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During 1991 Volvo Car Corporation has introduced the new Volvo 850 GLT model featuring front wheel drive with transverse installation of the engine and gearbox. The powertrain; consists of a new in-line five-cylinder engine in combination with a four speed electronically controlled automatic gearbox or a five speed manual gearbox. The engine features DOHC 20 valves, V-VIS (Volvo Variable Induction System), well tuned exhaust system and microprocessor controlled engine management systems. The engine was designed and developed as a new member of Volvo's modular engine family. The first member was the in-line six-cylinder engine B6304F [1] introduced in 1990. The modular engines have a large number of identical components and the major components are machined in common transfer lines which makes the manufacturing process highly rational and cost-effective.

During 1990, the Volvo Car Corporation will Introduce a new In-line six-cylinder engine featuring three litre displacement, twin overhead camshafts and 24 valves, designated the B6304F. The engine has been designed and adapted for Volvo's top-of-the-line model 960, and it has been developed to meet the market's high demands on comfort, performance, reliability, economy and environmental friendliness. The engine has been designed and manufactured with the help of advanced CAE technology. The engine structure consists of five basic aluminium parts. This construction contributes to the low engine weight of 182 kg including auxiliary units, oil and wiring. The engine's gas flow has been optimized with the help of data simulation and laser measurement technology so as to ensure efficient utilization of energy. Fuel injection and ignition timing are regulated and controlled by an advanced electronic control system, the Bosch Motronic 1.8.