | |
Minimum Coolant Expansion Space – % Of System Capacity | 6% | |
Water Tank Capacity Without Water Expansion | 6L | |
Maximum Coolant Pressure (Without Pressure Cap, Thermostat Closed) | 290kPa | |
Maximum Degassing Time | 25mins | |
Maximum Coolant Flow To Accessories | 56l/m | |
Maximum Coolant Temperature Engine Out | 100℃ | |
Minimum Allows Pressure Of Pressure Cap | 50kPa | |
Minimum Recommended Coolant Temperature | 70℃ | |
Common Operating Temperature Range Of Fans With Fan Clutch | 75-80℃ | |
Maximum Coolent Temperature For Engine Protection Control | 104℃ | |
The Limit Environmental Temperature At Rated Speed | 45 ℃;42℃ | |
The Limit Environmental Temperature At Peak Torque | 40 ℃;37℃ | |
24V Electrical System | Maximum Allowable Resistance Of Cranking Circuit | 0.002Ω |
The Cold Start Current When Engine And The Clutch Separate | 510CCA | |
Cold Starting System | Min. Unaided Cold Start Temperature | -10℃ @120rpm |
Min. Aided Cold Start Temperature | -25℃ @110rpm | |
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Scopes of Supply of DCEC L325-20 Automotive Engine | ||||
Air Intake System | 1. Air intake manifold | Starting System | 1. Starter motor | |
2. Water-air Intercooler | 2. Starter rely | |||
Exhuast System | 1. Exhuast manifold | Fuel System | 1. Fuel transfer pump | |
2. Turbocharger | 2. High-pressure fuel pump | |||
3. Exhuast elbow | 3. Fuel Filter | |||
Charging System | 1. Charging alternator | Control System | 1. ECU & sensors | |
Cooling System | 1. Water pump | Lubricating System | 1. Oil pump | |
2. Engine Fan | 2. Oil filter | |||
3. Standard radiator | 3. N/A | |||
Power Output System | 1. Flywheel | Engine Auiliary Accessories | 1. Air compressor | |
2. Standard flywheel housing | 2. Power steering pump | |||
Engine Mounting System | 1. Engine Mouting Bracket | Engine Shut-Down System | 1. Engine fuel shut-off solenoid | |
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Optional Accessories of DCEC L325-20 Automotive Engine | ||||
Air Intake System | 1. Air Intake pre-heater | Starting System | 1. Manual Magnetic DC Contactor | |
2. Air intake shut-off valve | 2. Dual ears flywheel housing | |||
3. Air filter | 3. Spring Starter Motor | |||
4. Air intake pre-filter | 4. Air Starter Motor | |||
5. Air filter alarm system | 5. Hydraulic Starter Motor | |||
Exhuast System | 1. Muffler & bellows | Cooling System | 1. Silent Type Radiator | |
2. Flame trap | 2.Plateau Radiator | |||
3. Spark arrestor type Muffler & bellows | 3.Salt-Spray Resistant Radiator | |||
4. DPF system | 4. Coolant pre-heater | |||
Lubricating System | 1. Oil pre-heater. | Power Output System | 1. Clutch | |
Fuel System | 1. Coarse Filter | Engine Auiliary Accessories | 1. Hydraulic oil pump | |
2. Fuel pre-heater | 2. Air conditioner compressor | |||
Engine Mounting System | 1. Shock absorber pad | Control System | 1. Can add mechanical accelerator pedal | |
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Modifiable components of DCEC L325-20 Automotive Engine | ||||
Air Intake System | 1. Installation position of air filter | Starting System | 1. 12V starter motor for 12v electric system | |
2. Upgrade to heavy-duty type air fitler | 2. Upgrading to specified brand and speicifications of starter motor | |||
Exhuast System | 1. Can modify installation position and direction of turbocharger | Charging System | 1. 12V charging alternator for 12v electric system | |
2. Water-cooled exhuast manifold | 2. Explosion-proof charging alternator | |||
3. Water-cooled turbocharger | 3. Upgrading to specified brand and speicifications of charging alternator | |||
Fuel System | 1. Upgrade to fuel fitler that integrated with fuel transfer pump and fuel pre-hearter | Engine Mounting System | 1. Can modify engine mouting bracket. | |
Engine Shut-Down System | 1. 12V solenoid for 12v electric system | Cooling System | 1. Can modify engine fan into blower fan or suction fan | |
2. Explosion-proof solenoid | 2. Can modify central position of engine cooling fan | |||
3. N/A | 3. Can choose type of engine fan from mechanical type or electric type | |||
Lubricating System | 1. Oil Pan position | Power Output System | 1. Can modify size of flywheel housing and flywheel. | |
2. Number of dipstick | 2. Dual-ear flywheel housing (For twin-starter system) | |||
3. Position of dipstick can choose from 6 positions | 3. Some of models can modify flywheel housing into PTO integrated type. | |||
4. Can modify oil filter to be remote installation | 4. Engine have connecting port of PTOs, that able to provide power output. | |||
Engine Auiliary Accessories | 1. All of auxiliary system can choose specified brands and specifications. | |||
2. Additional auxiliary systems can be added for special applications. | ||||
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Engine Sale Manual

Installation Drawing

Installation Manual

Operation Manual

Engine Parts Catalogue
