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Toyota FZ engine

Reciprocating internal combustion engine From Wikipedia, the free encyclopedia

Toyota FZ engine
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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.

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Technical data

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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 (1FZ-FE) was updated in certain non-US markets. 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 (via a wasted spark set-up with three dual outlet coils); the engine pictured here is that variant discernible by the intake manifold and lack of distributor. 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]

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Usage

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

See also

List of Toyota engines

References

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