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Toyota RI engine

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(Redirected from Toyota RI4AG engine) Reciprocating internal combustion engine
Toyota RI
Overview
ManufacturerToyota Gazoo Racing
Production2014–present
Layout
ConfigurationInline-4
Displacement2.0 L (122 cu in)
Cylinder bore86–90 mm (3.39–3.54 in)
Piston strokeFree but typically approximately between 86–90 mm (3.39–3.54 in)
Cylinder block materialDie cast steel or aluminium alloy. Machining process from a solid is not permitted
Cylinder head materialDie cast steel or aluminium alloy
ValvetrainDOHC 16-valve (four-valves per cylinder)
Compression ratio15:1
Combustion
TurbochargerSingle-turbocharged by Garrett Advancing Motion with 3.5 bar (51 psi) of turbo boost pressure
Fuel systemBosch 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
ManagementBosch Motronic MS 7.4
Fuel typeVarious (102 RON unleaded racing gasoline)
Oil systemDry sump
Cooling systemSingle mechanical water pump feeding a single-sided cooling system
Output
Power output550–679.8 PS (542–671 hp; 405–500 kW)
Torque output500–700 N⋅m (370–520 lbf⋅ft)
Dimensions
Length600 mm (23.62 in)
Width697 mm (27.44 in)
Height693 mm (27.28 in)
Dry weight187 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.

Versions

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 (2014–present, also known as TRD-01F)
  • RI4AG (2014–2023)
  • RI4BG (2024-present)

Applications

See also

References

  1. "Most Extreme Toyota Supra Ever Unveiled With 670hp". 12 January 2019.
  2. "Toyota GR Supra GT500 Racecar Sounds Insane Testing for the 2020 Super GT Series". 28 December 2019.
  3. "The Four-Cylinder 2020 Supra Super GT Car Sounds Bizarre". 27 September 2019.
  4. "TOYOTA GAZOO Racing announces 2023 Super Taikyu teams, completes SUPER GT and Super Formula driver line-ups". 12 January 2023.
  5. "A GT500 Racer in Detail". 26 May 2015.
  6. "2014 Lexus RC F GT500 | Lexus". 22 April 2016.
  7. "Dear Lord, It's the Lexus RC-F GT500". Top Gear. January 29, 2014.
  8. "GR SUPRA | GT500". TOYOTA GAZOO Racing.
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