Manufacturers: American Honda Motor Co., Inc., Chevrolet
Models: Honda HI21R Indy-V-6, Chevy IndyCar V6
Type: 2.2-liter (134.25 cubic inches) V-6, twin-turbocharged, Max. bore diameter 95 millimeters
Weight: Minimum weight is 248 pounds
Turbocharging: Twin BorgWarner EFR 7163 turbochargers
RPM: 12,000 maximum (INDYCAR-supplied rev limiter)
Maximum Boost Pressure (above atmosphere): 1300 mbar (Superspeedways); 1500 mbar (short ovals, Road/Street Courses and Indianapolis 500 qualifying); 1650 mbar (Push-To-Pass)
Power: Estimated 550-700 horsepower, depending on turbo boost pressure used at track
Fuel: Speedway E85 fuel (blend of 85 percent ethanol and 15 percent gasoline)
Injectors: Maximum two injectors per cylinder, one for direct injection, 300 bar maximum fuel system pressure
ECU (Engine Control Unit): McLaren Applied Technologies TAG 400i
Throttle: Drive-by-wire controlled port throttles
Manufacturer: Dallara Automobili, Italy
Model: Dallara IR-12 chassis (2012-present) with Dallara IR-18 aero kit.
Construction: Monocoque contains cockpit, fuel cell and front suspension; engine is stressed (integral) member of chassis; rear assembly contains bellhousing, gearbox and rear suspension members
Materials: Carbon fiber, kevlar and other composites
Weight: Approximately 1,700 lbs (Road/Street Courses), 1,690 lbs (Short Ovals) and 1,655 lbs (Speedways) (Does not include fuel, driver, drink bottle and contents and driver equivalency weight)
Length: Approximately 201.7 inches
Width: 76.5 inches maximum, 75.5 inches minimum (75.75 inches minimum and 76.75 inches maximum for ovals) measured outside rim to rim.
Height: Approximately 40 inches
Wheelbase: 117.5 to 121.5 inches
Tires: Firestone Firehawk
Front diameter: 26 inches maximum, 25 inches minimum @ 35 psi
Rear diameter: 27.5 inches maximum, 26.5 inches minimum @ 35 psi
Brakes: PFC CR90 monobloc aluminum calipers with PFC carbon-carbon brake discs and pads.
Gearbox: XTRAC #1011 gearbox. Six forward gears, one reverse gear, Mega-Line Assisted Gear Shift (paddle-shift)
Fuel Cell: Single, rupture-proof cell, 18.5 U.S. gallons (standard)
Firestone Firehawk (ungrooved racing slicks; grooved wet-condittion tires for road/street courses)
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