Toyota RZ engine

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Toyota RZ engine
Toyota 2RZ-FE engine 1998 Hilux.jpg
Overview
Manufacturer Toyota Motor Corporation
Production 1989–2004
Chronology
Predecessor
Successor Toyota TR engine

The Toyota RZ engine family is a straight-4 piston engine series built in Japan. The RZ series uses a cast-iron engine block and aluminum SOHC or DOHC cylinder heads. It has EFI fuel injection, 2 or 4 valves per cylinder and features forged steel connecting rods.

1RZ[edit]

The 1RZ is a 2.0 L (1,998 cc) version built from 1989. Bore is 86 mm and stroke is 86 mm.

1RZ-E[edit]

The 1RZ-E is the fuel-injected version of the 1RZ. With a compression ratio of 9:1, output is 75–81 kW; 101–108 hp; 102–109 PS at 5,400 rpm with 160–167 N⋅m (118–123 lb⋅ft) of torque at 2,800 rpm. With redline at 5,500 rpm.

Applications:

2RZ[edit]

2RZ-FE Engine in a 1999 Toyota Hilux

The 2RZ is a 2.4 L (2,438 cc) version. Bore is 95 mm and stroke is 86 mm; a variety of combination of heads and fuel delivery systems were available.

2RZ-E[edit]

This is an SOHC engine with two valves per cylinder. Valve adjustment is by shim over bucket. Output is 88 kW; 120 hp; 120 PS at 5,200 rpm. Originally manufactured with a carburetor induction system, it was later upgraded to Electronic Fuel Injection, with the -E suffix added to the engine designation. Toyota specified unleaded fuel with a rating of at least 91 RON in Australia.

Applications:

  • 1989–2004 Toyota HiAce (encompassing the RZH1xx series, with the 2RZ-E engine variant introduced in 1998)

2RZ-FE[edit]

The 2RZ-FE, and 4RB1 or 4RB2 in China, is a 2.4 L (2,438 cc) version. Bore is 95 mm and stroke is 86 mm. Compression ratio is 9.5:1. Output is 106 kW; 142 hp; 144 PS at 5000 rpm with 220 N⋅m (160 lb⋅ft) of torque at 4000 rpm. This engine does not feature balance shafts. It has four valves per cylinder and DOHC. Valve adjustment is by shim over bucket. The 2RZ-FE is an interference engine.

Applications:

3RZ[edit]

3RZ-FE[edit]

The 3RZ-FE is a 2.7 L (2,693 cc) version. Bore is 95 mm and stroke is 95 mm. Compression ratio is 9.5:1. Output is 110 kW; 150 hp; 150 PS at 4800 rpm with 240 N⋅m (177 lb⋅ft) of torque at 4000 rpm. This engine features twin, chain-driven balance shafts. It has four valves per cylinder and DOHC. Valve adjustment is by shim over bucket. The 3RZ-FE is an interference engine.

3RZ-FE in a Toyota Tacoma

Applications:

See also[edit]

References[edit]