mandrillo66 ha scritto:
1.4 R4 16v TSI/TFSI 90-133kW
Based on the EA111, this new engine was announced at the 2005 Frankfurt Motor Show, to be first used in the Mk5 Golf GT, the 125 kW 1.4 litre TSI engine is a "Twincharger", and uses both a turbocharger and a supercharger. Its displacement downsizing leads to improved fuel economy, with 14% more power than the 2.0 FSI, but consuming 5% less fuel. The mechanical supercharger compressor, driven at 1.5 times the speed of the crankshaft, mainly operates at low engine speeds from tick-over up to 2,400 revolutions per minute (rpm) to increase low-end torque. At engine speeds just above idle, the belt-driven supercharger provides a boost pressure of 1.2 bars (17.4 psi). The turbocharger assumes full effectiveness at middle revs, and the engine map disengages the clutch-controlled supercharger at a maximum upper limit of 3,500 rpm; the supercharger will then be bypassed once the turbocharger spools up and reaches sufficient speed to provide adequate boost in the upper rev-ranges. This engine is made at Volkswagen-Motorenfertigung, Chemnitz.
In 2007, Volkswagen announced the 90 kW model which will replace the 1.6 FSI 85 kW (116 PS; 114 bhp) engine. This engine differs from the 103 kW and 125 kW models in several ways. It uses only one method of forced induction - a turbocharger (and not a supercharger), and has water-cooled intercooler. The engine has reduced frictional losses, optimised camshafts, new intake ports, and new high-pressure injector valves. It is also 14 kilograms (31 lb) lighter than the 125 kW model, in order to improve fuel economy and reduce emissions.
See also: G60
identification
parts code prefix: 03C, ID codes: BLG, BMY, CAXC
engine displacement & engine configuration
1,390 cubic centimetres (84.8 cu in) inline-four engine (R4/I4); bore x stroke: 76.5 by 75.6 millimetres (3.01 in × 2.98 in), stroke ratio: 1.01:1 - 'square engine', 347.5 cc per cylinder, 120 bars (1,740 psi) peak pressures, compression ratio: 10.0:1
cylinder block & crankcase
grey cast iron; 82 mm (3.23 in) cylinder spacing, five main bearings, die-forged steel crankshaft, roller chain-driven oil pump
cylinder head & valvetrain
cast aluminium alloy; four valves per cylinder, 16 valves total, low-friction roller finger cam followers with automatic hydraulic valve clearance compensation, roller chain driven double overhead camshaft (DOHC), continuous adjusting variable intake valve timing
aspiration
hot-film air mass meter, cast alloy throttle body with electronically controlled Bosch "E-Gas" 'drive by wire' throttle butterfly valve
90 to 96 kW variants ? two-part plastic intake manifold, turbocharger incorporated in exhaust manifold with maximum boost pressure 1.8 bars (26.1 psi), water-cooled intercooler integrated into intake manifold
103 to 125 kW variants ? multi-ribbed belt-driven fifth-generation Eaton Roots-type positive displacement supercharger operated by a magnetic clutch integrated in a module inside the water pump, internal step-down ratio on the input end of the synchronisation gear pair, and KKK turbocharger with integrated wastegate connected in series, administrated by a control flap, 2.5 bars (36.3 psi) pressure at 1,500 rpm, front-mounted intercooler (FMIC)
fuel system
fully demand-controlled and returnless; - fuel tank mounted low pressure fuel pump; Fuel Stratified Injection (FSI): camshaft-driven single-piston high-pressure injection pump supplying up to 150 bars (2,180 psi) fuel pressure in common rail fuel rail integrated into the inlet manifold, four combustion chamber sited direct injection sequential solenoid-controlled six-hole fuel injectors, mounted on the intake side between the intake port and cylinder head seal level, homogeneous mixing, stratified lean-burn operation with excess air at part load,
90 to 103 kW variants ? 95 RON ultra-low sulphur unleaded petrol (ULSP)
110 to 125 kW variants ? 98 RON 'Super Unleaded' ultra-low sulphur unleaded petrol (ULSP) - 95 RON may be used, but will result in lower power output
ignition system & engine management
centrally positioned NGK longlife spark plugs, mapped direct ignition with four individual direct-acting single spark coils; Bosch Motronic ME electronic engine control unit (ECU), knock control via a single knock sensor, permanent lambda control
exhaust system
cast iron exhaust manifold (with integrated turbocharger), one catalytic converter, two heated oxygen sensors monitoring pre- and post catalyst exhaust gasses
DIN-rated motive power & torque outputs, ID codes
90 kilowatts (122 PS; 121 bhp); 210 newton metres (155 ft·lbf) @ 1,500-4,000 rpm ? Passat (2009 on)
90 kilowatts (122 PS; 121 bhp); 200 newton metres (148 ft·lbf) @ 1,500-3,500 rpm ? CAXA; Golf Mk5 (2007 on), Tiguan (08/10->), ?koda Octavia Mk2
92 kilowatts (125 PS; 123 bhp); 200 newton metres (148 ft·lbf) @ 1,500-4,000 rpm ? CAXC; Audi A3, SEAT Leon
96 kilowatts (131 PS; 129 bhp); 220 newton metres (162 ft·lbf) @ 1,750-3,500 rpm ? Golf Mk6, VW Jetta V, Passat B6
103 kilowatts (140 PS; 138 bhp); 220 newton metres (162 ft·lbf) ? Touran from early 2006, Golf Mk5
110 kilowatts (150 PS; 148 bhp) @ 5,800 rpm; 240 newton metres (177 ft·lbf) @ 1,750-4,000 rpm ? BMY; VW Golf Mk5, VW Tiguan
118 kilowatts (160 PS; 158 bhp); 240 newton metres (177 ft·lbf) @ 1,750-4,500 rpm ? CAV; Golf Mk6, Scirocco Mk3, VW Jetta TSI Sport,
125 kilowatts (170 PS; 168 bhp) @ 6,000 rpm; 240 newton metres (177 ft·lbf) (MEP 21.7 bar) @ 1,750-4,500 rpm (200 N·m (148 ft·lbf) @ 1,250-6,000 rpm), rev limit: 7,000 rpm ? BLG; Golf Mk5 GT, Jetta, Golf Plus, Touran
133 kilowatts (181 PS; 178 bhp) ???? ? SEAT Ibiza Cupra
applications
2005 VW Golf Mk5, 2006 VW Touran, 2008 Audi A3, 2008 VW Scirocco, possibly in the 2008 VW Concept R, 2007 SEAT León, 2008 ?koda Octavia, 2009 VW Tiguan, 2009 VW Golf Mk6
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