Chevrolet Indy V6
| Chevrolet Indy V6 | |
|---|---|
| Overview | |
| Manufacturer | Ilmor-Chevrolet |
| Production | 2012-present |
| Combustion chamber | |
| Configuration | V6 engine, 90° cylinder angle |
| Displacement | 2,200 cc (2.2 L; 134.3 cu in) |
| Cylinder bore | 95 mm (3.7 in) |
| Cylinder block alloy | Aluminum alloy |
| Cylinder head alloy | Aluminum alloy |
| Valvetrain | 24-valve, DOHC, four-valves per cylinder |
| Combustion | |
| Turbocharger | Twin-turbocharged |
| Fuel system | Direct fuel injection |
| Management | MES TAG-400i |
| Fuel type | E85 Ethanol provided by Sunoco |
| Oil system | Dry sump |
| Output | |
| Power output | 550-700 hp (410-522 kW) depending on variable turbo boost used at track @ 10500-12200 rpm |
| Torque output | Approx. 410 N·m (302 ft·lbf) @ 8000 rpm |
| Dimensions | |
| Dry weight | 248 lb (112 kg) excluding clutch, ECU, fluids, turbocharger |
| Chronology | |
| Predecessor | Chevrolet Indy V8 (2002-2005) |
The Chevrolet Indy V6 engine is a 2.2-litre Twin-turbocharged V6, developed and produced by Ilmor Engineering-Chevrolet for IndyCar Series. Chevrolet Indy V6 is a highly-success IndyCar Series engine supplier from 2012 to present, scoring 33 IndyCar wins, 35 pole positions, 2 IndyCar Series driver's titles and 3 IndyCar Series manufacturer's titles. On November 12, 2010, Chevrolet was confirmed IndyCar Series return for 2012 season after 6-year absence and designing, developing, assemblying twin-turbo V6 Chevrolet IndyCar engine in partnership with Ilmor Engineering and thus supplying Andretti Autosport, Dragon Racing, Dreyer & Reinbold Racing, Ed Carpenter Racing, KV Racing Technology, Panther Racing, Team Penske, Chip Ganassi Racing and Lazier Partners Racing teams.[1]
Specifications
- Type: Atmospheric engine
- Manufacturer: Ilmor-Chevrolet
- Designation: Chevrolet Indy V6
- Displacement: 2,200 cc (2.2 L; 134.3 cu in)
- Engine position: Mid-engined, longitudinally mounted
- Mounting: Common mounting points on bulkhead and gearbox for all three manufacturers
- Aspiration: Single or twin-turbocharged
- Cylinders: Maximum of six
- Camshafts: Maximum of four
- Cylinder block: Aluminium alloy
- Cylinder head: Aluminium alloy
- Crankshaft: Billet steel, four main bearing caps, one-piece, no lower than 100 mm above the bottom of the chassis
- Valves: Two inlet, two exhaust (mechanically-operated, only. Variable valve timing not permitted)
- Valvetrain: DOHC, 24-valve, four-valves per cylinder
- Connectiong rods: Machined alloy steel
- RPM: 12000 maximum, 12200 on push-to-pass
- V-angle: 60° minimum, 90° maximum
- Bore: 95 mm (3.7 in) diameter maximum
- Stroke: Unsupplied
- Compression ratio: Unsupplied
- Valve actuation: Finger follower
- Valve springs: Wire type
- Intake systems: Single plenum - carbon-fiber
- Pistons: Billet aluminium
- Turbocharger vendor: BorgWarner
- Turbocharger model numbers: EFR9180 (single), EFR7163 (twin)
- Turbocharger weights: 8-8.71 kg (17.6-19.2 lb) (single, depending on the turbine housing used), 4.91-5.1 kg (10.8-11.2 lb) (twin, depending on the turbine housing used)
- Turbocharger boost level: 1.3 bar (19 psi) for Indy 500 and superspeedways, 1.4 bar (20 psi) for 1.5-mile ovals, 1.5-1.6 bar (22-23 psi) for short oval and road courses
- Wastegate: Maximum of two, electronic or pneumatic controlled, vendor chosen by each manufacturer
- Engine management: McLaren TAG-400i
- Ignition type: Digital inductive coil-based
- Ignition vendor: Bosch (Ilmor-Chevrolet)
- Throttle systems: Electronic throttle control
- Exhausts: As built and homologated by each manufacturer
- Lubrication: Dry sump system, featuring both pressure and multi-stage scavenge pumps, with a front-mounted oil tank
- Fuel injectors: Maximum of two per cylinder, vendor chosen by each manufacturer (Direct injection permitted)
- Spark plugs: One per cylinder, vendor chosen by each manufacturer
- Cooling: Single mechanical water pump feeding a single-sided cooling system
- Filter: K&N Engineering
- Weight: 248 lb (112 kg) excluding clutch, ECU, fluids, turbocharger
- Length: 460 mm (18 in)
- Banned engine materials: Alloys containing more than 3 percent/weight beryllium, iridium or rhenium, metal matrix composites, magnesium-based alloys, inter-metallic materials
- Power output: 550-700 hp (410-522 kW) depending on variable turbo boost used at track @ 10500-12200 rpm
- Power rating regulations: 575 hp (429 kW) on superspeedways, 625 hp (466 kW) on 1.5-mile ovals, 675 hp (503 kW) on road/street courses, 700 hp (522 kW) overall depending turbo boost and push-to-pass
- Torque: Approx. 410 N·m (302 ft·lbf)
- Push-to-Pass: Road and street course races
- Fuel pump: Supplied by Dallara
- Fuel pressure: Maximum 300 bar
- Fuel: Sunoco E85 Ethanol
- Fuel mileage: 3 mpg approx.
Applications
References
- ↑ Cavin, Curt (2010-10-12). "Chevrolet to return to IndyCar series in 2012". usatoday.com. Retrieved 2010-10-12.
External links
- Chevrolet on IndyCar.com website
- Chevrolet Motorsport's Official Website
- Chevrolet IndyCar official website on chevrolet.com
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