The Dallara IR-7, and its evolutions, the Dallara IR-8 and Dallara IR-9, are open-wheel formula racing cars, designed, developed, and produced by Italian manufacturer Dallara for use in the IndyCar Series, between 1997 and 1999.[2]

Dallara IR-7
Dallara IR-8[1]
Dallara IR-9
CategoryIndy Racing League
ConstructorDallara
SuccessorDallara IR-00
Technical specifications
ChassisCarbon fiber monocoque with honeycomb structure
Suspension (front)double wishbones, pull rod actuated coil springs over shock absorbers
Suspension (rear)double wishbones, pull rod actuated coil springs over shock absorbers
Length192–196 in (4,877–4,978 mm)
Width77.5–78.5 in (1,968–1,994 mm) minimum (Road/Street)
Wheelbase118–122 in (2,997–3,099 mm)
EngineInfiniti
Oldsmobile
4.0 L (244 cu in) 90° N/A V8 DOHC with 4-stroke piston Otto cycle mid-engined, longitudinally-mounted
TransmissionEmco EGB-16 6-speed sequential
Power~ 700–750 hp (522–559 kW)
Weight1,550 lb (703 kg)
Fuel100% methanol
LubricantsVarious per teams
TyresFirestone Firehawk
Competition history
Debut1997 Indy 200 at Walt Disney World
1999 Indianapolis 500-winning car of Kenny Bräck.

References

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  1. ^ "Dallara IR-8". Retrieved 6 November 2022.
  2. ^ "1997 Dallara IR7". conceptcarz.com.
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