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Toyota U engine

Toyota U engine
Overview
ManufacturerToyota
Production1961–1976
2012–2021

The Toyota U engine is a series of flat engines produced by Toyota. The original version of this engine was produced in the 1960s and 1970s in flat-twin configuration. The engine series was extended in 2012 for the engine derived from the Subaru flat-four for the Toyota 86.

U

U
Overview
ManufacturerToyota
Production1961–1966
Layout
ConfigurationFlat-2
Displacement697 cc (43 cu in)
Cylinder bore78 mm (3.071 in)[1]
Piston stroke73 mm (2.874 in)
Combustion
Cooling systemAir-cooled
Output
Power output28–32 PS (21–24 kW)[2]
Torque output5.4 kg⋅m (53.0 N⋅m)

The 697 cc U was produced from 1961 through 1966. The power was increased from 28 to 32 PS (21 to 24 kW; 28 to 32 hp) from engine number U-184170 onwards. It was exclusively installed in the Toyota Publica family of vehicles.

2U

2U
Twin-carb 2U engine
Overview
ManufacturerToyota
Production1965–1976
Layout
ConfigurationFlat-2
Displacement790 cc (48 cu in)
Cylinder bore83 mm (3.268 in)
Piston stroke73 mm (2.874 in)
Combustion
Cooling systemAir-cooled

The 790 cc, 45 PS (33 kW) 2U was produced from 1965 through 1969, while the similar 2U-B was produced from 1966 through 1976. Output for the 2U-B when fitted to the Publica is 49 PS (36 kW) at 5,400 rpm. When installed in the Toyota MiniAce (UP100) minitruck and bus series, the engine only produces 36 PS (26 kW)[3] at 4,600 rpm. This version has an 8.2:1 compression ratio.[4] The 2U-C used in some models of the Publica 20 series produced 40 PS (29 kW; 39 hp) at 5,000 rpm.[5] It was also installed in the Publica-derived sports car, called the Toyota Sports 800.

4U

4U
Overview
ManufacturerSubaru
Also calledFA20D
Production2012–2021
Layout
ConfigurationFlat-4
Displacement2.0 L; 121.9 cu in (1,998 cc)
Cylinder bore86 mm (3.39 in)
Piston stroke86 mm (3.39 in)
Compression ratio12.5:1
Combustion
Fuel systemDirect injection and Multi-Port injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output200 PS (147 kW; 197 hp)
Torque output205 N⋅m (151 lb⋅ft)
Chronology
SuccessorFA24D
See also: Subaru FA engine

Appearing in the Toyota 86 (also known as the Toyota GT 86 in Europe, Scion FR-S in the US and Subaru BRZ), the 4U-GSE is a boxer type engine with four cylinders and a bore and stroke of 86 mm (3.39 in). The engine is a Subaru designed-and-built flat-four engine called the FA20D, with a Toyota engine code. The engine is built at Subaru's Oizumi Plant in Ota, Gunma. It features Toyota's D4-S direct and port injection systems, with a maximum power rating of 200 PS (147 kW; 197 hp) at 7000 rpm and a maximum torque rating of 205 N⋅m (151 lb⋅ft) at 6600 rpm. The compression ratio is 12.5:1.[6] In 2016, for the 2017 model year, power was increased to 208 PS (153 kW; 205 hp) when equipped with a manual transmission.[7]

The 4U-GSE was discontinued in 2021, following the introduction of the second-generation Toyota 86 (also known as the Toyota GR86) and Subaru BRZ, which uses a 2.4-liter FA24D. Unlike the FA20, it does not use a Toyota engine code.

See also

References

  1. ^ "Publica (brochure)" (in Japanese). Japan: Toyota. 1961-06-01. p. 11. Retrieved 2021-12-29.
  2. ^ Publica parts catalogue. Toyota.
  3. ^ Toyota Commercial Cars (Catalog), Toyota, 1969, p. 6
  4. ^ News from Toyota (PDF) (Press Release) (in Japanese), Toyota Motor Co., 1967-11-06
  5. ^ Publica models UP20,20-F,20-KS,20S parts catalogue. Toyota. 1969. No.53114-69.
  6. ^ "86 スペック" [86 Specs]. Toyota Japan. Archived from the original on 2012-04-15. Retrieved 2012-03-30.
  7. ^ Jacquot, Josh (October 2016). "2017 Subaru BRZ Manual". Car and Driver. US: Hearst Communications, Inc. Retrieved 2017-11-21.
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