Peugeot's direct action
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by John Kendall • CM has learned more details of Peugeot's 2.5-litre direct-injection (DI) diesel which will appear in the Boxer van this summer (CM 23-29 Jan). Initially it will only be available in chargecooled form.
Compared with the current turbocharged engine, power is up 4% while torque rises 3%. Peugeot claims that fuel consumption is up to 17% less than the current turbo-diesel engine in tests with a Boxer 1400. There are no plans to offer the engine in naturally aspirated or turbocharged variants-2.5litre naturally aspirated models will continue to use the existing engine.
The block is derived from the MI DJ5 2.5-litre diesel, fitted to Peugeot Boxer and Citroen Relay vans, as well as Peugeot 605 and Citron XM cars. A new aluminium cylinder head is used which has two valves per cylinder in place of the three-valve layout of the IDI engine. Other features include a Bosch VE fuel pump, Bosch KKK K16 turbocharger and exhaust gas recirculation.
Citroen also uses the current 2.5-litre turbocharged engine in selected Relay models; it seems likely that the company will also switch to the charge-cooled DI engine. LDV uses an older 2.5-litre Peugeot diesel engine in its Convoy models but is not expected to switch to the new engine in the immediate future.
DI engines are gaining popularity in vans because of their greater efficiency and potential for reduced emissions. Recent converts include Mercedes-Benz for the Sprinter and VW for the Transporter; both with fivecylinder DI engines.
Specifications Peugeot Ell5 TED DI OHC charge-cooled diesel engine with two valves per cylinder, and exhaust gas recirculation (EU). Max power:106hp (79kW) at 4,000rpm. Max torque: 173Ibft (23,5tim) at 2,250rpm. Cylinders: Four, in-line.
Bore/stroke: 92x92mm.
Compression ratio: 20:1.
Cam drive: 32mm-wide Dayco toothed belt with automatic hydraulic tensioner. Fuel system. Bosch VE mechanical pump delivering fuel at 750bar via five-hole injectors.