-
Helio's Castroneves' car -
Sam Hornish Jr. at Sonoma Raceway in 2007 -
Jeff Simmon's car -
Justin Wilson's car -
Mike Conway's car -
Simona De Silvestro's car -
Dallara IR-05 at the Milwaukee Mile in 2007. -
Dallara IR-05 qualifying at the 2011 Indy Japan 300 -
Alex Tagliani's car -
Tony Kanaan's 2004 car -
Takuma Sato's car
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| Category | IndyCar Series |
|---|---|
| Constructor | Dallara |
| Predecessor | Dallara IR-02 |
| Successor | Dallara DW12 |
| Technical specifications | |
| Chassis | Carbon fiber monocoque with honeycomb structure[3] |
| Suspension (front) | double wishbones, pull rod actuated coil springs over shock absorbers |
| Suspension (rear) | double wishbones, pull rod actuated coil springs over shock absorbers |
| Length | 192–196 in (4,877–4,978 mm) |
| Width | 77.5–78.5 in (1,968–1,994 mm) minimum (Road/Street) |
| Wheelbase | 118–122 in (2,997–3,099 mm) |
| Engine | Chevrolet Indy V8 (2003-2005), Honda Indy V8 (2003-2011) Toyota Indy V8 (2003-2005) 3.0–3.5 L (183–214 cu in) 90° N/A V8 with 4-stroke piston Otto cycle mid-engined, longitudinally-mounted |
| Transmission | Xtrac #P295 6-speed sequential (2003-2008) later sequential semi-automatic paddle-shift (2008-2011) + no reverse (2003-2009),[4] later 1 reverse (must have reverse only for road/street courses; 2010-2011) |
| Power | ~ 650 hp (485 kW) (2003-2008)[5] 650 hp (485 kW) + 20 hp (15 kW) on push-to-pass (2009) 650 hp (485 kW) + 40 hp (30 kW) on push-to-pass |
| Weight | 1,525–1,565 lb (692–710 kg)[6] on ovals; 1,600–1,640 lb (726–744 kg) (road and street courses) |
| Fuel | 100% methanol (2003-2005) EPIC 10% ethanol + 90% methanol (2006) EPIC 98% ethanol + 2% gasoline (2007-2009)[7] Sunoco 98% ethanol + 2% gasoline (2010-2011) |
| Lubricants | Various per teams |
| Tyres | Firestone Firehawk |
| Competition history | |
| Debut | 2003 Toyota Indy 300 |
The Dallara IR-03, and its evolution, the Dallara IR-04/05, is an open-wheel formula racing car developed and produced by Italian manufacturer Dallara for use in the IndyCar Series, between 2003 and 2011.[8][9]
Starting from 2007 season, all IndyCar Series entrants (outside the Indy 500) utilized the IR-05 chassis version after Panoz defected to Champ Car World Series to replace Lola as the spec chassis supplier for that series in the same season. In 2009 one year after IndyCar unified with Champ Car all entrants (including entrants for the Indy 500) used the IR-05 making it the only chassis used in IndyCar from 2009 to 2011.
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- ^ "2003 - 2006 Dallara IR-03 Honda Specifications". Ultimatecarpage.com.
- ^ "Dallara Chassis - IndyCar.com". November 24, 2010. Archived from the original on 2010-11-24.
- ^ "Chassis Manufacturers :: IndyCar Series". Archived from the original on 2007-11-03. Retrieved 29 July 2022.
- ^ "IndyCar® Series". May 26, 2005. Archived from the original on 2005-05-26.
- ^ "IndyCar® Series". May 8, 2005. Archived from the original on 2005-05-08.
- ^ "IndyCar® Series". May 19, 2005. Archived from the original on 2005-05-19.
- ^ "IndyCar Series Technical Update Press Conference". Archived from the original on 2007-11-14. Retrieved 29 July 2022.
- ^ "Indy Car".
- ^ "2009 Dallara IR06 News and Information, Research, and Pricing". conceptcarz.com.