Top Speed: Approximately 235 mph
Engine: Twin-turbocharged, 2.2-liter V-6
Horsepower: Approx. 550 – 700 depending on turbo boost.
Gearbox: Assisted six-speed paddle shift plus reverse
Fuel: Sunoco E85 (blend of 85 percent ethanol and 15 percent racing gasoline)
Manufacturer: Dallara Automobili, Italy
Model: Dallara IR-12 Chassis (2012-Present)
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 1620 lbs (Road/Street/Short Ovals) and 1590 lbs (Speedways) (Does not include fuel/driver/drink bottle and contents/driver equivalency weight)
Length: Approximately 201.7 inches
Width: 76.5 inches maximum, 75.5 inches minimum (75.75 inches minimum for ovals) measured outside rim to rim
Height: Approximately 40 inches
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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