Monday, May 10, 2010

Mercedes-Benz announced new V-6 and V-8 Engine system

Mercedes-Benz the German car manufacturer has its car manufactured with new V-6 and V-8 engine system planned to reduce fuel consumption of fuel system and emissions while increasing output.
Mercedes-Benz 4.7L v8 EngineThe flagship of Mercedes-Benz new engine technology is the 4.7-L V-8 engine system. Formerly displacing 5.5L, the slight down mill offers 12% more power despite the loss of 15% of its displacement. The addition of two turbochargers has a lot to do with this. Both increase the new engines output to 435HP and 516 pound feet, up from 388 HP and 391 pound-feet on the old engine.

In addition to the extra ponies, the two turbos expand the power band and give you maximum torque from just 1800 RPM. At 2000 RPM, the 4.7L engine makes 40% more torque than the old 5.5-L. What's more, you get 443 of those pound-feet all the way from 1600 RPM to 4750 RPM. Mercedes says this new engine makes as much power as a naturally aspirated 7L engine. Throw in 22% better fuel economy, up to 25 mpg combined from 19 mpg previously, and 22% fewer emissions, down to 0.79 pounds of CO2 per mile from 1.02 pound per mile, and you've got a winner.

Mercedes-Benz increased the power output from 272HP 258 pound-feet to 306HP and 273 pound-feet. Meanwhile, Mercedes decreased emissions to 0.63 pounds of CO2 per mile and increased fuel economy 24% to 31 mpg combined, up from 23.5 mpg. The engine is ripe for turbocharging should the need arise. Both are all aluminum and make use of a Start/Stop system to conserve fuel instead of idling. An optimized water pump, on-demand fuel and oil pumps, and an alternator that charges only on rundown all conserve energy, as does a significant reduction in internal friction. An adjustment to transmission shift points and further development of Mercedes' multi-spark ignition and spray guided combustion direct injection systems yield further gains.

The new V-8 will first be seen in the CL-Class in Europe in coming months, followed by the updated S-Class in fall. Mercedes not announced a timeline for the new V-6 engine but it is expected to roll out at the same time as the new V-8. The company has not announced a U.S. rollout plan yet either, but it is expected to follow shortly after the European rollout. It is unknown at this point if Mercedes will change its model designations to reflect the change in V-8 engine displacement, as the company has been inconsistent about such changes in past.

Mercedes-Benz 4.7L v8 EngineMercedes-Benz 4.7L v8 Engine

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