compression ratio MERCEDES-BENZ R320CDI 2007 R171 Owner's Manual

530 Technical data
Engine
ModelR 320 CDI (251.122)1R 350 (251.165)1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Light Truck Center for the corresponding data of all special bodies and special
equipment.
Engine642272
Mode of operationDiesel 4-stroke engine4-stroke engine, gasoline injection
No. of cylinders66
Bore3.27 in (83.00 mm)3.66 in (92.90 mm)
Stroke3.62 in (92.00 mm)3.39 in (86.00 mm)
Total piston displacement182 cu in (2 987 cm3)213cuin (3498cm3)
Compression ratio16.5:110.7:1
Output acc. to SAE J 1349221 hp/3 800 rpm
(165 kW/3 800 rpm)268 hp/6 000 rpm2
(200 kW/6 000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
Maximum torque acc. to SAE J 1349398 lb-ft/1 600 - 2 400 rpm
(540 Nm/1 600 - 2 400 rpm)258 lb-ft/2 400 - 5 000 rpm
(350 Nm/2 400 - 5 000 rpm)
Maximum engine speed4 500 rpm6500 rpm
Firing order1-4-2-5-3-61-4-3-6-2-5
Poly-V-belt2 035 mm2404 mm

531 Technical data
Engine
ModelR 500 (251.175)1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Light Truck Center for the corresponding data of all special bodies and special
equipment.
R 63 AMG (251.177)1
Engine113156
Mode of operation4-stroke engine, gasoline injection4-stroke engine, gasoline injection
No. of cylinders88
Bore3.82 in (97.00 mm)4.02 in (102.20 mm)
Stroke3.31 in (84.00 mm)3.72 in (94.60 mm)
Total piston displacement303 cu in (4 966 cm3)379 cu in (6 208 cm3)
Compression ratio10:111.3:1
Output acc. to SAE J 1349302 hp/5 600 rpm2
(225 kW/5 600 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
503 hp/6 800 rpm2
(375 kW/6 800 rpm)
Maximum torque acc. to SAE J 1349339 lb-ft/2 700 - 4 750 rpm
(460 Nm/2 700 - 4 750 rpm)465 lb-ft/5 200 rpm
(630 Nm/5 200 rpm)
Maximum engine speed6300 rpm7 200 rpm
Firing order1-5-4-2-6-3-7-81-5-4-2-6-3-7-8
Poly-V-belt2370 mm2369 mm