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    • Test numbers for the Mercedes M271 turbocharged four-cylinder in the 2013 R172 SLK250 plus curb weight - 1/4 mile in 14.9@92.3

      Finally some test numbers for the Mercedes-Benz M271 turbo four cylinder motor. The motor is not exactly top of its class in the German direct injected four cylinder arena but the 1.8 liter 201 horsepower motor propels the relatively lightweight 3,325 pound SLK250 well. 0-60 comes in 6.8 seconds and the 1/4 mile in 14.9@92.3. These are not world beating numbers but for an entry level car definitely respectable.


      The M271 unfortunately is fairly weak in comparison to its competition. The BMW N20 2.0 liter direct injected turbo four-cylinder in the Z4 puts out more to the wheels than the Mercedes M271 does at the crank. That is a bit embarrassing. Fortunately, a high powered Mercedes 2.0 liter turbo motor is on the way that promises to set the standard for this engine segment.


      Vehicle: 2013 Mercedes-Benz SLK250
      Odometer: 1,527
      Date: 12/11/2012
      Driver: Chris Walton
      Price: $42,900 (base price)


      Specifications:

      Drive Type: Front engine, rear-wheel drive
      Transmission Type: Seven-speed automatic
      Engine Type: Turbocharged, direct-injected inline-4
      Displacement (cc/cu-in): 1,796
      Redline (rpm): 6,300
      Horsepower (hp @ rpm): 201 @ 5,500
      Torque (lb-ft @ rpm): 229 @ 2,000-4,300
      Brake Type (front): 12.7-inch ventilated discs with single-piston sliding calipers
      Brake Type (rear): 11.8-inch solid discs with single-piston sliding calipers
      Suspension Type (front): Independent, coil spring, single-tube shock absorber
      Suspension Type (rear): Independent multilink, coil spring, single-tube shock absorber
      Tire Size (front): 225/40R18 (92Y)
      Tire Size (rear): 245/35R18 (92Y)
      Tire Brand: Bridgestone
      Tire Model: Potenza S001
      Tire Type: Asymmetrical summer
      As Tested Curb Weight (lb): 3,325


      Test Results:


      Acceleration

      0-30 (sec): 2.4 (2.9 w/ TC on)
      0-45 (sec): 4.2 (4.8 w/ TC on)
      0-60 (sec): 6.8 (7.4 w/ TC on)
      0-60 with 1-ft rollout (sec): 6.5 (7.1 w/ TC on)
      0-75 (sec): 9.9 (10.5 w/ TC on)
      1/4-Mile (sec @ mph): 14.9 @ 92.3 (15.4 @ 92.0 w/ TC on)


      Braking

      30-0 (ft): 28
      60-0 (ft): 112


      Handling

      Slalom (mph): 67.7 (64.3 w/ESC on)
      Skid Pad Lateral Acceleration (g): 0.87 (0.87 w/ESC on)
      Db @ Idle: 45.5
      Db @ Full Throttle: 73.5
      Db @ 70 mph Cruise: 67.5
      Db @ 70 mph Cruise w/ Top Down: 73.8

      RPM @ 70: 2,150

      Source
      This article was originally published in forum thread: Test numbers for the Mercedes M271 turbocharged four-cylinder in the 2013 R172 SLK250 plus curb weight - 1/4 mile in 14.9@92.3 started by Sticky View original post