| Honda Indy V6 engine | |
|---|---|
| Overview | |
| Manufacturer |  Honda Racing Corporation USA | 
| Production | 2012–present | 
| Layout | |
| Configuration | V-6 engine, 90° cylinder angle | 
| Displacement | 2.2 L (2,199 cc) | 
| Cylinder bore | 95 mm (3.7 in) | 
| Piston stroke | 51.7 mm (2 in) | 
| Cylinder block material | Aluminum alloy | 
| Cylinder head material | Aluminum alloy | 
| Valvetrain | 24-valve, DOHC, four-valves per cylinder | 
| Combustion | |
| Turbocharger | Twin-turbocharged | 
| Fuel system | Direct-indirect fuel-injection combination | 
| Management | MES TAG-400i | 
| Fuel type | E85 Ethanol provided by Sunoco (2012–2018) and Speedway (2019–2022) E100 Renewable Ethanol provided by Shell V-Power Nitro+ (2023–present) | 
| Oil system | Dry sump | 
| Output | |
| Power output | 550-750 hp (410-560 kW) @ 10,500-12,200 rpm (depending on variable turbo boost used at track) [1] | 
| Torque output | Approx. 410–502 N⋅m (302–370 ft⋅lbf) @ 8000 rpm | 
| Dimensions | |
| Dry weight | 248–250 lb (112–113 kg) excluding clutch, ECU, fluids, turbocharger | 
| Chronology | |
| Predecessor | Honda Indy V8 (2003–2011) | 
The Honda Indy V6, officially called the Honda HI12TT/R, [2] is a 2.2-liter, twin-turbocharged V6 racing engine, developed and produced by Honda Racing Corporation USA, which has been used in the IndyCar Series since 2012. [3] [4] [5]