|
The Stick
Join Date: Dec 2007
Location: Someplace Safe?
Posts: 17,328
|
Shape of 911 creates low pressure area at roof. Opening sun roof lets cabin air try to fill low pressure area. If heater ducting is open it will draw air through the exchangers to fill the low pressure from under/the rear of the car. At least that is what I was tolded. Never had a 911 so don't know.
Does not work on water cooled Porsches because it is the circulation of water and not just air that provides the heat.
__________________
Richard aka "The Stick"
06 Cayenne S Titanium Edition
|