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| Mercedes-Benz | Porsche | Motorcycles & Miscellanea | How Things Work (DIY) Section |
The intentions of this car are evident the moment one glances at the spec sheet. It's a V8 powered, fixed roof SLK. The folding metal artwork has been replaced by a carbon fiber roof. The elimination of the vario roof and the entire roof hydraulics system lowers both the weight and the center of gravity.
The lower weight is complemented by a Black Series specific 55. This one has new headers, different cams, and a higher flow air box. This engine makes 400 horsepower and 520 foot-pounds of torque.
Power is transmitted to the wheels by a standard issue 7G-TRONIC with speedshift, aluminum shift paddles on the steering wheel, and an AMG start button on the shifter.
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The AMG spec springs and dampers have been replaced with AMG Black Series spec parts. The new shocks have adjustable compression and rebound, and the ride height can be adjusted 5 mm in either direction. There is a thick strut tower tying the front together. The 19 inch wheels are Black Series specific and save over 8 pounds per corner when compared with the standard SLK55 wheels.
The additional power and improved suspension is mated with more efficient brakes. The front brakes have six-piston calipers squeezing 360 mm composite discs. The rear brakes are standard issue SLK55 calipers and discs.
The interior is shod with fixed back AMG sport seats with large side bolsters. The seats come in black pearl velour with a silver AMG logo. The new AMG ergonomic sports steering wheel comes in leather and Alcantara and retains it's electronic adjustment. The interior door panels, trim, and roof lining are carbon fiber. The glove compartment has Black Series lettering over carbon fiber trim. Similar lettering is on the trunk lid.
The car has a new front bumper cover. The cover has wider openings, which are used to supply fresh air to the transmission-oil cooler and power steering-oil cooler. In addition, new carbon fiber side outlets are used to increase air flow over the engine-oil coolers. The front wings are now wider and are made of reinforced plastic with ultra-light carbon fiber composite material and feature black outlined air outlets.
The SLK 55 AMG Black Series is manufactured by hand in the Performance Studio. It offers all the features that set a Mercedes-Benz apart: fitness for everyday use, durability, safety and quality.
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Technical Data
| Model | SLK55 AMG Black Series |
| Vehicle type | Two-seat coupe |
| Engine | 90-degree V8 |
| Engine material | aluminum |
| Valvetrain | Chain-driven single overhead camshaft per cylinder bank |
| Valve arrangement | 3-valve technology with two intake and one exhaust valve per cylinder |
| Displacement (cu. in./cc) | 332 / 5,439 |
| Bore (in./mm) | 3.82 / 97.0 |
| Stroke (in./mm) | 3.62 / 92.0 |
| Compression ratio | 11.0:1 |
| Horsepower @ rpm | 400 @ 5,750 |
| Torque (lb-ft.) @ rpm | 383 @ 3,750 |
| Intake system | Magnesium two-stage resonance intake manifold |
| Engine management | ME 2.8 engine control with phase-shifted twin spark ignition, two coils and spark plugs per cylinder, integrated sequential multi-point fuel injection |
| Max. engine speed (rpm) | 6,700 |
| Transmission | AMG SpeedShift seven-speed electronically controlled automatic with driver-adaptive shift logic, Touch Shift manual control, actrive braking downshift, optimum gear function performance modes |
| Gear | Ratio | MPH per 1000 RPM | Maximum speed in gear |
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1
2 3 4 5 6 7 |
4.38:1
2.86:1 1.92:1 1.37:1 1.00:1 0.82:1 0.73:1 |
5.3
8.2 12.2 17 23.3 28.5 32 |
36 MPH @ 6700 RPM
55 MPH @ 6700 RPM 81 MPH @ 6700 RPM 114 MPH @ 6700 RPM 156 MPH @ 6700 RPM 174 MPH @ 6100 RPM * 174 MPH @ 5437 RPM * * electronically limited |
| Final drive | 3.06:1 |
| Suspension | Four-wheel independent |
| Front | Gas strut positioned by one diagonal link and one lateral link, coil springs, shocks, stabilizer bar |
| Rear | Five-link, coil springs, gas-charged shocks, stabilizer bar, anti-lift and anti-squat geometry |
| Steering | Rack and pinion with variable hydraulic power assist |
| Overall ratio | 14.5:1 |
| Turns, lock-to-lock | 2.9 |
| Turning circle | 34.4 feet / 10.48 meters |
| Front Wheels | 8.5x19-in. forged aluminum ultra-light AMG 16-spoke |
| Rear wheels | 9.5x19-in. forged aluminum ultra-light AMG 16-spoke |
| Front tires | 235/35ZR19 92Y Pirelli P Zero Corsa |
| Rear tires | 265/30ZR19 92Y Pirelli P Zero Corsa |
| Brakes | Hydraulic power assisted 4-wheel discs with 4-channel ABS anti-lock; Brake Assist System |
| Front disc diameter (in./mm; type) | 14.2 / 360 vented and cross drilled |
| Rear disc diameter (in./mm; type) | 13.0 / 330 vented and cross drilled |
| Front disc thickness (in./mm) | 1.26 / 32 |
| Rear disc thickness (in./mm) | 0.9 / 22.9 |
| Stability control | Electronic Stability Programming (ESP) integrating single brake application and throttle intervention for yaw control, with ignition and throttle intervention for wheelspin control |
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| Dimensions (in./mm) | |||
| Wheelbase | 95.7 / 2,431 | ||
| Length | 160.9 / 4,087 | ||
| Width (without mirrors) | 70.6 / 1,793 | ||
| Height | 50 / 1,270 | ||
| Front track | 60 / 1,524 | ||
| Rear track | 61 / 1,549 | ||
| Curb weight | 3,295 per EC standards | ||
| Weight Distribution front/rear | 52.8 / 47.2 | ||
| Aerodynamic drag (Cd) | 0.35 with the top up | Capacities | |
| Cabin volume (cu. ft.) | 49 | ||
| Fuel tank (gallons) | 18.5 | ||
| Performance | |||
| 0-100 km/h (seconds) | 4.5 | ||
| Top Speed | electronically limited to 280 km/h (174 mph) | ||
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© 2010 Marcus Blair Fitzhugh
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