The Chevrolet Indy V6 engine is a 2.2-liter, twin-turbocharged, V-6 racing engine, developed and produced by Ilmor Engineering-Chevrolet for the IndyCar Series. Chevrolet has been a highly successful IndyCar Series engine supplier since 2012, scoring 100 IndyCar wins, 35 pole positions, 7 IndyCar Series driver's titles and 7 IndyCar Series manufacturer's titles. On November 12, 2010, Chevrolet confirmed their return to the IndyCar Series 2012 season after 6-year absence. They design, develop, and assemble the twin-turbo V6 Chevrolet IndyCar engine in partnership with Ilmor Engineering, and supply engines to A. J. Foyt Enterprises, Dreyer & Reinbold Racing, Ed Carpenter Racing, Juncos Hollinger Racing, Arrow McLaren and Team Penske teams.[2]
| Chevrolet Indy V-6 | |
|---|---|
| Overview | |
| Manufacturer | Ilmor-Chevrolet |
| Production | 2012–present |
| Layout | |
| Configuration | V-6 engine, 90° cylinder angle |
| Displacement | 2,200 cc (134 cu in) |
| Cylinder bore | 95 mm (3.7 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) later Speedway (2019-2022) later Shell |
| Oil system | Dry sump |
| Output | |
| Power output | 550-735 hp (410-548 kW) @ 10,500-12,200 rpm (depending on variable turbo boost used at track.)[1] |
| Torque output | Approx. 302–370 lb⋅ft (409–502 N⋅m) @ 8000 rpm |
| Dimensions | |
| Dry weight | 248 lb (112 kg) excluding clutch, ECU, fluids, turbocharger |
| Chronology | |
| Predecessor | Chevrolet Indy V8 (2002–2005) |
Specifications edit
- Engine type: Chevrolet V-6 - twin-turbocharged
- Capacity: 2,200 cc (134 cu in)
- HP rating (speedway / 1.5-mile oval / road-street course): 575 hp (429 kW) / 625 hp (466 kW) / 675 hp (503 kW)
- Max. RPM/Rev limiter: 12,000 rpm; 12,200 rpm overtake
- Weight: 248 lbs. (112.5 kg)
- Oil system: Dry-sump lubrication
- Turbocharger: Twin - BorgWarner EFR7163
- Turbocharger boost levels (speedway / 1.5-mile oval / road-street course / push-to-pass): 1.3 bar (19 psi) / 1.4 bar (20 psi) / 1.5–1.6 bar (22–23 psi) / 1.65 bar (24 psi)
- Camshafts: Double-overhead camshafts
- Valve actuation: Finger-follower
- Valve springs: Wire-type
- Cylinder head: 4 valves (titanium) per cylinder
- Fuel injection: Hitachi/Bosch 6x direct in-cylinder fuel. Hitachi/Bosch 6x high pressure port injectors
- Fuel: Sunoco E85 (85% Ethanol, 15% racing gasoline)
- Lubricants: Shell Helix Ultra or Pennzoil Ultra Platinum (Team Penske and rest of teams) and Lucas Oil (Arrow McLaren)
- 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 edit
References edit
- ^ "Chevy Racing & Motorsports: IndyCar Drivers & Schedule". Chevrolet.
- ^ Cavin, Curt (2010-10-12). "Chevrolet to return to IndyCar series in 2012". usatoday.com. Retrieved 2010-10-12.