At the Cadillac CTS sedan debuts new "turboshesterka"

Cadillac CTS new generation debuts next week at the New York Auto Show. And while the company shared information about the range of engines, the provisions of the beginner. Among them a completely new engine 3.6 V6 VVT DI Twin Turbo (LF3) with two turbochargers, variable valve timing and direct injection.
When working volume in 3564 cubic centimeters it has an output of 420 hp and a torque of 583 N • m (90% of it is available in a range from 2500 rev / min to 5500 rev / min). Americans call novelty thus forced (118 "horses" per liter) six-cylinder engine in the segment of mid-size luxury models.

The new motor is combined with eight "automatic» TL80 (MGG). This bundle allows you to recruit new CTS 60 miles per hour from a place (97 km / h) in 4.6 seconds and develop maksimalku at 274 km / h While the fuel consumption (city / highway) is 13.8 / 9.4 L/100 km (provisional until all parameters).

When designing LF3 engineers took as a basis the general scheme of the existing engine V6 3.6, famous brands ATS and XTS, but rebuilt in the design of almost everything with the actual casting of cylinder block and cylinder heads (all aluminum). LF3 also got a new integrated charge air cooling system with low flow resistance. It was cut drastically the way the air from the turbines to the cylinders, thus improving the response to the gas pedal.

The volume of the intake system in LF3 60% less than in the previous system to the remote intercooler. In this cooler lowers the air temperature before it enters the cylinders more than 75 degrees Celsius with a pressure of 7 kPa (and then boost pressure exceeds 80 kPa, or 0.8 atmospheres).

Another motor presented a new system of direct injection, the new control valves with vacuum driven turbocharger and electronically controlled (one turbine), which allowed more control over the parameters of the turbocharger and maintain a high level of traction at low speeds. Other features worth mentioning reinforced connecting rods, forged crankshaft, polymer coating "skirt" the piston, which at the same time revised the bottom. All together and led to a relatively high rate of efficiency with good traction in a large range of speeds. We add that in addition to the new unit V6 3.6 Twin Turbo CTS chetyrehdverke Americans also dispatched V6 3.6 engine capacity of 321 hp and "turbochetverku" 2.0 272 "horses"....