Toyota RI | |
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Overview | |
Manufacturer | Toyota Gazoo Racing |
Production | 2014–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]
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