• cement
    #93930
    In 1966, with sports cars capable of outrunning Formula 1 cars thanks to much larger and more powerful engines, the FIA increased engine capacity to 3.0 L atmospheric and 1.5 L supercharged engines. Although a few manufacturers had been clamoring for bigger engines, the transition wasn't smooth and 1966 was a transitional year, with 2.0 L versions of the BRM and Coventry-Climax V8 engines being used by several entrants. The appearance of the standard-produced Cosworth DFV in 1967 made it possible for any small manufacturer to join the series with a home-built tub. Supercharging was allowed for the first time since 1960, but it wasn't until 1977 that it became viable, when Renault debuted their new Gordini V6 Turbo. Following their experiences at Indianapolis, in 1971 Lotus made a few unsuccessful experiments with a Pratt & Whitney turbine fitted to chassis which had also 4WD. The power range was between 390 hp (290 kW) to 500 hp (370 kW), turbos 500 hp (370 kW) to 900 hp (670 kW) in race, in qualifying up to 1,500 hp (1,120 kW).

    * Alfa Romeo V8 1.5 L Turbo, V8 3.0 L, Flat-12 3.0 L and V12 3.0 L
    * BMW M12 inline-4 1.5 L Turbo
    * BRM H16 3.0 L and V12 3.0 L
    * Coventry Climax V8 3.0 L (modified FPE engine; one race in the Shannon F1 car)
    * Ferrari V6 1.5 L Turbo, V12 3.0 L and Flat-12 3.0 L
    * Ford V6 1.5 L Turbo and V8 3.0 L (derived from the 4.2 L Indy Car engine)
    * Ford Cosworth DFV V8 3.0 L and DFY V8 3.0 L
    * Hart inline-4 1.5 L Turbo
    * Honda V12 3.0 L, V8 3.0 L air-cooled and V6 1.5 L Turbo
    * Maserati V12 3.0 L
    * Matra V12 3.0 L
    * Motori Moderni V6 1.5 Turbo
    * Repco V8 3.0 L
    * Renault Gordini V8 (never raced) 3.0 L and Gordini V6 1.5 L Turbo
    * Serenissima V8 3.0 L
    * TAG-Porsche V6 1.5 L Turbo
    * Tecno Flat-12 3.0 L
    * Weslake V12 3.0 L
    * Zakspeed inline-4 1.5 L Turbo