Audi AG is a German automobile manufacturer that designs, engineers, produces, markets and distributes luxury automobiles. Audioversees worldwide operations from its headquarters in Ingolstadt, Bavaria, Germany. Audi-branded vehicles are produced in nine production facilities worldwide.

Audi has produced some sweet, durable and also very powerful engines along the years. In the last 10 years Audi has always had an engine in the "top ten engines of the year". So keep calm and love Audi !

Audi engines can withstand some decent amounts of hp and torque after tuning, so spending money on your car is a real good investment !

Here is our top Audi Engines list

2.5 TSFI

Our top choice ! Light and fast !

340-408 PS/ 2.5L / 450-480 N·m / stock performance

Top choice for a light sports car ! Decent economy, unparalleled performance output. The are rumors that there will be an ABT version of the 2.5T witch will be tuned up right to 560BHP ! That's giving you 224hp per liter !

2.5 R5 20v TFSI (Audi TTRS, RS3 , RSQ3 & quattro Concept)
An all-new engine designed by AUDI AGs high-performance subsidiary quattro GmbH, harking back to the original turbocharged five cylinder Audi engines in the "Ur-" Audi Quattro of the 1980s. A world first for a petrol engine, its cylinder block is constructed from compacted vermicular graphite cast iron (GJV/CGI) - first used in Audis large displacement, high-performance Turbocharged Direct Injection (TDI) diesel engines.

parts code prefix/variant: 07K3; ID code: CEPA/CEPB

engine displacement & engine configuration
2,480 cubic centimetres (151.3 cu in) inline five engine (R5/I5); bore x stroke: 82.5 by 92.8 millimetres (3.25 in × 3.65 in), stroke ratio: 0.89:1 - undersquare/long-stroke, 496.1 cc per cylinder; 88 mm (3.46 in) cylinder spacing, 144 degree firing interval, firing order: 1-2-4-5-3, compression ratio: 10.0:1

cylinder block & crankcase
GJV-450 compacted vermicular graphite cast iron (GJV/CGI); six main bearings, two-part cast aluminium alloy horizontal-baffled oil sump, simplex roller chain-driven oil pump, die-forged steel crankshaft, forged steel connecting rods, cast aluminium alloy pistons (weight, each, including rings and gudgeon pin: 492 grams (17.4 oz))
cylinder head & valvetrain
cast high hot-strength aluminium alloy, modified inlet duct geometry for high tumble values providing superior knock resistance, four valves per cylinder (exhaust valves sodium filled for increased cooling), 20 valves total, low-friction roller finger cam followers with automatic hydraulic valve clearance compensation, simplex roller chain-driven (relay method) light-weight double overhead camshafts (DOHC), variable valve timing with continuous adjusting intake and exhaust camshaft timing of up to 42 degrees from the crankshaft, two-stage 'valvelift' variable lift control for inlet valves, siamesed inlet ports, Audi "RS" 'red' plastic cam cover

twin charge pressure sensors; one pre-throttle plate, one intake manifold mounted, no air flow meter, cast alloy throttle body with electronically controlled 'drive by wire' throttle butterfly valve, two piece intake manifold with charge movement flaps adjusted by a continuous-action pilot motor, water-cooled turbocharger incorporated in exhaust manifold with 64 mm (2.5 in) diameter outlet, generating up to 1.2 bars (17.4 psi) boost, separated central lower front-mounted intercooler (FMIC)
fuel system
fully demand-controlled and returnless: fuel tank-mounted low-pressure fuel lift pump; Fuel Stratified Injection (FSI): single-piston high-pressure injection pump supplying up to 122 bars (1,770 psi) fuel pressure in the stainless steel common rail fuel rail, five combustion chamber sited direct injection sequential solenoid-controlled fuel injectors, air-guided combustion process, multi-pulse injection with homogeneous mixing, stratified lean-burn operation with excess air at part load, ultra-low sulfur unleaded petrol (ULSP)
ignition system & engine management
Beru longlife spark plugs centrally positioned in combustion chamber, mapped direct ignition with five individual direct-acting single spark coils; Bosch Motronic MED electronic engine control unit (ECU), cylinder-selective knock control via two knock sensors, permanent lambda control
exhaust system
secondary air injection pump for direct injection into exhaust ports to assist cold start operation, cast iron exhaust manifold (with integrated turbocharger), two primary and two main high-flow sports catalytic converters, two heated oxygen sensors monitoring pre- and post-catalyst exhaust gasses, vacuum-operated map-controlled flap-valves mounted in rear exhaust silencer tail pipes
length: 494 millimetres (19.4 in), mass: 185 kilograms (408 lb)
DIN-rated motive power & torque output

250 kilowatts (340 PS; 335 bhp) @ 5,400-6,500 rpm (specific power of 100.8 kW (137.0 PS; 135.2 bhp) per litre); 450 newton metres (332 lbf·ft) @ 1,600-5,300 rpm; redline: 7,100 rpm - RS3 & TTRS
228 kilowatts (310 PS; 306 bhp) @ 5,400-6,500 rpm (specific power of 91.2 kW (124.0 PS; 122.3 bhp) per litre); 465 newton metres (343 lbf·ft) @ 1,600-5,300 rpm; redline: 7,100 rpm - RS Q3
265 kilowatts (360 PS; 355 bhp) @ 5,400-6,500 rpm (specific power of 106.0 kW (144.1 PS; 142.1 bhp) per litre); 465 newton metres (343 lbf·ft) @ 1,600-5,300 rpm; redline: 7,100 rpm - TTRS plus
270 kilowatts (367 PS; 362 bhp) @ 5,400-6,500 rpm (specific power of 108.0 kW (146.8 PS; 144.8 bhp) per litre); 465 newton metres (343 lbf·ft) @ 1,600-5,300 rpm; redline: 7,100 rpm - RS3 2015->
300 kilowatts (408 PS; 402 bhp) @ 5,400-6,500 rpm; 480 newton metres (354 lbf·ft) @ 1,600-5,300 rpm; redline: 8,000 rpm - Audi Quattro Concept
Audi quattro concept (2010), Audi RS3 (2010–2013), Audi TT RS (07/2009->2014), Audi RS Q3 (2013 ->), Audi RS3 (2015 ->)


Sources : wikipedia
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