[8] 2013 Bmw M3 Specs In This Week Issue

BMW M4

New BMW M3 and BMW M4 – Engine Photos

Horatiu Boeriu

September 25, 2013 / 1 minutes read

12 comments

Here are some exclusive photos of the new engine found in the BMW M3 and BMW M4: Bi-Turbo Inline 6 Cylinder, 430 hp, 369 lb-ft torque.

The high-revving six-cylinder in-line engine with BMW M TwinPower Turbo technology newly developed for the new BMW M3 Sedan and BMW M4 Coupe produces maximum output of approximately 430 hp. Its peak torque soars far beyond 500 Newton meters (369 lb-ft), out stripping the figures recorded by the outgoing BMW M3 by well over 30 per cent.

And yet the engine also achieves a reduction in fuel consumption and emissions of around 25 per cent. The weight of the cars has been reduced to just under 1,500 kilograms, which helps to ensure outstanding driving dynamics and exceptional efficiency.

The BMW M TwinPower Turbo technology comprises two mono-scroll turbochargers, High Precision Direct Injection, VALVETRONIC variable valve timing and Double-VANOS seamlessly variable camshaft timing. The variable valve and camshaft timing provide fully variable control of intake valve lift. This allows the engine to deliver its power smoothly and efficiently, resulting in lower fuel consumption and emissions.At the same time, throttle response is even sharper than before.The six-cylinder engine features a closed-deck crankcase design, which increases rigidity and allows cylinder pressures tobe increased for maximized power output. And instead of liners, the cylinder bores feature a twin-wire arc-sprayed coating, which results in a significant reduction in engine weight.A further technical highlight is the forged, torsionally rigid crankshaft which, as well as providing increased torque-carrying capacity, is also lighter in weight. Its reduced rotating masses also improve throttle response and acceleration. bmw m3 engineBMW M4 engineS55 Facebook Twitter Email

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