Thread: Ladedruck....
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mede8er mede8er is offline
Porsche Junky
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Join Date: Nov 2004
Location: Salida, CO
Posts: 1,804
Originally Posted by 356-930 View Post
What it does is borrow positive pressure from the intake plenum and apply some of that positive pressure to the normally-vented-to-atmosphere port and its isolation diaphragm in the wastegate. The diaphragm acts on the wastegate's boost spring to prevent it from opening at its nominal/normal pressure. The higher the pressure on the normally vented diaphragm is, the higher the boost pressure needed open the wastegate.
Bottom line - more diaphragm pressure, more boost, more compression, more fuel, bigger bang when something lets go.
AHA....yes...get a little over 1 when fully engaged....get .9 when disengaged...just another fun component, hehhehheh....
1986 930 RUF equipped
Old 05-04-2008, 11:17 AM
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