Audi A8 Long (D4,4H facelift 2013) 4.2 BiTDI V6 clean diesel (385 Hp) quattro Tiptronic 2013

Engine type

6 CYLINDER V-Engine What engine is the 6 cylinder V-engine: it is a an engine is a six-cylinder piston engine where the cylinders share a common crankshaft and are arranged in a V configuration. What is the 6 cylinder V-engine displacement: it is in a range between 1845 cc and 4300 cc in recent model line up powertrain. How much is the power of the 6 cylinders V-engine: the power of the 6 cylinders v-engine is in a range from 102 bhp to 720 bhp. Which cars use 6 cylinder V-engine: V6 is the second most used engine after the 4 inline. Due to their short length, V6 engines are often used as the larger engine option for vehicles, which are otherwise produced with inline-four engines, especially in transverse engine vehicles. All V6 engines-regardless of the V-angle between the cylinder banks-are subject to a primary imbalance caused by each bank consisting of an inline-three engine, due to the odd number of cylinders in each bank. Straight-six engines and flat-six engines do not experience this imbalance. Six-cylinder designs have less pulsation in the power delivery than four-cylinder engines, due to the overlap in the power strokes of the six-cylinder engine. In a four-cylinder engine, only one piston is on a power stroke at any given time. Each piston comes to a complete stop and reverses direction before the next one starts its power stroke, which results in a gap between power strokes, especially at lower engine speeds (RPM). In a six-cylinder engine with an even firing interval, the next piston starts its power stroke 60 degreees before the previous one finishes, which results in smoother delivery of power to the flywheel. What is the six cylinder V-engine V angle: there are many different type related to the angle between the 2 cylinders banks main type are 15, 60, 75, 90, and 120 degreees. 15 degrees (but also a even more narrow 10,5 degreees) used by VW Group for his VR 6 that allow to use only one head for all 6 cylinders. Since 1991, Volkswagen has produced narrow angle VR6 engines with V-angles of 10.5 and 15 degrees. These engines use a single cylinder head shared by both banks of cylinders, in a design similar to the 1922-1976 Lancia V4 engine. The VR6 engines were used in transverse engine front-wheel drive cars which were originally designed for inline-four engines. Due to the minimal extra length and width of the VR6 engine, it could be fitted to the engine compartments relatively easily, in order to provide a displacement increase of 50 percent. Since there is no room in the V between the cylinder banks for an intake system, all the intakes are on one side of the engine, and all the exhausts are on the other side. . 60 degrees used by several manufactures has is the optimal configuration for V6 engines regarding engine balance. When individual crank pins are used for each cylinder, an even firing interval of 120 degrees can be used. This firing interval is a multiple of the 60 degree V-angle, therefore the combustion forces can be balanced through use of the appropriate firing order. The inline-three engine that forms each cylinder bank, however, produces unbalanced rotating and reciprocal forces. These forces remain unbalanced in all V6 engines, often leading to the use of a balance shaft to reduce the vibration. More recent designs often use a three-throw crankshaft with 'flying arms' between the crankpins to allow an even firing interval of 120 degrees to be achieved. A pair of counterweights on the crankshaft can then be used to almost perfectly cancel out the primary forces and reduce the secondary vibrations to acceptable levels. A 60 degree V-angle results in a engine overall than V6 engines with larger V-angles. This angle often results in the overall engine size being a cube shape, making the engine easier to fit either longitudinally or transversely in the engine compartment. 72 degrees used by Mercedes-Benz OM642 BlueTEC diesel engine. This engine uses crank pins offset by 48 degrees, to achieve an even firing interval. 75 degrees used in the Isuzu Rodeo and Isuzu Trooper 1992-2004 v6 engine. These engines were produced in both SOHC and DOHC versions. A 75 degree V6 engine is also used by the 2016-2022 Honda NSX 90 degrees used by many manufacturers, particularly American ones that built V6 engines with a V-angle of 90 degrees based on their existing 90-degree V8 engines. Such configurations were easy to design by removing two cylinders and replacing the V8 engine's four-throw crankshaft with a three-throw crankshaft. This reduced design costs, allowed the new V6 to share components with the V8 engine, and sometimes allowed manufacturers to build the V6 and V8 engines on the same production line. The downsides of a 90 degree design are a wider engine which is more vibration-prone than a 60 degree V6. The initial 90 degree V6 engines (such as the Buick Fireball V6 engine) had three shared crankpins arranged at 120 degrees from each other, due to their origins from the V8 engines. This resulted in an uneven firing order, with half of the cylinders using a firing interval of 90 degrees and other half using an interval of 150 degrees. The uneven firing intervals resulted in rough-running engines with unpleasant vibrations at low engine speeds. Several modern 90 degree V6 engines reduce the vibrations using split crankpins offset by 30 degrees between piston pairs, which creates an even firing interval of 120 degrees for all cylinders. A balance shaft and/or crankshaft counterweights can be used to reduce vibrations in 90 degree V6 engines. 120 degrees used by McLaren M630 V-engine and few others automotive manufacturers. At first glance, 120 degrees might seem to be the optimal V-angle for a V6 engine, since pairs of pistons in alternate banks can share crank pins in a three-throw crankshaft and the combustion forces are balanced by the firing interval being equal to the angle between the cylinder banks. A 120 degree configuration, unlike the 60 degree or 90 degree configurations, would not require crankshafts with flying arms, split crankpins, or seven main bearings to be even-firing. However, the primary imbalance caused by odd number of cylinders in each bank still remains in a 120 degree V6 engine. This differs from the perfect balance achieved by a 90 degree V8 engine with a commonly used crossplane crankshaft, because the inline-four engine in each bank of the V8 engine does not have this primary imbalance. The downside is that a 120 degree design also results in a large width for the engine, being only slightly narrower than a flat-six engine (which does not have the balance problems of the V6 engine). Therefore, the flat-six engine has been used in various automobiles, whereas use of the 120 degree V6 engine has been limited to a few truck and racing car engines, with the exception of McLaren Automotive's M630 V6 engine, which uses a 120 degree bank angle with a single balance shaft to eliminate all primary couples. The McLaren M630 engine also takes advantage of the wide angle by placing the turbochargers inside the vee, commonly referred to as a 'hot vee' configuration. The Ferrari 296 GTB was the first Ferrari road car to sport a V6 turbo with a vee angle of 120 degrees between the cylinder banks. What are the most common firing order in V6 engine: the most used firing order in V6 engine are 1-2-3-4-5-6 or 1-6-5-4-3-2. Source: https://en.wikipedia.org/wiki/V6_engine https://ricksfreeautorepairadvice.com/category/repair-topics/ignition/firing-order-diagrams/ edited by arrabbiaata