Car Forum World

Valve management by doubleVANOS operating at low oil pressure.



The V8 power unit inside the engine compartment of the new 2008 BMW M3 Sedan boasts BMWs variable doubleVANOS camshaft management. Offering very fast and responsive valve timing, this technology decreases charge cycle losses and improves the output, torque and answer of the engine in the procedure, with a positive influence also on fuel economy and emission management. concentrating particularly on the new eightcylinder, the engineers at BMW M GmbH indeed worked on a lowpressure variant of doubleVANOS making sure very fast valve timing under normal engine oil pressure.



A separate throttle butterfly for each cylinder is a feature unique not only with racing engines when it comes to attaining greatly natural and direct performance with direct reaction to the gas pedal at all times.



The new power unit features eight individual throttle butterflies, one on each cylinder. In each case two step motors operate the four throttle butterflies on each row of cylinders, giving the engine a especially sensitive answer at low speeds with an direct reaction whenever the driver presses down the accelerator for extra power and performance.

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