[Landshark]

Originally Posted by Tapani

Check out the latest issue, from page 28 on. Looks partly familiar :-)

http://www.porscheengineering.com/pe...tomermagazine/

/ T

it does look familiar - Porsche did it in 1987 on the 928S4.

"a new, more compact two-stage intake manifold. The last comprised twin resonance chambers or tracts -- one long, one short -- feeding air to the intake pipes via a Y-shaped passage from the throttle body. Below 3,500 rpm the engine breathed only through the long tract; above that, depending on throttle position, a butterfly valve in the second tract opened to increase airflow. Porsche claimed this setup ensured at least 300 pounds/feet of torque from 2,700 to 4,750 rpm, a “fat” torque curve, indeed."

http://auto-howstuffworks.bestgle.co....htm/printable