Engine Comparison - 1994-1997 Power Stroke FAQ

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DieselStop Content

Discussion Starter · Dec 11, 2019 (Edited by Moderator)

Engine Comparison
Courtesy of: Ford Motor Company Publication 2124-002 REF

	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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