Toyota FZ engine

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FZ engine
Overview
Manufacturer	Toyota
Production	1993–2008
Layout
Configuration	Inline-6
Displacement	4.5 L (4,477 cc)
Cylinder bore	100 mm (3.94 in)
Piston stroke	95 mm (3.74 in)
Valvetrain	DOHC 4 valves x cyl.
Compression ratio	9.0:1
Combustion
Fuel system	Carburetor (1FZ-F) Fuel injection (1FZ-FE)
Fuel type	Petrol
Cooling system	Water-cooled
Output
Power output	190 hp (142 kW) (1FZ-F) 212 hp (158 kW) (1FZ-FE) 240 hp (179 kW) (1FZ-FE 1998-2009)
Torque output	268 lb⋅ft (363 N⋅m) @ 2800 RPM (1FZ-F) 275 lb⋅ft (373 N⋅m) @ 3200 RPM (1FZ-FE) 300 lb⋅ft (407 N⋅m) @ 3600 RPM (1FZ-FE 1998-2009)
Chronology
Predecessor	Toyota F engine

The Toyota FZ engine was a 24-valve, 4.5 L (4,477 cc) DOHC straight-6 internal combustion engine manufactured by Toyota to replace the F-series engine. It was used primarily in SUVs because of its large displacement, smoothness, ruggedness and torque.

Technical data[]

The engine displaced 4.5 L (4,477 cc) with a bore and stroke measuring 100 mm × 95 mm (3.94 in × 3.74 in), respectively and a 9.0:1 compression ratio; the head used Toyota's narrow-angle overhead camshafts for better fuel economy.^[1] The 1FZ had only two variants available: the 1FZ-F and the 1FZ-FE. The only significant difference between the two was the inclusion of electronic fuel injection on the 1FZ-FE, whereas the 1FZ-F used a carburetor.^[2]

The 1FZ-F produced 188 hp (140 kW) at 4400 rpm and 268 lb⋅ft (363 N⋅m) at 2800 rpm; its fuel injected counterpart produced 212 hp (158 kW) at 4600 rpm and 275 lb⋅ft (373 N⋅m) at 3200 rpm.

Starting in 1998, the fuel injected version of the 1FZ-FE was also manufactured with a direct ignition variation available in certain non-US markets (the engine pictured here is that variant discernible by the intake manifold and lack of distributor). This version of the engine received many updates over the previous version such as a redesigned head, more compact pistons, updated throttle body, an improved intake manifold with longer intake runners, 4 nozzle fuel injectors to improve fuel atomization and direct ignition. This version of the 1FZ-FE produced 240 hp (179 kW) at 4600 rpm and 300 lb⋅ft (407 N⋅m) at 3600 rpm on 91 Octane Fuel (RON) without a catalytic converter.^{[citation needed]}

Also, a de-rated LPG version was built for the 7FG/7FZ series forklifts. Called 1FZ-E it produced 63 kW (84 hp) at 2350 rpm and 294 N⋅m (217 lbf⋅ft) at 1200 rpm ^[3]

Usage[]

The 1FZ-F and -FE were used in the following vehicles:

• 1992–2009 Toyota Land Cruiser (FZJ7x)
• 1992–2007 Toyota Land Cruiser (FZJ80)
• 1998–2007 Toyota Land Cruiser (FZJ100, FZJ105)
• 1995–1997 Lexus LX 450 (1FZ-FE only)
• Toyota 7FG/7FD series forklifts

See also[]

List of Toyota engines

References[]