McLaren MP4-12C Engine: "Unique power unit"
The McLaren MP4-12C is powered by a twin-turbocharged, 3.8 litre 90⁰ V8 engine - the ‘M838T’. This marks the start of a new era in ‘core’ segment sports cars - smaller capacity, lighter weight, higher efficiency and more economical power units. The engine has the highest specific power output in its segment which, when allied to its low weight carbon composite chassis, delivers exemplary power- and torque- to weight ratios.
‘M838T’ is a unique McLaren power unit, developed specifically for the 12C. It is compact, lightweight, very stiff, and offers an uncompromising combination of high performance and good driveability with excellent economy and CO2 emission values.
Taking power and emissions in combination the 12C delivers its power at greater efficiency than any other car on the market with an internal combustion engine, including hybrids.
‘M838T’ features dual variable valve timing and produces around 600bhp and 600Nm of torque. A dry sump and flat plane crankshaft allow the engine to be placed extremely low in the chassis thereby lowering the centre of gravity and improving handling responses. It also features composite cam covers and intake manifolds, which reduce weight and heat transmission into the charge air.
The engine revs to 8,500rpm, has quick transient throttle response and delivers its abundant torque throughout the rev range. A staggering 80 per cent of torque is available at below 2,000rpm, ensuring great driveability and no need to floor the throttle to deliver performance.