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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. ==Specifications== *Type: Atmospheric engine *Manufacturer: Ilmor-Chevrolet *Designation: Chevrolet Indy V6 *Displacement: *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: 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: excluding clutch, ECU, fluids, turbocharger *Length: *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. *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. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chevrolet Indy V6」の詳細全文を読む スポンサード リンク
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