October 15, 1997

THE VOLVO S40 AND V40 2.0 T WITH NEW TURBO TECHNOLOGY - BETTER, FASTER, MORE ECONOMICAL

Thanks to effective use of new turbo technology and an advanced new engine management system, the new Volvo S40 and V40 2.0 T feature not just more engine power, but also enhanced driveability and improved fuel economy.

Volvo's know-how and experience in the field of turbo technology have brought advances in the fields of conventional turbocharging and light-pressure turbos alike. For several years, light-pressure turbos have been used with very good results in both the Volvo 850 and the S70/V70 models - as well as in the Volvo 940.

The introduction of the light-pressure turbo in the S40 and V40, with the T designation, is the next logical step in this development.

Pulses for faster response
Unlike the S40 and V40 T4, whose engines have a somewhat smaller bore in order to increase the distance between the cylinders, the 2.0 T uses the standard 2-litre engine.

The light-pressure turbocharger works at about 60% of the pressure of a conventional turbo , i.e. around 0.6 bar. Together with "twin scroll" technology with twin spiral turbine inlets, this helps to make the 2.0 T the highly responsive, driveable and fuel-efficient engine that it is.

Twin scroll technology is based on the use of two exhaust ducts from each pair of cylinders. These are combined so that the pressure pulses combine to propel the turbine wheel. This means much faster energy transfer than in a single duct. In practice, it means that the response time to the throttle is cut by about half - giving a more willing engine and dependable acceleration in all situations.

The engine has the designation B4204T and develops 160 bhp (118 kW) at 5100 rpm, with a maximum torque of 230 Nm from 1800 rpm up to 4800.

With the manual gearbox, this means 0-100 km/h in 8.5 seconds and a top speed of 215 km/h. The corresponding figures with the automatic transmission are 9.0 seconds and 210 km/h.

Fuel efficient
The new EMS 2000 engine management system has substantially greater capability than earlier systems and can therefore monitor and control even more functions in the engine - faster and with greater precision.

One of the most interesting functions is VEGTC - Virtual Exhaust Gas Temperature Control. Instead of the engine being supplied with extra fuel when driving under high engine load, VEGTC monitors the exhaust temperature carefully and can adjust things such as the charge-air pressure in order to keep the temperature at exactly the right level. This is a very economical system because it makes sure that the petrol is used to drive the car instead of cooling the engine.

EMS 2000 also employs climate compensation, allowing the engine to yield its 160 bhp and 230 Nm regardless of the weather conditions. Here too, the system actively intervenes to adjust the charge-air pressure.

The Volvo S40 and V40 2.0 T are available either with a five-speed manual gearbox or an electronic four-speed automatic transmission with three selectable driving modes. In conjunction with the introduction of the 2.0 T an automatic transmission is also introduced for the high-performance S40 and V40 T4 models. The automatic transmission has been strengthened in order to handle the higher torque in the S40 and V40 T4. To date, this model has only been available with the manual gearbox.

Upgraded chassis for greater comfort combined with more dynamic driving
The chassis and driveability upgrades that come with the development of the S40 and V40 T4, and which all models will benefit from, are in evidence in the S40 and V40 2.0 T, of course.

The powerful ABS brake system with EBD (Electronic Brake Distribution), bigger brake discs and more powerful servo means shorter braking distances with significantly less pedal pressure, without sacrificing directional stability and geometry.

Together with the new front end and improved geometry, as well as rear-end improvements, the car features outstandingly convincing and consistent performance even in difficult situations.

Autumn debut in autumn colour
Like its turbocharged sisters, the 2.0 T has the power where you feel it rather then where you see it. The exterior differences are few. The oval tailpipe, like the 2.0 T badge, gives a hint of the character. Autumn Gold is the new introductory colour. The customer can choose and combine chassis setting, wheels, interior colour scheme and materials as he or she wishes, from the long list of options.

The Volvo S40 and V40 2.0 T will be available at Volvo dealers from the late autumn of 1997.

Web address: http://www.car.volvo.se/