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

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)[4]
  • RI4AG (2014–2023)
  • RI4BG (2024-present)

Applications

See also

References