UPDATE: More info and video added!

The V12 engine and Lamborghini are inseparable; all poster favourites from the Miura to the Countach and Diablo had one behind the seats. These black and white images are of Lamborghini’s all new V12 engine and automated manual gearbox, essentially the heart of the Murciélago successor that’s due next year. Just like the cars from Sant’Agata, be prepared for some dramatic descriptions.

Codenamed L539, the naturally aspirated 6.5-litre V12′s 700 hp is made at 8,250 rpm while 690 Nm max torque is achieved at 5,500 rpm, 500 revs lower than present. It may be high revving with “highly emotional acoustics” but the V12 will also have “a well-rounded torque curve, beefy pulling power and incredibly spontaneous responsiveness”. Compared to the current V12, the L539 has an increased bore (88 mm to 95 mm) but a reduced stroke (89 mm to 76.4 mm). Compression ratio is up to 11.8:1 from 11:1. No direct injection for now.

Developed “from a clean sheet of paper” the 60 degree V12 will be hand built in Sant’Agata Bolognese. To reduce weight (it’s 18 kg lighter at 235 kg), the crankcase and the four-valve cylinder heads are made from aluminum-silicon alloy. The short-stroke layout ensures high-revving performance and low internal friction, with good thermal management (two switchable water circuits for rapid warm-up) and oil circulation (dry-sump lubrication with eight scavenging pumps) to back up.

There also a complex intake system with four individual throttle valves, where air flows through two flaps, several channels and one bypass. The exhaust system is said to deliver a “spine-tingling Lamborghini sound”. It’s a three-into-one system with two separate mufflers – one low-volume, one high-volume – regulated by ECU controlled valves.

The new V12′s perfect mate is the new 7-speed ISR transmission, designed for “the world’s most emotional gearshift feel”. Shift times for this single clutch ‘box are quick – 40% faster than the Gallardo’s e.gear and almost 50% less than dual-clutch unit, says Lambo – thanks to the ISR (Independent Shifting Rod). Instead of taking place in series, as with a conventional gearbox, shifting can occur virtually in parallel. While one shifting rod is moving out of one gear, the second shifting rod can already engage the next. It’s faster because both actions partially overlap and the mechanical distance is shorter as it bypasses neutral.

There are four ISRs in the gearbox, controlled via hydraulic actuators. The double-plate clutch is also hydraulically actuated. Synchronizing rings are made from carbonfibre. The ISR box’ low weight of 70 kg also compares favourably with twin-clutch units. Three modes are available: Strada (with full auto shift shifting, if you want), Sport and the most hardcore Corsa with launch control.

Looks like the Murciélago successor will be very well equipped to be the top bull in the supercar ring! Gallery and a video after the jump.
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