In motorsport

See also: Cosworth DFV

2.5 L Coventry Climax FPE on 1954 Kieft F1

Vittorio Jano designed 2.5 L Lancia DS50 on 1956 Ferrari-Lancia D50

A 2004 Cosworth Champ Car World Series V8 engine, capable of generating over 800 hp (597 kW; 811 PS) from 161 cu in (2.6 L)

Renault F1 RS26 (2006), 2,398 cc (146 cu in) V8 engine

For the 2.5 L Formula One era of 1954–1960, two British racing V8s were built in Coventry. One was the Coventry Climax FPE named the Godiva, and the other was the little-known Brooke Weston.^[40] Because of Coventry Climax's decision not to release the engine to Kieft, HWM and Connaught at the time, the Godiva did not debut until 1966 when it raced under the 3 Litre formula on Shannon F1 at the British GP with an enlarged 3 Litre displacement. Brooke Weston DOHC V8 was scheduled to be installed on an ERA, but this did not materialise due to Leslie Johnson's declining health prompted the sale of ERA, which pulled out of the project.

Lancia raced Vittorio Jano designed V8 DS50 engine on Lancia D50 in 1954. When Lancia withdrew from racing in 1955, Ferrari bought the Lancia team and continued to develop it. Juan Manuel Fangio won the 1956 World Drivers' Championship in the DS50-powered Ferrari-Lancia D50.

The 1.5 L Formula One era of 1961–1965 included V8 engines from Ferrari, Coventry Climax, BRM, and ATS. Ferrari, BRM and ATS used their engines in their cars, while Coventry Climax and BRM sold engines to constructors. Apart from Phil Hill's 1961 World Drivers' Championship, which he won in a V6-powered Ferrari, all the other World Drivers' Champions (Graham Hill in 1962, Jim Clark in 1963, John Surtees in 1964, and Clark again in 1965) drove V8-powered cars to their victories. Also, from 1962 to 1965, the top three manufacturers in each season's Manufacturer's Championship all predominantly used V8 engines in their cars.

The first two seasons of the 3.0 L normally aspirated/1.5 L supercharged Formula One era of 1966–1986 were won by Brabham cars with Repco V8 engines. From 1968 to 1981, F1 was largely dominated by teams using the Cosworth DFV engine. During this time, the Manufacturers' Championship was won by Cosworth DFV powered cars every season except 1975, 1976, 1977, and 1979, which were won by 12-cylinder Ferraris. Graham Hill, Jochen Rindt, James Hunt, Mario Andretti, Alan Jones, Nelson Piquet, and Keke Rosberg each won a World Drivers' Championship in a Cosworth DFV powered car, while Emerson Fittipaldi won two and Jackie Stewart won three.

Throughout the 1970s the Cosworth V8 faced stiff competition from the V12/Flat 12 engines of Matra, Ferrari and Alfa Romeo. However, because of the 90 degree V8 design of the Cosworth, it was much lighter, simpler, more fuel efficient and more compact than its 12-cylinder rivals. What kept the Cosworth V8 competitive was because it was a compact, narrow engine it had less frontal area than a V12/flat 12, giving the teams who used it better aero balance resulting in better downforce and straightline speed. In the late-1970s, Lotus used "ground effect" venturi tunnels with "sliding skirts" to enhance roadholding and the Lotus 79 powered by the FV V8 dominated the 1978 season, ending Ferrari's three year dominance of the constructors championship. The Ligier and Brabham also switched from bulky heavy V12s to the DFV during the 1979/1980 seasons. The 15-year-old Cosworth DFVV was narrow and fit the ground effects better than the Ferrari flat 12. The British kit car teams used the old engine to exploit ground effect to win the drivers championship in 1978, 1980, 1981, and 1982.

Between the years 1995 and 2005, all Formula One cars used engines with a 3-litre displacement, by 2005 these were all V10s. Later regulations and safety concerns by the FIA considered speeds were getting too high to be safe, after the complete banning of turbochargers in 1989, the permitted engine size was further reduced to 2.4 L V8. This reduced average power output of the engines from 900 bhp (670 kW), in the 2005 season, to a 2006 season average of approx. 650–750 bhp (480–560 kW) — equivalent to power outputs that were being achieved on 3 L around the 1999/2000 seasons. This also had the effect of reducing overall costs for the teams, an aim pursued by FIA.^[41]

In the 'Top Fuel' class of Drag Racing, V8 engines displacing 500 cu in (8 L) produce up to 10,000 hp (7,457 kW; 10,139 PS).^[42] Based on the Chrysler Hemi and running on highly explosive Nitro-Methane fuel, these powerful units propel the cars from 0-100 mph in 0.8 seconds or less, and from 0–325 mph (0–523 km/h) in under 4.5 seconds. During the race the crankshaft in the engine will turn over less than 1000 times and may then have to be rebuilt.

NASCAR has been dominated by American V8 engines since the introduction of the Oldsmobile Rocket 88 engine.

British BriSCA F1 Stock Cars (and their counterparts from the Netherlands) use American V8 engines for racing; typically Chevrolet small blocks for tarmac tracks and big blocks, displacing as much as 590 cu in (10 L), for racing on shale ovals. V8 Hotstox, which often run at the same fixtures as BriSCA F1 stock cars, tend to use Rover V8 engines of approximately 3.5 litre capacity.

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