INDY 2022

Car Specifications

Car Specifications

CHASSIS

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 1630 lbs (Road/Street Courses), 1620 lbs (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 and 76.75 inches maximum for ovals) measured outside rim to rim.

Height

Approximately 40 inches

Wheelbase

117.5 to 121.5 inches

Wheel Size

Front 15 inches diameter, 10 inches wide. Minimum weight: 13.48 pounds

Rear 15 inches diameter, 14 inches wide. Minimum weight: 14.7 pounds

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)

ENGINE

Manufacturers

American Honda Motor Co., Inc.,

Models

HI18TT SERIES

Type

2.2-liter (134.25 cubic inches) V-6, twin-turbocharged, Max. bore diameter 95 millimeters

Weight

Minimum weight is 250 pounds

Turbocharging

Twin BorgWarner EFR 7163 turbochargers

RPM

12,000 maximum (INDYCAR-supplied rev limiter)

Maximum Boost Pressure (above atmosphere)

1300 mbar (Superspeedways); 1400 mbar (Indianapolis 500 qualifying); 1500 mbar (short ovals, Road/Street Courses); 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

MMaximum 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