FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Air Routing




Air Routing

The intake air passes through the air intake duct to the air cleaner, through the throttle section into the variable intake manifold and on to the two cylinder head intake ducts.

Increases in engine output and engine torque, as well as optimization of the engine torque curve are largely dependent on an optimum engine volumetric efficiency over the entire engine speed range.

Long and short intake paths contribute to good volumetric efficiency in the lower and upper speed ranges. Long air intake paths ensure optimum volumetric efficiency in the lower to middle speed ranges. This optimizes the torque curve and increases the torque.

In order to optimize the power increase in the upper speed range, the engine requires short air intake paths for better cylinder filling. The air intake system has been completely redeveloped in order to eliminate this inconsistency in terms of air intake path length.




The air intake system consists of the components as shown in the illustration.