BMW 4-Cylinder Engines Return to US in 2011 in the Z4 sDrive28i
Following the announcement in February of the return of a 4-cylinder engine to the US BMW line-up, BMW more reciently announced that the new 2.0-liter TwinPower Turbo 4-Cylinder will first power the Z4 sDrive28i that will arrive in BMW Centers this fall. Like the company's latest TwinPower Turbo 3.0-liter turbo inline-6, the new 2.0-liter engine will combine high pressure direct-injection and BMW's VALVETRONIC intake control (hence the name: TwinPower) with a forced induction system consisting of a single twin-scroll turbocharger. With 240 horsepower and 260 lb-ft of torque, it offers more power and torque than BMW's normally aspirated 3.0-liter inline-6 that it replaces in the Z4 sDrive30i.
The maximum output of 240 horsepower is achieved at 5,000 rpm, 1,500 rpm lower than in the normally-aspirated 3.0-liter inline six. The peak torque of 260 lb-ft, comes on stream at just 1,250 rpm. Not only is that 30% more torque than the aforementioned inline-6, it also peaks 1,500 rpm earlier. The vigorous power comes on early and climbs steadily all the way to redline.
The 4-cylinder engine with its all-aluminum crankcase is lighter and more compact than a 6-cylinder engine of equivalent power. The turbocharger is a twin-scroll system. The exhaust streams leaving the two pairs of cylinders are kept completely separate as they flow through the exhaust manifold and the turbocharger, taking a spiral path to the turbine wheel. This configuration results in very low exhaust back pressure at low engine rpm, and allows the energy of the exhaust gas pulses to be optimally managed and translated into powerful rotation of the turbine blades, without a delay in throttle response.
Even though the wait on a car like this could be a bit excrutiating.., the good news is that Fall is really just a small hop, short skip, and a tiny jump away. The great news is that at Grayson BMW in West Knoxville you can go ahead and pick out your color, your style, and what you would love to put in it or on it. A car with an engine like this is unlikely to always be readily available for you to go ahead and come just grab off of our lot. Besides.., wouldn't you rather put your hart and soul into your own IDEA of what you see this car being. Then when you get the keys in your hand you can see what putting your foot to the floor in a ride like this one will actually do for you.
Go ahead and take a second to stop your body from shaking, slow down your heart rate, and wipe away the sweat from your brow. What BMW has coming is really a step above. They always seem to set the bar for what other car manufactures strive to build. Now all you need to do is contact Andrea Demarco at Grayson BMW 865.209.7273 or email her at ademarco@graysonsales.com and she can go ahead and start the process of getting your heart rate sped back up with the best deal you can get in Knoxville and surrounding cities.