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The Ford Sierra RS Cosworth is a high-performance version of the Ford Sierra that was built by Ford Europe from 1986 to 1992. It was the result of a Ford Motorsport project with the purpose of producing an outright winner for Group A racing in Europe.
The well known Cosworth model was powered by a turbocharged 16-valve 4-cylinder engine known as the 'YB' which was based on the Ford Pinto block. The Ford Sierra RS Cosworth was introduced in 1986 as a three-door hatchback, with a 2-litre DOHC turbo engine producing 204 PS (150 kW; 201 hp) and a top speed of 150 m.p.h. – a speed normally ...
Escort Cosworth engine YBT T34. Maximum power officially from Ford was 227 PS (224 bhp; 167 kW) at 6,250 rpm and 304 N⋅m; 224 lbf⋅ft (31 kg⋅m) of torque at 3,500 rpm [7] on 95 RON petrol and a max speed of 232 km/h (144 mph) (GPS) and 237 km/h (147 mph) without the big rear wing, while 0–100 km/h (62 mph) takes 5.7 sec. Standard boost from Garrett AiResearch T3/T04B turbocharger was 0. ...
He also goes into detail on the powertrain, a Cosworth-built four-cylinder making around 240 horsepower. It gets power to the rear wheels via a six-speed Mazda gearbox from an MX-5 Miata.
With a twin-turbocharged version of the Ford 2.5-liter Duratec V-6 producing 310 horsepower in the early cars (and a very tunable setup), the M12 has mid-engine balance and ferocious performance.
The turbo engine then found its way into the Escort GT (and Lynx RS) during the 1984 model year. As part of the mid-1985 model-year revision, the 1.6-litre engine was enlarged to 1.9 litres, increasing output to 86 hp (64 kW); the high output GT engine offered 108 hp (81 kW) thanks to revised intake manifolds, cylinder heads and real headers.
Ford used technical feedback from the teams racing the XR4Ti to develop the 1986 Ford Sierra RS Cosworth, which first appeared on race tracks in 1987 and was superseded in mid-1987 by the Ford Sierra RS500. Some of the body panels used to stiffen the Sierra chassis and create the Merkur shell were subsequently branded 909 Motorsport parts for ...
A Ford-Cosworth DFV on a 1979 Ligier JS11. Cosworth [1] is a British automotive engineering company founded in London in 1958, specialising in high-performance internal combustion engines, powertrain, and electronics for automobile racing (motorsport) and mainstream automotive industries.