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Engine Comparison Courtesy of: Ford Motor Company Publication 2124-002 REF /TR> 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA ENGINE SPECIFICATIONS TYPE Diesel, 4-Cycle Type, Direct Injection Diesel, 4-Cycle Type, Indirect Injection Diesel, 4-Cycle Type, Indirect Injection CONFIGURATION OHV V-8 OHV V-8 OHV V-8 DISPLACEMENT 444 cu. in. (7.3 litres) 444 cu. in. (7.3 litres) 444 cu. in. (7.3 litres) BORE & STROKE 4.11 x 4.18 in. (10.44 x 10.62 cm) 4.11 x 4.18 in. (10.44 x 10.62 cm) 4.11 x 4.18 in. (10.44 x 10.62 cm) COMPRESSION RATIO 17.5:1 21.5:1 21.5:1 ASPIRATION Turbocharged with Back Pressure Device for warm-up Turbocharged with Wastegate Control Naturally Aspirated RATED POWER 210 hp @ 3000 rpm 190 hp @ 3000 rpm 185 hp @ 3000 rpm RATED TORQUE 425 lb.-ft. @ 2000 rpm 395 lb.-ft. @ 1400 rpm 360 lb.-ft. @ 1600 rpm TOTAL WEIGHT - DRY 920 lbs (417 kg) 900 lbs (408 kg) 860 lbs (390 kg) 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA COOLING SYSTEM WATER FLOW 80 gpm @ 3300 rpm 79 gpm @ 3000 rpm 80 gpm @ 3300 rpm THERMOSTAT LOCATION In Water Pump Housing Water Outlet Water Outlet WATER PUMP Centrifugal Type Centrifugal Type Centrifugal Type WATER PUMP ROATIONS Clockwise Counterclockwise Counterclockwise FAN HUB Right-Hand Thread Left-Hand Thread Left-Hand Thread 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA LUBRICATION SYSTEM TYPE Full Flow Full Flow Full Flow CAPACITY (INCLUDING FILTER) 12 U.S. Qts. (11 liters) 10 U.S. Qts. (9.5 liters) 10 U.S. Qts. (9.5 liters) OIL PUMP Gearotor Pump Gear Pump Gear Pump OIL COOLER 30 Fins per inch 30 Fins per inch 24 Fins per inch LUBE OIL SYSTEM Enhanced for New Injection System Not Applicable Not Applicable LUBE OIL FILTER Microglass - Extender Cellulose Cellulose OIL FILTER MOTORCRAFT/PART NUMBER FL-1995/F4TZ-6731-A FL-784 FL-784 OIL DRAIN INTERVAL 3000 - 5000 miles with microglass filter 2500 - 5000 miles 2500 - 5000 miles 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA HIGH PRESSURE LUBRICATION SYSTEM HIGH PRESSURE PUMP Gear Driven Swash Plate Not Applicable Not Applicable PRESSURE CONTROL Pulse-Width Modulated Pressure Regulated Spill Valve (EEC-V) Not Applicable Not Applicable OIL RAILS High Pressure Rails in Cylinder Heads Not Applicable Not Applicable OIL LINES High Pressure from Pump to Rails Not Applicable Not Applicable LUBRICATION OIL TEMPERATURE Used for Injection Control Strategy Not Applicable Not Applicable 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA FUEL SYSTEM TYPE Electronically-controlled Direct Injection Mechanical Indirect Injection Mechanical Indirect Injection SUPPLY SYSTEM Pump Mechanical Tandem: Diaphragm/Piston Mechanical Single Diaphragm Mechanical Single Diaphragm Filter Replaceable Element (FD-4595A/F4TZ-9N184-B) Conventional Spin-On Conventional Spin-On Return Flow Regulated Pump and Injector Leak-Off Pump and Injector Leak-Off FUEL DELIVERY AND CONTROL System Unitized Injectors Mechanical Pump, Lines and Injection Nozzles Mechanical Pump, Lines and Injection Nozzles Injector Actuation Hydraulic/Electrical Mechanical Hydraulic Mechanical Hydraulic Injector Timing Electronic Controlled by EEC-V (not adjustable) Mechanical Mechanical Fuel Control Electronic Mechanical Mechanical Diagnosis EEC Quick Test, Diagnosis with Super Star Tester II, Pressure Gauges Pressure Gauges, Timing Meter Pressure Gauges, Timing Meter 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA ELECTRONIC ENGINE CONTROLS SYSTEM EEC-V None None INJECTION CONTROL Injector Driver Module Not Applicable Not Applicable 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA CYLINDER HEAD COMBUSTION CHAMBER DESIGN Re-entrant Chamber in Piston Pre-Combustion Chamber in Head Pre-Combustion Chamber in Head ROCKER ARM ASSEMBLY Plate-Type Valve Lever Stamped Steel Stamped Steel EXHAUST VALVE MATERIAL Made of Hot Forged 21-2n Material Made of Iconel for Temperature Resistance Made of Chrome-Plate Steel OIL RAILS High Pressure Rails in Cylinder Heads Not Applicable Not Applicable FUEL PASSAGES In Cylinder Heads Not Applicable Not Applicable 7.3 DI TURBO 7.3L IDI TURBO 7.3L NA CYLINDER BLOCK CYLINDER BLOCK MATERIAL Cast Iron Cast Iron Cast Iron PISTON MATERIAL Aluminum-Alloy, Cast in Ni-Resist Insert Anodized, Aluminum-Alloy, Cast in Ni-Resist Insert Aluminum-Alloy, Cast in Ni-Resist Insert Integral Combustion Not Applicable Not Applicable PISTON RINGS #1 Full Keystone, #2 Taper Faced, #3 Two Piece Oil #1 Full Keystone, #2 Full Keystone, #3 Two Piece Oil #1 Rectangular, #2 Taper Faced, #3 Two Piece Oil CONNECTING ROD DESIGN Forged Steel Larger Connecting Rod Bore for Wrist Pin Larger Boring Surface Forged Steel Larger Connecting Rod Bore for Wrist Pin Forged Steel Smaller Bore for Smaller Wrist Pin PISTON PIN BORE DIAMETER 1.3086 in. (21.45 cm) 1.3086 in. (21.45 cm) 1.1104 in. (18.2 cm)

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