Ilmor Indy V-6 | |
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Overview | |
Manufacturer | Ilmor |
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 | 550-735 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) |
The ILMOR-Chevrolet Indy V6 engine is a 2.2-liter, twin-turbocharged, V-6 racing engine, developed and produced by Ilmor Engineering 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]
Specifications
- 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: E85 Ethanol provided by Sunoco (2012–2018) and Speedway (2019-2022), E100 Renewable Ethanol provided by Shell V-Power Nitro+ (2023-present)
- 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
References
- ^ "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.