Sonia shows Euro-2 line-up
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by Toby Clark • Scania unveiled a number of engines at the Amsterdam show, completing the Euro-2 lineup for its new 4-series trucks. The DSC9 is a longerstroke 9-litre version of the existing 8.5-litre engine, with several new features: the camshaft drive is at the rear (flywheel) end, the fan is crankshaft mounted, there are two-spring injectors to reduce noise and the main bearings are enlarged. Three power ratings are available: 220, 260 or 310hp.
Scania vice-president Bengt Palmer says the DSC9 is built for an operational life of 1.2m km before overhaul. Unlike the all-new 400hp 12-litre DSC12, the DSC9 has two valves per cylinder and retains mechanical fuel injection—but it will form the basis of Euro-3 models with electronic diesel control (EDC).
Scania also announced a mechanically injected 360hp variant of the 12litre engine, but more surprising was the appearance of a 340hp Euro-2 variant of the DSC11 engine fitted to the 3-series.
Bengt Palmer also revealed that a turbocompound version of the new 12-litre engine is in development. This would be a cost-effective long-distance powerplant, and might ultimately replace the existing 460hp and 530hp 14-litre units.
Scania's Opticruise automatic gearbox will become available throughout the 4series, and its hydrodynamic retarder will be optional with all gearboxes apart from the eight-speed GR801. Later this year 4series mod els will appear with disc brakes all round, while electronically controlled braking (ELB) and airbags might surface at this year's Hanover Show.