Toyota U engine

Last updated
Toyota U engine
1961 Toyota U Type engine front.jpg
Overview
Manufacturer Toyota
Production1961-1976
2012-present

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.

Contents

U

U
Overview
Manufacturer Toyota
Production1961-1966
Layout
Configuration Flat-2
Displacement 697 cc (43 cu in)
Cylinder bore 78 mm (3.071 in) [1]
Piston stroke 73 mm (2.874 in)
Combustion
Cooling system Air-cooled
Output
Power output 28–32 PS (21–24 kW) [2]
Torque output 5.4 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
Overview
Manufacturer Toyota
Production1965-1976
Layout
Configuration Flat-2
Displacement 790 cc (48 cu in)
Cylinder bore 83 mm (3.268 in)
Piston stroke 73 mm (2.874 in)
Combustion
Cooling system Air-cooled

The 790 cc 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; 48 hp) 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
Toyota 86 - Engine.jpg
Overview
Manufacturer Subaru
Also called FA20D
Production2012-2021
Layout
Configuration Flat-4
Displacement 2.0 L; 121.9 cu in (1,998 cc)
Cylinder bore 86 mm (3.39 in)
Piston stroke 86 mm (3.39 in)
Compression ratio 12.5:1
Combustion
Fuel system Direct injection and Multi-Port injection
Fuel type Gasoline
Cooling system Water-cooled
Output
Power output 200 PS (147 kW; 197 hp)
Torque output 205 N⋅m (151 lb⋅ft)
Chronology
Successor FA24D

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

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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.