The Honda Indy V6, officially called the Honda HI12TT/R, 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.
Specifications Engine type: Honda V6 - twin-turbocharged Capacity: HP rating: (depending on turbo boost pressure used at track) Max. RPM/Rev limiter: 12,000 rpm; 12,200 rpm (overtake; push-to-pass) Weight: Oil system: Dry-sump lubrication Turbocharger: Twin - BorgWarner EFR7163 Turbocharger Boost Limits as of 2026 (Oval except Milwaukee / Indy 500 Qualifying, Milwaukee, Road/Street Course / Road/Street Overtake): / / Camshafts: Double-overhead camshafts Valve actuation: Finger-follower Valve springs: Wire-type Cylinder head: 4 valves (titanium) per cylinder Fuel injection: Keihin 6x direct in-cylinder fuel. Keihin 6x high pressure port injectors Fuel: E85 Ethanol provided by Sunoco (2012–2018) and Speedway (2019–2022), E100 Renewable Ethanol provided by Shell V-Power Nitro+ (2023–present) Block & head material: Aluminum Crankshaft: Billet steel Con rods: Billet steel Pistons: Billet aluminum Intake systems: Single plenum - carbon-fiber Throttle systems: Electronic throttle control Electronic control unit: McLaren Electronics - TAG-400I Engine service life: 2,500–2,850 miles Gearbox: Sequential gearbox, paddle-shift
Applications Dallara DW12
References
External links Honda Performance Development official website IndyCar Series official website