Monday, December 12, 2011

BMW M5

bmw m5


bmw m5





bmw m5


The LHD, RHD Euro Spec M5s and the ZA spec M5s had the M88/3 powerplant which delivered 286 PS (210 kW; 282 hp) whereas the North American 1988 M5 was equipped with a variant of the M88/3 called the S38 B35 which was equipped with a catalytic converter, which, combined with slightly lower compression of 9.8:1 versus 10.5:1 for the M88/3 reduced the power output to 256 hp (191 kW; 260 PS).The S38 also differed from the M88/3 in that it had a dual-row timing chain as compared to the M88/3's single row timing chain. The S38 B35 was used in the NA-Spec E28 M5 and E24 M6. Late production catalyst equipped versions (117 examples) of the European M635CSi were also equipped with the S38 B35. Initially 500 were to be made for the US Market, BMW later increased production to as many as 1,370 units for the US and Canadian markets, although the generally accepted figure is 1,244 units sold.




bmw m5



* (European) - 286 PS (210 kW; 282 hp) M88/3 Engine with 10.5:1 Compression. European-Spec M5s were available with a myriad of options unavailable on USA-Spec M5s such as Water Buffalo leather and a Glass Moonroof. LHD cars were equipped with 185TR390 Metric Wheels made by Mahle with 220-55VR390 Michelin TRX tires. RHD Cars were equipped with 16x7.5 BBS wheels with 225-50VR16 Tires - these wheels were not shared with any other model. Air Conditioning was standard on UK Supplied M5s and optional on LHD M5s. It is also notable that very early European-Spec LHD M5s had VINs that started with "WBA" instead of the "WBS" designation to indicate BMW Motorsport. it is estimated that no more than 15 M5s were produced with a "WBA" VIN. European-Spec M5s were available in various colors and with or without leather upholstery. At least one UK specification car is known to have been produced with comfort seats.









The early E34 M5 used an evolution of the 24-valve straight-6 found in the E28 M5 and E24 M635CSi/M6. The engine was designated S38B36, with a bore of 93.4 mm (3.677 in) and stroke of 86 mm (3.386 in) for a total capacity of 3,535 cc (215.7 cu in). The added stroke is due to a new forged steel crankshaft, though the camshafts were also changed. Compression ratio was up slightly (10:1 versus 9.8:1). Other adjustments made included an electronically controlled butterfly valve in the intake plenum, which provided better low rpm and mid-range power. The engine also featured an improved flywheel, Bosch Motronic fuel injection, equal length stainless steel exhaust headers, and three way ceramic catalysts. Originally it had a displacement of 3.6 litres, and produced 232 kW (315 PS; 311 bhp), and 360 N·m (266 ft·lbf) at 4750 rpm. Cars sold in North America and Switzerland, due to a different catalytic converter, produced 229 kW (311 PS; 307 bhp).





bmw m5



bmw m5



bmw m5



bmw m5





bmw m5





bmw m5




bmw m5



The new BMW M5 uses the S63 biturbo 4.4Litre V8 with twin scroll turbocharging technology that is found in the BMW X5 M and X6 M,and the version in the BMW M5 is expected to have an output of 560Hp(418 kW)and 502 ft·lb(681 N·m)of torque. Turbocharging the BMW M5 has not gone unnoticed,with long time fans of the BMW M series being disappointed that BMW seems to be moving away from traditionally high displacement naturally aspirated high-revving engines.Increasingly stringent internationalCO2 emissions and fuel consumption regulations are cited as the cause of death of the outgoing model's V10 engine,and the BMW F10 M5 will cutCO2 emissions by25 %.The other advantage of turbocharging is that it generates considerably more low end torque; the N63 biturbo 4.4 Litre V8(the base engine from which theS63 is derived is the M62 from the E38 7 series and E39 5 series)has advantages over theS85 V10 engine despite having fewer cylinders.

bmw m5