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

V8 4.2 40v

Monster INC. Placed in the 2005 and 2006 annual list of Ward's 10 Best Engines

334-553 PS/ 4.0-4.2L / 420-700 N·m / stock performance

Of their eight-cylinder petrol engines, all Volkswagen Group V8 engines are primarily constructed from a lightweight cast aluminium alloy cylinder block (crankcase) and cylinder heads. They all use multi-valve technology, with the valves being operated by two overhead camshafts per cylinder bank (sometimes referred to as 'quad cam'). All functions of engine control are carried out by varying types of Robert Bosch GmbH Motronic electronic engine control units.

These V8 petrol engines initially were only used in cars bearing the Audi marque, but are now also installed in Volkswagen Passenger Cars 'premium models'. They are all longitudinally orientated, and with the exception of the Audi R8, are front-mounted.

We will be skipping the 4.2 V8 32v FSI which was originally placed on the Audi R8

4.2 V8 40v

parts code prefix: 079

engine displacement & engine configuration
4,163 cubic centimetres (254.0 cu in) 90° V8 engine; 90 millimetres (3.54 in) cylinder spacing; bore x stroke: 84.5 by 92.8 millimetres (3.33 in × 3.65 in), stroke ratio: 0.91:1 - undersquare/long-stroke, 520.4 cc per cylinder

cylinder block & crankcase
homogeneous monobloc low-pressure gravity die casting hypereutectic 'Alusil' aluminium-silicon alloy (AlSi17Cu4Mg) with a closed-deck design, mechanically stripped hard silicon crystal integral liners, honed under simulated mechanical stress; five main bearings; die-forged steel crankshaft
cylinder heads & valvetrain
cast aluminium alloy, five valves per cylinder, 40 valves total; lightweight low-friction roller cam followers with automatic hydraulic valve clearance compensation, roller chain-driven double overhead camshafts

synthetic material two-stage variable intake manifold

fuel system & engine management
two linked common rail fuel distributor rails, multi-point electronic sequential indirect fuel injection with eight intake manifold-sited fuel injectors; Bosch Motronic ME 7.1.1. electronic engine control unit (ECU); 98 RON/ROZ (93 AKI) EuroSuperPlus (premium) unleaded recommended for maximum performance and fuel economy

exhaust system
two multi-stage catalytic converters

length: 464 millimetres (18.27 in), mass: 195 kilograms (430 lb)

DIN-rated motive power & torque outputs, ID codes
246 kilowatts (334 PS; 330 bhp) @ 6,600 rpm; 420 newton metres (310 lbf·ft) @ 3,500 rpm, 6,800 rpm max — BAT, BFM, BGH, BGJ
253 kilowatts (344 PS; 339 bhp) @ 7,000 rpm; 410 newton metres (302 lbf·ft) @ 3,500 rpm — Audi S4: BBK (03/03-03/09), BHF (03/06-06/08 - Korea only)
246 kilowatts (334 PS; 330 bhp) @ 6,500 rpm; 430 newton metres (317 lbf·ft) @ 3,500 rpm — Volkswagen Phaeton
Audi B6 S4, Audi B7 S4, Audi A6 (BAT: 04/04-05/06), Audi A8 (BFM: 11/02-05/06), Volkswagen Phaeton (BGJ: 05/03-07/03, BGH: 08/03-05/10)

was placed in the 2004 annual list of Ward's 10 Best Engines

4.0 TFSI[edit]
This new engine is based on the V10 engine from the Audi RS6

engine displacement & engine configuration
3,993 cubic centimetres (243.7 cu in) 90° V8 engine; 90 millimetres (3.54 in) cylinder spacing; bore x stroke: 84.5 by 89.0 millimetres (3.33 in × 3.50 in), stroke ratio: 0.95:1 - undersquare/long-stroke, 499.1 cc per cylinder, compression ratio: 10.5:1
fuel system; Fuel Stratified Injection (FSI)
Central-Overhead Injectors
exhaust system
two twin-scroll turbo chargers and twin air- and water-cooled intercoolers
DIN-rated motive power & torque outputs, ID codes, applications
309 kilowatts (420 PS; 414 bhp) @ 5,800 rpm; 550 newton metres (406 lbf·ft) from 1,400 rpm to 5,300 rpm— BAR: Audi S6 C7 Audi S7 Audi D4 A8
383 kilowatts (521 PS; 514 bhp) @ 6,200 rpm; 650 newton metres (479 lbf·ft) from 1,700 rpm to 5,500 rpm in Audi S8 D4
412 kilowatts (560 PS; 553 bhp) @ 5,700 rpm; 700 newton metres (516 lbf·ft) from 1,750 rpm to 5,500 rpm in Audi RS6 C7 and RS7
Audi version of the engine includes electronic monitoring of the oil level, while Bentley engine includes a dipstick for oil check. In addition, the Bentley engine uses switchable hydraulic mounts instead of Audi's active electrohydraulic engine mounts. The Bentley engine does not include a stop-start system.


Sources : wikipedia
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