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One of the most successful and longest-lived projects of Cosworth has been its Indy car engine program. In 1975; Cosworth developed the DFX, by destroking the engine to 2.65 L and adding a turbocharger, the DFX became the standard engine to run in IndyCar racing, ending the reign of the Offenhauser, and maintaining that position until the late 1980s.
IndyCars with Ford engines first competed in 1935 using a production-based Ford flathead V8 engine in the Miller-Ford racer. [7] [8]With the Offenhauser 4cyl 4.4 litre engine mounted in front-engine roadsters dominating Indy 500 races since the 1930s, and with a British Invasion of successful nimble rear-mid-engine Formula One single seater coming to the US, like two time F1 World Champion ...
The engine won the Indianapolis 500 ten consecutive years from 1978 until 1987, as well as winning all USAC and CART championships between 1977 and 1987 except for one. For a brief time in the early 1980s, some of the DFX engines were badged as Fords. The DFX powered 81 consecutive Indy car victories from 1981 to 1986, and 153 victories total.
Minardi also used re-badged Cosworth engines until 2005. Williams began testing the new CA2006 2.4-litre V8 in November 2005, which produced about 755 bhp @ 19,250 rpm (314.7 hp/L), [24] and began using Cosworth V8 engines for the 2006 season. In the same year, Scuderia Toro Rosso used detuned V10 engines based on the 2005 units.
On April 30, 2011, IndyCar owners voted 15–0 to reject the introduction of multiple Aero Kits for the 2012 season, citing costs. [21] Owners expressed their desire to introduce the new chassis/engines for 2012, but have all participants use the Dallara aerodynamic package in 2012, and delay the introduction of multiple aero kits until 2013.
Formula 1 is the most popular auto racing series, while IndyCar is a North American series. Though the cars look similar, there are differences.
The Chaparral 2K is an open-wheel racing car chassis, designed and built by Lola Cars that competed in the CART open-wheel racing series, for competition in the 1979 IndyCar season, and competed until 1981. It famously won the 1980 Indianapolis 500, being driven by Johnny Rutherford. [4] [5] [6]
Mario Andretti, driving for Newman/Haas, won at Long Beach, the engine's first Indy car victory. He also won the pole position for the 1987 Indianapolis 500. A year later, Rick Mears won the 1988 Indianapolis 500, the engine's first win at Indianapolis. The engine went on to have a stellar record in CART. From 1987 to 1991, the "Chevy-A" engine ...