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Toyota RI engine
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| Toyota RI | |
|---|---|
| Overview | |
| Manufacturer | Toyota Gazoo Racing |
| Production | 2013–present |
| Layout | |
| Configuration | Inline-4 |
| Displacement | 2.0 L (122 cu in) |
| Cylinder bore | 86–90 mm (3.39–3.54 in) |
| Piston stroke | Free but typically approximately between 86–90 mm (3.39–3.54 in) |
| Cylinder block material | Die cast steel or aluminium alloy. Machining process from a solid is not permitted |
| Cylinder head material | Die cast steel or aluminium alloy |
| Valvetrain | DOHC 16-valve (four-valves per cylinder) |
| Compression ratio | 15:1 |
| Combustion | |
| Turbocharger | Single-turbocharged by Garrett Advancing Motion with 3.5 bar (51 psi) of turbo boost pressure |
| Fuel system | Bosch HDEV6 350 bar (5,076 psi) central high-pressure gasoline direct fuel injection. One direct injector per cylinder fed by an engine-driven high-pressure fuel pump |
| Management | Bosch Motronic MS 7.4 |
| Fuel type | Various (102 RON unleaded racing gasoline) |
| Oil system | Dry sump |
| Cooling system | Single mechanical water pump feeding a single-sided cooling system |
| Output | |
| Power output | 550–679.8 PS (542–671 hp; 405–500 kW)[1] |
| Torque output | 500–700 N⋅m (370–520 lbf⋅ft) |
| Dimensions | |
| Length | 600 mm (23.62 in) |
| Width | 697 mm (27.44 in) |
| Height | 693 mm (27.28 in) |
| Dry weight | 187 lb (85 kg) including turbocharger |
The Toyota RI is a family of prototype four-stroke 2.0-litre single-turbocharged inline-4 racing engines, developed and produced by Toyota, for the Super GT series and Super Formula under the Nippon Race Engine framework. The RI engine is fully custom-built.[2][3]
Versions
[edit]The RI engine comes in two different versions for different applications; the RI4A for use in Super Formula and the RI4AG for use in Super GT.
- RI4A (2013–present, also known as TRD-01F)[4]
- RI4AG (2013–2023)
- RI4BG (2024-present)
Applications
[edit]See also
[edit]- Honda HR-414E/HR-417E/HR-420E engine, similar engines also developed under the Nippon Race Engine framework
- Nissan NR engine, similar engine also developed under the Nippon Race Engine framework
References
[edit]- ^ "Most Extreme Toyota Supra Ever Unveiled With 670hp". 12 January 2019.
- ^ "Toyota GR Supra GT500 Racecar Sounds Insane Testing for the 2020 Super GT Series". 28 December 2019.
- ^ "The Four-Cylinder 2020 Supra Super GT Car Sounds Bizarre". 27 September 2019.
- ^ "TOYOTA GAZOO Racing announces 2023 Super Taikyu teams, completes SUPER GT and Super Formula driver line-ups". 12 January 2023.
- ^ "A GT500 Racer in Detail". 26 May 2015.
- ^ "2014 Lexus RC F GT500 | Lexus". 22 April 2016.
- ^ "Dear Lord, It's the Lexus RC-F GT500". Top Gear. January 29, 2014.
- ^ "GR SUPRA | GT500". TOYOTA GAZOO Racing.