![golf r32 sound gta s golf r32 sound gta s](https://www.ozcar.com.au/image_uploads/2016/510231/dsc00087.jpg)
![golf r32 sound gta s golf r32 sound gta s](https://cs2.gamemodding.com/images/7e9702aa2065c622ea7d09ecad320ffaa9628e85e5d1ef231f98642eb470a87f.jpg)
The engine management system is Bosch Motronic.Ī version with four valves per cylinder (for a total of 24 valves) was introduced in 1999. Since the two 'rows' of pistons and cylinders share a single cylinder head and head gasket, the piston crown (or top surface) is tilted. The valve sizes are 39.0 mm (1.54 in) for the intake and 34.3 mm (1.35 in) for the exhaust. The centerline of the cylinders are offset from the centerline of the crankshaft by 12.5 mm (0.49 in). This also allows the use of a 120° firing interval between cylinders. The crankshaft runs in seven main bearings and the journals are offset 22° to one another, in order to accommodate the offset cylinder placement. The V angle between the cylinder banks is 15°, and the compression ratio is 10:1. In 1994, a 2.9 L (177 cu in) ABV version was introduced in some European countries, with an increased bore of 82.0 mm (3.23 in). It had a bore of 81.0 mm (3.19 in) and a stroke of 90.3 millimetres (3.56 in), for a total displacement of 2.8 L (171 cu in). The first Volkswagen VR6 engine uses the AAA version. Therefore the VR6 engine is easier to fit within an engine bay that was originally designed for a four-cylinder engine.Įarly VR6 engines had two valves per cylinder (for a total of twelve valves) and used one camshaft for the intake and exhaust valves of each cylinder bank (without the use of rockers). The narrow angle of 15° between the two cylinder banks reduced the width of the engine, compared to a traditional V6 engine. The Volkswagen VR6 engine was designed for transverse engine installations in front-wheel drive vehicles. Top views of a straight engine (left), V engine (centre) and VR engine (right) The difference in port lengths are compensated for with the length of the runners in the intake manifold, the camshaft overlap and lift profile, or a combination thereof. Without compensation, these varying port lengths would result in the two banks of cylinders producing different amounts of power at a particular engine RPM. Since the cylinders are not located on the centreline of the combined cylinder head, the lengths of the intake and exhaust ports are different for each bank.
![golf r32 sound gta s golf r32 sound gta s](http://4.bp.blogspot.com/-7fMk8wRplDk/Txye2DZuPMI/AAAAAAAADDo/YuwssisweKI/s1600/GTA-San-Andreas-Addon-Nissan-Skyline-R35-GTR_1.jpg)
This simplifies engine construction and reduces costs. Only two camshafts are needed for the engine, regardless of whether the engine has two or four valves per cylinder. VR6 engines share a common cylinder head for the two banks of cylinders. The name VR6 comes from the German initials for a V engine (German: V-Motor) and a straight (inline) engine (German: Reihenmotor), therefore the VR engine is described as a "Vee-Inline engine" (VR-Motor). Diagram showing the differences in port lengths between a V6 and VR6