Mercedes-Benz SL-Class 2008 Owners Manual - Manual (Page 448)

447
Technical data
Engine
̄
Engine
Model SL 550 (230.471) 1
1 The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
SL 600 (230.477) 1
Engine 273 275
Mode of operation 4-stroke engine, gasoline injection 4-stroke engine, gasoline injection
No. of cylinders 8 12
Bore 3.86 in (98.00 mm) 3.23 in (82.00 mm)
Stroke 3.56 in (90.50 mm) 3.43 in (87.00 mm)
Total piston displacement 333.3 cu in (5461 cm 3 ) 336.4 cu in (5513 cm 3 )
Compression ratio 10.7:1 9:1
Output acc. to SAE J 1349 382 hp/6000 rpm
2
(285 kW/6000 rpm)
2 Premium fuel required. Performance may vary with fuel octane rating.
510 hp/5000 rpm
2
(380 kW/5000 rpm)
Maximum torque acc. to SAE J 1349 391 lb-ft/2800 - 4800 rpm
(530 Nm/2800 - 4800 rpm) 612 lb-ft/1900 - 3500 rpm
(830 Nm/1900 - 3500 rpm)
Maximum engine speed 6500 rpm 5950 rpm
Firing order 1-5-4-2-6-3-7-8 1-12-5-8-3-10-6-7-2-11-4-9
Poly-V-belt 2398 mm 2335 mm