Campaigning the new SAIL, GM launched an advertisements explaining the customers about the internal technical specifications along with the technical pride and resources the company harnessed over the years. The advertisement titled ‘SAIL 1.3 litre SDE SMARTECH Engine’ GM displayed its latest innovation 1.3-litre SDE SMARTECH engine. The new engine offers an output of 78 PS at 4000 rpm. The exclusive research by GM’s Powertrain Division at Turin and with high intellectual resources from GM Pune and GM Banglore, helped in creating the unique engine that delivers high performance, fuel efficiency while maintaining the cost effective profile.
Being a refined version of the award winning 4-cylinder, SDE engine which GM designed in collaboration with Fiat. The new variant has fixed geometry turbochargers which provide powerful drive while maintaining the stability and precision even at low rpm. The turbochargers provide 205Nm of torque at 1750 rpm. GM used light weight material for the body of engine so that the effective friction and weight of the vehicle is maintained. The intake manifold is also designed using light weight plastic which also improved the torque. Mileage of 22.1 kmpl is another improvement in the new version, which the company attained by using Common Rail Fuel injection system. One of the common issues faced by diesel engines include the NVH effects that, if not given attention to, cripple the driving experience. The 1.3-litre SDE SMARTECH engine controls this problem by using low inertia valve trains with hydraulic lash adjusters. The mileage is improved by using DDHC 4 valves per cylinder. The pistons are lightweight and are coated with graphite to reduce friction. The graphite coating is done both on the piston skirts as well as top grooves.
GM claims that the vehicle has increased durability by using fractured connecting rods. In the wake of ecologically concerned engineering, GM created the new engine so as to meet the demands of the planet. The engine is electrically operated and and designed in water EGR mechanism. The NOx emissions are also reduced by using pneumatically controlled bypass valve. Any further emissions are reduced by using closed coupled diesel oxidation catalyst.
On a whole, the Chevrolet's new engine acts as a perfect package for catering the needs of contemporary consumers of the Indian market. The engine is designed creating a perfect balance between fuel efficiency, cost and reliability that GM has been offering since decades.
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