NameS20
TypeWater-cooled inline-6 DOHC 4-valve
Displacement1,989 cc
Power160 PS (118 kW) @ 7,000 rpm
Torque18.0 kgm (177 Nm / 130 lb-ft) @ 5,600 rpm
Compression9.5:1
NotesRe-engineered from the R380 prototype race car engine. Multi-sphere combustion chamber. 4-valve V arrangement, cross flow, lifter direct drive. Specific output: 80.4 PS/L. Engine weight: 199 kg. Mikuni Solex N40PHH × 3 side-draft carburetors (40mm gas valve, 32mm venturi). 100L fuel tank.
