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Twin-turbo is a type of turbo layout in which two turbochargers are used to compress the intake fuel/air mixture (or intake air, in the case of a direct-injection engine). The most common layout features two identical or mirrored turbochargers in parallel, each processing half of a V engine 's produced exhaust through independent piping.
Bi-fuel vehicles are vehicles with multifuel engines capable of running on two fuels. The two fuels are stored in separate tanks and the engine runs on one fuel at a time. On internal combustion engines, a bi-fuel engine typically burns gasoline and a volatile alternate fuel such as natural gas (CNG), LPG, or hydrogen. [1]
The engine uses smaller twin scroll type turbos (for reduced turbo-lag), a bespoke Bosch ECU, a modified intercooler configuration, and dry sump lubrication. It produces 730 PS (537 kW; 720 hp) at 5800 rpm [ 8 ] and 1,000 N⋅m (738 lb⋅ft) of torque at 2250-4500 rpm. [ 8 ]
The Mercedes-Benz M278 [1] is a family of direct injected, Bi-turbocharged, V8 gasoline automotive piston engines. The M278 is derived from the company's previous M273 V8 engine, sharing its bore pitch, aluminium engine block, and Silitec aluminium/silicon low-friction cylinder liners. [2]
3.0 TFSI: twin-scroll single-turbo charged 2.9 TFSI: twin-turbo charged fuel system common rail Fuel Stratified Injection (FSI) high-pressure direct injection DIN-rated motive power & torque outputs, ID codes 3.0 TFSI variants 243 kW (330 PS; 326 bhp) at 5,400–6,400 rpm; 450 N⋅m (332 lbf⋅ft) at 1,340–4,900 rpm - unknown/Porsche variant
For 2014 CLS400, a turbocharged larger displacement variant named DELA 35 came out to the market with a lower boost of 0.7 bar (10 psi) compared to 1.8 bar (26 psi) of DELA30 resulting in the same power and torque ratings at a lower fuel consumption. [5]
Most turbocharged petrol engines use a single turbocharger; however, twin-turbo configurations are also often used. In motor racing, turbochargers were used in various forms of motorsport in the 1970s and 1980s. Since the mid-2010s, turbocharging has returned to several motor racing categories, such as Formula One and the World Rally Championship.
The naturally aspirated 1.0 L 60 PS (44 kW) version became available on the 2012 Fiat Panda and the 500 in select markets, and so two other turbocharged 0.9 L variants: the 80 PS bi-fuel CNG/petrol unit (on Panda, 500L and Ypsilon) and the 105 PS unit (on MiTo, Punto, 500L and 500).