W8 engine

Last updated

A W8 engine is an eight-cylinder piston engine with four banks of two cylinders each, arranged in a W configuration.

Contents

In practice, the W8 engine is created from two narrow-angle (15 degree) VR4 engines mounted at an angle of 72 degrees from each other on a common crankshaft. Thus, the resulting four banks align to form a "W".

W8 engines are much less common than V8 engines, and the only W8 engine to reach production was manufactured by Volkswagen from 2001–2004 north America (but up to 05 and 06 for Euro/JPN)

Volkswagen W8 engine

The sole W8 engine to reach production was the Volkswagen 4-litre W8 engine, [1] which was available in the Volkswagen Passat (B5.5) from September 2001 to September 2004. [2] Production was minimal at only 11,000 units.[ citation needed ]

This engine had a displacement of 3,999 cc (4 L), had a peak power rating of 202 kW (271 hp) at 6,000 rpm and a peak torque rating of 370 N⋅m (273 lb⋅ft) at 2,750 rpm. Power and torque outputs were lower than competitors V8 engines with similar capacity, however the W8 engine was praised for its smoothness. [3] [4]

Sales of the W8-engined Passat models were poor, and production was discontinued when the next generation of Passat switched from a longitudinal engine to a transverse engine layout, which made packaging of the wide W8 engine difficult. The W8 was effectively replaced by the Volkswagen 3.6-litre VR6 petrol engine.

4.0 WR8 32v 202kW

The 'W8' badged engine is an eight-cylinder W engine of four banks of two cylinders, formed by joining two 15° VR4 engines, placed on a single crankshaft, with each cylinder 'double-bank' now at a 72° vee-angle.

identification
parts code prefix: 07D, ID codes: BDN (09/01-09/04), BDP (05/02-09/04)
engine displacement & engine configuration
3,999 cc (244.0 cu in) 72° WR8 engine; bore x stroke: 84.0 mm × 90.2 mm (3.31 in × 3.55 in), stroke ratio: 0.93:1 – undersquare/long-stroke, 499.9 cc per cylinder, compression ratio: 10.8:1
cylinder block & crankcase
cast aluminium alloy with two-part cast aluminium alloy oil sump; five main bearings; die-forged steel crankshaft with split crankpins; Lanchester principle balance shafts one above the other, counter-rotating at twice the crankshaft speed, symmetric to the middle of the crankshaft, upper one driven by a toothed belt
cylinder heads & valvetrain
cast aluminium alloy; four unequal-length valves per cylinder, 32 valves total, low-friction roller finger cam followers with automatic hydraulic valve clearance compensation, simplex roller chain-driven (relay method, using three chains) double overhead camshafts, continuous vane-adjustable variable valve timing for intake and exhaust camshafts with up to 52° variance inlet camshafts and 22° for exhaust camshafts
aspiration
hot-film air mass meter, single throttle body with electronically controlled Bosch 'E-Gas' 'drive by wire' throttle butterfly valve, four-part two-channel cast aluminium resonance intake manifold
fuel system, ignition system, engine management
two linked common rail fuel distributor rails, multi-point electronic sequential indirect fuel injection with eight intake manifold-sited fuel injectors; centrally positioned NGK longlife spark plugs, mapped direct ignition with eight individual direct-acting single spark coils; Bosch Motronic ME electronic engine control unit (ECU), cylinder-selective knock control via four knock sensors, permanent lambda control; 95 RON/ROZ(91 AKI) EuroSuperPlus (premium) unleaded recommended for maximum performance and fuel economy
exhaust system
vacuum-operated secondary air injection pump for direct injection into exhaust ports to assist cold start operation, one cast iron exhaust manifold per cylinder bank with integrated ceramic catalytic converter per cylinder bank, four heated oxygen sensors monitoring pre- and post catalyst exhaust gasses, EU4 compliant
dimensions
mass: 190 kg (419 lb), length: 420 mm (16.5 in) length, width: 710 mm (28.0 in), height: 683 mm (26.9 in)
DIN-rated motive power & torque output
202 kW (275 PS; 271 bhp) at 6,000 rpm; 370 N⋅m (273 lbf⋅ft) at 2,750 rpm (11.6 bar (168 psi) MEP); max. engine speed: 6,400 rpm (19.2  m/s)
references
"Volkswagen Passat W8 4motion – spec sheet" (PDF). CarAndDriver.com. Hachette Filipacchi Media U.S., Inc. Archived from the original (PDF) on 9 June 2011. Retrieved 1 February 2010.
"2002 Volkswagen Passat W8". AutoWeek.com. Crain Communications, Inc. 21 August 2001. Archived from the original on 19 January 2011. Retrieved 1 February 2010.
"Volkswagen Passat W8". evo . Dennis Publishing Ltd. March 2002. Archived from the original on 1 September 2010. Retrieved 1 February 2010.
"VW Passat W8 4motion". WorldCarFans.com. Volkswagen AG. 22 April 2002. Archived from the original on 20 April 2013. Retrieved 1 February 2010.
"W8 voted best technical innovation at the Moscow Motor Show". WorldCarFans.com. Volkswagen AG. 2 December 2001. Archived from the original on 29 July 2013. Retrieved 1 February 2010.

Applications

Awards

was voted 'best technical innovation', and awarded the "Golden Pegasus" by "Za ruljom" at the Moscow Motor Show

See also

Related Research Articles

The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.4 and 2.5 litres. Confusingly, the Ecotec name was also applied to the final DOHC derivatives of the previous GM Family II engine; the architecture was substantially re-engineered for this new Ecotec application produced since 2000. This engine family replaced the GM Family II engine, the GM 122 engine, the Saab H engine, and the Quad 4 engine. It is manufactured in multiple locations, to include Spring Hill Manufacturing, in Spring Hill, Tennessee, with engine blocks and cylinder heads cast at Saginaw Metal Casting Operations in Saginaw, Michigan.

<span class="mw-page-title-main">Chrysler 1.8, 2.0 & 2.4 engine</span> Reciprocating internal combustion engine

The Chrysler 1.8, 2.0, and 2.4 are inline-4 engines designed originally for the Dodge and Plymouth Neon compact car. These engines were loosely based on their predecessors, the Chrysler 2.2 & 2.5 engine, sharing the same 87.5 mm (3.44 in) bore. The engine was developed by Chrysler with input from the Chrysler-Lamborghini team that developed the Chrysler/Lamborghini Formula 1 V12 engine in the early 1990s.

<span class="mw-page-title-main">VR6 engine</span> Reciprocating internal combustion engine

The VR6 engine is a 6-cylinder engine configuration developed by VW. The name VR6 comes from the combination of German words “Verkürzt” and “Reihenmotor” meaning “shortened inline engine”. It was developed specifically for transverse engine installations and FWD vehicles. The VR6 is a highly compact engine, thanks to the narrower angle of 10.5 to 15-degrees between cylinder banks, as opposed to the traditional V6 angles ranging from 45 to 90-degrees. The compact design is cheaper to manufacture, since only one cylinder head is required for all 6 cylinders, much like a traditional inline-6 engine.

<span class="mw-page-title-main">Lamborghini V10</span> Reciprocating internal combustion engine

The Lamborghini V10 is a ninety degree (90°) V10 petrol engine which was developed for the Lamborghini Gallardo automobile, first sold in 2003.

The Hyundai Beta engines are 1.6 L to 2.0 L I4 built in Ulsan, South Korea.

<span class="mw-page-title-main">Toyota S engine</span> Reciprocating internal combustion engine

The Toyota S Series engines are a family of straight-four petrol engines with displacements between 1.8 and 2.2 litres, produced by Toyota Motor Corporation from January 1980 to August 2007. The S series has cast iron engine blocks and aluminium cylinder heads.

<span class="mw-page-title-main">Volkswagen G60 engine</span> Reciprocating internal combustion engine

The Volkswagen G60 and G40 were inline-four cylinder automobile petrol engines, which uses a specific method of forced induction by way of a scroll-type supercharger. The G60 engine was formerly manufactured by the German automaker Volkswagen Group, and was installed in a limited number of their 'hot hatch' cars from their Volkswagen Passenger Cars marque from August 1988 to July 1993.

<span class="mw-page-title-main">Ford I4 DOHC engine</span> Reciprocating internal combustion engine

The Ford I4 DOHC engine is a cast iron block 4-cylinder inline internal combustion engine with twin overhead camshafts, produced by the Ford Motor Company at Dagenham Engine Plant. It was initially available as a 2.0 litre 8-valve version, and later in 2.0 and 2.3 litre 16-valve versions from 1989 to the end of production of the MK2 Ford Galaxy in 2006. It powered various Ford models during this time, but was most well known in the rear-wheel drive "Twin Cam" variants of the Ford Sierra and Ford Scorpio. Despite being built for the company's larger RWD models, Ford also employed the engine in the front-wheel drive Galaxy and the Escort RS 2000 16v.

<span class="mw-page-title-main">Volkswagen D24 engine</span> Reciprocating internal combustion engine

The Volkswagen D24 engine is a 2.4-litre inline-six-cylinder (R6/I6), naturally aspirated diesel engine, formerly manufactured by Volkswagen Group from 1978 to 1995.

<span class="mw-page-title-main">Volkswagen EA827 engine</span> Family of petrol engines

The EA827 family of petrol engines was initially developed by Audi under Ludwig Kraus leadership and introduced in 1972 by the B1-series Audi 80, and went on to power many Volkswagen Group models. This is a very robust water-cooled engine configuration for four- up to eight- cylinders. In Brazil this engine was produced under the name Volkswagen AP AP.

The VR5 engines are a family of petroleum fuelled Internal combustion engines developed by the Volkswagen Group and produced from 1997 to 2006. They are derived from the VR6 engine family, also developed by Volkswagen, but with one less cylinder. The VR5 is a highly compact, thanks to the narrower angle of 15° and a displacement of 2,324 cc. The VR5 was the first production block to use five cylinders in a VR design with a 15-degree angle.

<span class="mw-page-title-main">Volkswagen Passat (B6)</span> Motor vehicle

The Volkswagen Passat is a front-engine D-segment large family car manufactured and marketed by Volkswagen from 2005 to 2011 (B6) and from 2010 to 2015. Respectively the six and seventh generation Passat, and internally designated B6 and B7, they were marketed in sedan and wagon bodystyles in front-wheel as well as all-wheel drive configurations, with a range of petrol and diesel engines.

<span class="mw-page-title-main">Volkswagen R</span> Brand for high-performance Volkswagen models

Volkswagen R is the brand used by the German auto manufacturer Volkswagen to indicate a sport or high performance model. An "R" badge is placed on the grille, front fenders and trunk of R-model vehicles to indicate the vehicle's trim level.

<span class="mw-page-title-main">Volkswagen EA211 engine</span> Reciprocating internal combustion engine

The Volkswagen EA211 engine, also called modular gasoline engine kit, is a family of inline-three and inline-four petrol engines with variable valve timing developed by Volkswagen Group in 2011. They all include a four-stroke engine and dual overhead camshaft drive into exhaust manifolds. In 2023 Škoda Auto a.s. took control over EA211 development, which they have already produced in Mladá Boleslav since 2012.

<span class="mw-page-title-main">Volkswagen Group W-12 engine</span> Reciprocating internal combustion engine

Volkswagen Group have produced a number of W12 internal combustion piston engines for their Volkswagen, Audi, and Bentley marques, since 2001.

<span class="mw-page-title-main">Volkswagen-Audi V8 engine</span> Reciprocating internal combustion engine

The Volkswagen-Audi V8 engine family is a series of mechanically similar, gasoline-powered and diesel-powered, V-8, internal combustion piston engines, developed and produced by the Volkswagen Group, in partnership with Audi, since 1988. They have been used in various Volkswagen Group models, and by numerous Volkswagen-owned companies. The first spark-ignition gasoline V-8 engine configuration was used in the 1988 Audi V8 model; and the first compression-ignition diesel V8 engine configuration was used in the 1999 Audi A8 3.3 TDI Quattro. The V8 gasoline and diesel engines have been used in most Audi, Volkswagen, Porsche, Bentley, and Lamborghini models ever since. The larger-displacement diesel V8 engine configuration has also been used in various Scania commercial vehicles; such as in trucks, buses, and marine (boat) applications.

References

  1. "It Doesn't Get Much Rarer Than a VW Passat W8 Wagon With a Manual". www.roadandtrack.com. 1 May 2018. Retrieved 29 October 2019.
  2. "VW Passat W8 4motion". WorldCarFans.com. Volkswagen AG. 22 April 2002. Archived from the original on 20 April 2013. Retrieved 30 December 2009.
  3. "Volkswagen Passat W8 (2002 - 2005) used car review". www.rac.co.uk. Retrieved 29 October 2019.
  4. "Long-Term Test Verdict: 2003 Volkswagen Passat W8 Sport". www.motortrend.com. Retrieved 29 October 2019.