drive utilising three 3/8" simplex roller chains, continuous vane-adjustable variable valve timing for intake and exhaust camshafts with up to 42 degrees adjustment aspiration two air filters, two hot-film air mass meters, two cast alloy throttle bodies each with electronically controlled throttle valves, two-stage four-piece die cast magnesium alloy variable tract-length intake manifold utilising electronically map controlled silicon tipped tract length flaps along with tumble flaps inducing a swirling movement in the drawn air fuel system fully demand-controlled and returnless; two fuel tank–mounted low-pressure fuel pumps, Fuel Stratified Injection (FSI): two inlet camshaft double-cam driven single-piston high-pressure injection pumps maintaining a pressure between in the two stainless steel common rail fuel distributor rails with an over-pressure release valve set to , ten combustion chamber sited direct injection solenoid-controlled 65 volt single-hole sequential fuel injectors with integrated swirl plates ignition system & engine management mapped direct ignition with centrally mounted spark plugs and ten individual direct-acting single spark coils; two Bosch Motronic MED 9.1 electronic engine control units (ECUs) working on the 'master and slave' concept due to the high revving nature of the engine, four knock sensors, EU4 emissions standard exhaust system vacuum-controlled secondary air injection into exhaust ports to assist cold start operation, 2-1-2 branch exhaust manifold per cylinder bank ( nominal length) to minimise reverse pulsation of expelled exhaust gases, four close-coupled 600-cell ceramic catalytic converters, eight heated oxygen (lambda) sensors monitoring pre- and post-catalyst exhaust gases dimensions approx. ( less than the BMW S85 with its bore spacing); length: , width: , height: with all components DIN-rated motive power & torque outputs, applications, ID codes Audi S6 — BXA: at 6,800 rpm; at 3,000–4,000 rpm, (over between 2,500 and 5,500 rpm) Audi S8 — BSM: at 7,000 rpm; at 3,500 rpm (90% available from 2,300 rpm), 21.7 m/s maximum piston speed, maximum MEP applications Audi C6 S6 (03/06-08/11), Audi D3 S8 (06/06-07/10) references 5.2 V10 40v FSI (Gallardo LP560-4/Huracán LP610-4/R8) This is the second Lamborghini engine developed by AUDI AG, who became owners of Automobili Lamborghini S.p.A. following the takeover of Lamborghini by the German Volkswagen Group. It is a development of Audi's fundamentally identical 5.2 V10 40v FSI engine as used in the Audi C6 S6 and Audi D3 S8. This variant has been de-tuned for the Audi R8 V10. identification parts code prefix: 07L.Y engine displacement & engine configuration 90° V10 engine; bore x stroke: