Toyota RI engine

Last updated
Toyota RI
Overview
Manufacturer Toyota Gazoo Racing
Production2014–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 materialDie cast steel or aluminium alloy. Machining process from a solid is not permitted
Cylinder head materialDie 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 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
Management Bosch Motronic MS 7.4
Fuel typeVarious (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
Length600  mm (23.62  in)
Width697  mm (27.44  in)
Height693  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]

Contents

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.

Applications

See also

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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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