Wikipedia

BMW M62

BMW M62is anaturally aspiratedV8 petrol engine which was produced from 1995 to 2005.[1]A successor to theBMW M60,the M62 features an aluminium engine block[2]and a single row timing chain.[3]

BMW M62 engine
Overview
Production1995–2005
Layout
Configuration90°V8
Displacement3.5 L (3,498 cc)
4.4 L (4,398 cc)
4.6 L (4,619 cc)
4.8 L (4,837 cc)
Cylinder bore84 mm (3.31 in)
92 mm (3.62 in)
93 mm (3.66 in)
Piston stroke78.9 mm (3.11 in)
82.7 mm (3.26 in)
85 mm (3.35 in)
89 mm (3.50 in)
Cylinder blockmaterialAluminium
Cylinder headmaterialAluminium
ValvetrainDOHC,withVVTon
M62TU versions
Valvetrain drive systemChain
Combustion
Fuel typePetrol
Chronology
PredecessorBMW M60
SuccessorBMW N62

In 1998, a Technical Update included VANOS (variable valve timing) for the intake camshafts.

The S62 engine is theBMW Mhigh performance version of the M62, which was released in theE39 M5,BMW Z8,Ascari KZ1,and theAscari A10.

Design

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Like theBMW M60engine it replaced, the M62 is a DOHC engine withfour valves per cylinder,an aluminum block and aluminum heads. The M62 has fracture-split forged connecting rods,[4]hypereutectic pistons with ferrous coated side skirts. Most of the M62 engines usedAlusilfor the block material,[5]however some early M62 engines usedNikasilcylinder coating instead.[6][7]

Alusil technology integrates silicon throughout the aluminum cast so that liners or treated bores within this block family are not needed.

The M62 uses aBosch Motronic 5.2engine control unit (also called "DME" )[8]and ahot wire MAF.[9]

Technical Update

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In 1998, a "Technical Update" was applied to the M62, resulting in the M62TU variants. New features includesingle-VANOS(variable valve timing for the intake camshaft) andelectronic throttle control.The engine management was updated to Motronic ME7.2.[10][11]

Versions

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Figures specified are for European models.[12][13][14][15][16][17]

Version Displacement Power Torque Redline Year
M62B35 3,498 cc 173 kW (232 hp)
at 5,700 rpm		 320 N⋅m (236 lb⋅ft)
at 3,300 rpm		 6,200 1996
M62TUB35 180 kW (241 hp)
at 5,800 rpm[a]		 345 N⋅m (254 lb⋅ft)
at 3,800 rpm		 1998
M62B44 4,398 cc 210 kW (282 hp)
at 5,700 rpm		 420 N⋅m (310 lb⋅ft)
at 3,900 rpm		 6,100 1996
M62TUB44 210 kW (280 hp)
at 5,400 rpm[b]		 440 N⋅m (325 lb⋅ft)
at 3,600 rpm		 1998
M62TUB46 4,619 cc 255 kW (342 hp)
at 5,700 rpm		 480 N⋅m (354 lb⋅ft)
at 3,700 rpm		 6,500 2001
Alpina F3 250 kW (335 hp)
at 6,000 rpm		 470 N⋅m (347 lb⋅ft)
at 3,700 rpm 		1996
Alpina F4 255 kW (342 hp)
at 6,000 rpm		 480 N⋅m (354 lb⋅ft)
at 3,700 rpm 		2000
Alpina F5 4,837 cc 276 kW (370 hp)
at 6,000 rpm		 510 N⋅m (376 lb⋅ft)
at 3,700 rpm 		2002
S62B50 4,941 cc 294 kW (394 hp)
at 6,600 rpm		 500 N⋅m (369 lb⋅ft)
at 3,800 rpm		 7,000 1998
Racing Dynamics R52 5,161 cc 306 kW (410 hp)
at 6,400 rpm		 514 N⋅m (379 lb⋅ft)
at 3,900 rpm 		7,200 2001
  1. ^175 kW (235 hp) for E38 7 Series models
  2. ^216 kW (290 hp) for 2001-2003 540i models sold in the U.S.

M62B35

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The M62B35 has aboreof 84 mm (3.3 in) and astrokeof 78.9 mm (3.1 in).[3]

Applications:[18]

M62TUB35

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In 1998, the Technical Update was applied, resulting in the M62TUB35.[3]Versions used in the E39 5 Series application have slightly more power than versions used in the E38 7 Series.

Applications:[18]

M62B44

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The M62B44 has a bore of 92 mm (3.6 in) and a stroke of 82.7 mm (3.26 in).

Applications:[18]

M62TUB44

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Technical Update version (M62TUB44)

In 1998, the Technical Update was applied, resulting in the M62TUB44. In the United States, power for TU models was increased to 216 kW (290 hp).[27][28]

Applications:[18]

M62TUB46

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The M62TUB46 is based on the M62TUB44. Revisions include full metal vanos hubs. 10.5mm lift intake and exhaust camshafts. Stronger valve springs. Bore of 93 mm (3.7 in) and stroke of 85 mm (3.3 in). Underdriven crank shaft drive pulley. Two-piece oil scraper ring instead of three-pieces. 93 mm pistons with reduced height due to the increased stroke.

Applications:[18]

Alpina F3

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The Alpina F3 was developed by Alpina and based on the M62B44 engine. Released late in 1996 it used a modified M62B44 block supplied to Alpina from BMW featuring a bore of 93mm. It also featured a modified cylinder head, different intake camshafts, a crankshaft with increased stroke along with different pistons, a different air intake manifold and exhaust manifolds as well as custom engine programming.[30] It has a bore of 93 mm (3.7 in) and a stroke of 85 mm (3.3 in).

Applications:[18]

Alpina F4

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Following with updates to the regular production M62B44 the F4 was a revised version of the Alpina F3 engine and featured variable valve timing on the intake camshafts, an electronically controlled throttle body and a slight increase in power. The Alpina F4 received a revision into the F4/1 in late 2000 which slightly increasedfuel efficiencywhile decreasing its emissions output although power output remained the same.[30] It has a bore of 93 mm (3.7 in) and a stroke of 85 mm (3.3 in).

Applications:[18]

Alpina F5

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The F5 was Alpina's final iteration of the M62B44 engine, it featured all the same technology as the F4/1 but with an increased displacement due to an increased stroke thanks to a modified crankshaft. The increased stroke necessitated an oil pan with additional clearance as well as revised intake camshafts and exhaust camshafts from the M62B46 production engine.[31][32][33]It has a bore of 93 mm (3.7 in) and a stroke of 89 mm (3.5 in).

Applications:[18]

Racing Dynamics R52

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Based on the production M62B44 the Racing Dynamics R52 engine featured a billet crankshaft, special pistons with stock connecting rods and a modified cylinder head which work together to raise the compression ratio to 11.3:1. It also features custom tubular exhaust manifolds, different camshafts and a modified engine computer which lets the engine spin to its 7,200 rpm redline.[34]It has a bore of 94 mm (3.7 in) and a stroke of 93.0 mm (3.7 in).

Applications:[18]

S62

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BMW S62 Engine
Overview
Production1998–2003
Layout
Configuration90°V8
Displacement4.9 L (4,941 cc)
Cylinder bore94 mm (3.7 in)
Piston stroke89 mm (3.50 in)
Cylinder blockmaterialAluminium
Cylinder headmaterialAluminium
ValvetrainDOHCw/VVT
Compression ratio11.0:1
Combustion
FuelsystemManifold injection
Fuel typePetrol
Oil systemDry sump
Output
Power output294–466 kW (400–634 PS; 394–625 hp)
Torque output500–600 N⋅m (369–443 lb⋅ft)
Chronology
SuccessorBMW S65

TheBMW S62engine (full model codeS62B50) is the high-performance variant of the M62, which is fitted to theE39 M5and theE52 Z8.The S62 was BMW's first V8 engine to havedouble-VANOS(variable valve timing on the intake and exhaust camshafts).[35]

The S62 engine produces 294 kW (400 PS; 394 hp) at 6600 rpm and 500 N⋅m (369 lb⋅ft) at 3800 rpm.[36]The redline is 7000 rpm.[37][38]The bore and stroke are 94 mm (3.7 in) and 89 mm (3.5 in) respectively. This results in a displacement of 4,941 cc (301.5 cu in), compared with the 4,398 cc (268.4 cu in) of the largest M62 engine at the time.[35]

Other differences compared to the M62 include:

Like the M62, the S62 has an aluminium block and head. The S62 was assembled atBMW's Dingolfing plant.[39]

Applications:

Bentley Arnage

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The 1998-2000Bentley Arnage (Green Label)is powered by aCosworth-developedtwin-turboversion of the M62B44.[46]This engine produces 260 kW (349 hp) and 569 N⋅m (420 lb⋅ft).[47]

References

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