and centrifugal coolant pump, two oil coolers – oil:water and thermostatically controlled oil:air, water-cooled alternator cylinder block & crankcase homogeneous monoblock low-pressure chill die cast hypereutectic 'Alusil' aluminium-silicon alloy (AlSi17Cu4Mg); reinforced by a cast alloy bedplate with six integral GGG50 grey cast iron main bearing caps each affixed by four bolts, web-reinforced inner vee; inner-vee balance shaft eliminating first degree inertial forces, cylinder bore spacing, cylinder bank offset; die-forged steel crossplane crankshaft with pins shared by opposing pistons (contrary to the 5.2 V10 from the S6), cast aluminium alloy oil sump cylinder heads & valvetrain cast aluminium alloy; partition-plate horizontally divided intake ports designed to induce swirl-effect during induction stroke, four valves per cylinder, 40 valves total, low-friction roller finger cam followers with automatic hydraulic valve clearance compensation, double overhead camshaft driven from the rear flywheel end in a relay method using four roller chains, continuous adjusting variable valve timing for intake and exhaust camshafts, plastic-composite cam covers aspiration two air filters, two hot-film air mass meters, two cast alloy throttle bodies each with electronically controlled Bosch "E-Gas" throttle valves, three-part sand-cast magnesium alloy fixed tract-length intake manifold incorporating electronically controlled vacuum-actuated two-stage tumble flaps inducing a swirling movement in the drawn air, 'biturbo': two parallel water-cooled (with reverse flow electric after-run pump) turbochargers integrated into exhaust manifold with electronically controlled vacuum-actuated excess pressure regulation giving a maximum boost of , two side-mounted intercoolers (SMICs) fuel system fully demand-controlled; two fuel tank–mounted low-pressure fuel lift pumps, Fuel Stratified Injection (FSI): two returnless single-piston high-pressure FSI injection pumps driven via roller tappet from a double cam lobe on the inlet camshaft – maintaining a maximum pressure of in the two separate stainless steel common rail fuel distributor rails (one rail per cylinder bank), ten combustion chamber sited direct injection solenoid-controlled sequential fuel injectors ignition system & engine management mapped direct ignition with centrally mounted spark plugs and ten individual direct-acting single spark coils; two Bosch Motronic ME 9.1.2 electronic engine control units (ECUs) working on the master/slave concept due to the high rev limit exhaust system two close-coupled and two main underfloor catalytic converters, eight lambda sensors DIN-rated motive power & torque outputBUH: at 6,250–6,700 rpm; at 1,500–6,250 rpm application Audi C6 RS6 5.0 TFSI quattro (04/08-08/10) reference , 5.2 V10 40v FSI (C6 S6/D3 S8) A first in Audi's history, this new generation high-performance V10 engine is based on Audi's