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The VR6 engine was a six-cylinder engine configuration developed by Volkswagen.The name VR6 comes from the combination of German words “V-Motor” and “Reihenmotor” meaning “inline engine” referring to the VR-engine having characteristics of both a V-layout and a inline layout.
cast aluminium alloy; four unequal-length valves per cylinder, 24 valves total, low-friction roller finger cam followers with automatic hydraulic valve clearance compensation, simplex roller chain-driven double overhead camshaft (DOHC – one camshaft for all exhaust valves, and one for all intake valves), continuous timing adjustment variable ...
2.9 litre 15° VR6; bore × stroke (mm): 82.0 × 90.3 cylinder block & crankcase grey cast iron; seven main bearings, die-forged steel crankshaft cylinder head & valvetrain cast aluminium alloy; two valves per cylinder, 12 valves total, duplex chain-driven double overhead camshafts (DOHC) fuel system & engine management
The Alfa Romeo Twin Spark engine, introduced in the 1987 Alfa Romeo 75, also uses variable valve timing. [3] [4] The Alfa system varies the phase (not the duration) of the cam timing and operates on the inlet camshaft. [5] Alfa Romeo's variator is a cylindrical chamber that contains a pressure chamber and piston along with helical splines.
The 3.0 L (2,960 cc) M104 featured KE-Jetronic fuel injection, cylinder specific ignition-timing, variable valve timing and under-piston cooling jets. Specifications Engine power @ 6400 rpm or 6300 (300E-24 300S 300SL-24): 217 to 228 hp (162 to 170 kW; 220 to 231 PS) (without catalytic converter ).version R129 300SL-24 has 170 kW (231 PS; 228 ...
The crankshaft drives the camshaft (via a timing belt, timing chain or gears), which in turn actuates the intake and exhaust valves. [1] These valves allow the engine to inhale air (or an air/fuel mixture) and exhale the exhaust gasses. [2] The most common devices to transfer the drive are toothed rubber belts, metal timing chains or a set of ...
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