Toyota RZ engine
| Toyota RZ engine | |
|---|---|
 | |
| Overview | |
| Manufacturer | Toyota Motor Corporation |
| Production | 1989–2004 |
| Layout | |
| Configuration | Naturally aspirated Straight-4 |
| Cylinder bore |
|
| Piston stroke |
|
| Cylinder block material | Cast iron |
| Cylinder head material | Aluminum |
| RPM range | |
| Max. engine speed | 5,500 |
| Combustion | |
| Fuel system | Electronic fuel injection |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output | 101–150 hp (75–112 kW; 102–152 PS) |
| Torque output | 118–177 lb⋅ft (160–240 N⋅m) |
| Chronology | |
| Predecessor | |
| Successor | Toyota TR engine |
The Toyota RZ engine family is a straight-four piston engine series built in Japan. The RZ series uses a cast-iron engine block and aluminum SOHC or DOHC cylinder heads. It has electronic fuel injection (EFI), 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 and stroke is 86 mm × 86 mm (3.39 in × 3.39 in). The original carburetted model in Japanese trim produces 100 PS (74 kW; 99 hp) at 5,400 rpm and maximum torque of 162 N⋅m (119 lb⋅ft) at 2,400 prm.
Applications:
- 1989–1993 Toyota HiAce
1RZ-E
[edit]The 1RZ-E is the fuel-injected version of the 1RZ. With a compression ratio of 9.0:1 and in Japanese trim, output is 110 PS (81 kW; 108 hp) at 5,200 rpm and maximum torque of 167 N⋅m (123 lb⋅ft) at 2,600 prm. With redline at 5,500 rpm.
Applications:
- 1989–2004 Toyota HiAce Van, Wagon
- 1998–2001 Toyota Hilux
- 2000–2004 Toyota Kijang/Revo/Venture
2RZ
[edit]The 2RZ is a 2.4 L (2,438 cc) version. Bore and stroke is 95 mm × 86 mm (3.74 in × 3.39 in); 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 120 PS (88 kW; 118 hp) at 4800 rpm with 146 lb⋅ft (198N⋅m) of torque at 2600 rpm. It does not have balance shafts and is known for vibrations.[1] 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)
2RZ-FE
[edit]The 2RZ-FE, and 4RB1 or 4RB2 in China, is a 2.4 L (2,438 cc) version. Bore and stroke is 95 mm × 86 mm (3.74 in × 3.39 in). Compression ratio is 9.5:1. Output is 142 hp (106 kW; 144 PS) at 5000 rpm with 160 lb⋅ft (217 N⋅m) 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 with a timing chain.[2][3] A 2.2 L (2,185 cc) version called the 4RB3 is also manufactured in China which has a bore and stroke of 91 mm × 84 mm (3.58 in × 3.31 in), while sharing the 2RZ's 102.5 mm (4.04 in) bore spacing.[citation needed] According to a review in 2023, there are reports of the engine typically lasting over 250,000-300,000 miles and less frequently 500,000 miles.[2]
Applications:
- 1995–2004 Toyota Tacoma 4x2[2]
- 1998–2004 Toyota Hilux[2]
- 1999-2006 ARO 24 Series
3RZ
[edit]3RZ-FE
[edit]The 3RZ-FE is a 2.7 L (2,693 cc) version. Bore and stroke is 95 mm × 95 mm (3.74 in × 3.74 in). Compression ratio is 9.5:1. Output is 150 hp (112 kW; 152 PS) at 4800 rpm with 177 lb⋅ft (240 N⋅m) 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 with a timing chain reported to last 150,000 miles.[4] The cylinder head is composed of aluminum alloy and the intake manifold is made from aluminum.[5]
Applications:[5]
- 1995–2004 Toyota Tacoma
- 1996–2000 Toyota 4Runner
- 1994–1998 Toyota T100
- 1995–2002 Granvia
- 1995–2004 Toyota Hilux
- 1990–2004 Toyota HiAce
- 2001–2009 Toyota Land Cruiser Prado (Venezuela)[citation needed]
- 1996–2004 Toyota Land Cruiser Prado
- 1998–2002 Toyota Touring Hiace
See also
[edit]
References
[edit]- ^ Guardiola, El (2022-09-05). "Engine specifications for Toyota 2RZ-E, characteristics, oil, performance". mymotorlist.com. Retrieved 2024-11-19.
- ^ a b c d says, Shawn Myers (2023-10-23). "Toyota's 2RZ-FE Engine: Problems, Reliability & Specs". Low Offset. Retrieved 2024-11-19.
- ^ "Toyota 2RZ-FE – Engine Specs". www.engine-specs.net. Retrieved 2024-11-19.
- ^ "3RZ-FE 2.7L Engine - In-Depth Look at Design and Reliability". MotorReviewer - In-Depth Engine Reviews. Retrieved 2024-11-19.
- ^ a b "Toyota 3RZ Engine: Everything You Need To Know – Dust Runners Automotive Journal". 2021-11-28. Retrieved 2024-11-19.