Porsche 997 GT2RS with GT3 RS wing?!
#15
02-17-2013, 04:36 AM
Surprised everyone is obsessed with the looks, these are Porsche turbos, everything has a function (well most things, the sport chrono is a bit blingy)
Since the 993 GT2 the model has had the side intake vents on the rear spoiler, on the 993 they were to channel outside air through internal pipes to the intake with the main benefit being the temperature of the inatke air would not be affected by entering the engine compartment.
With the 996 GT2 came the idea of feeding the air into an airbox, on the 997 GT2 the carbon airbox is pretty well sealed against the engine lid so at speed the air in the box becomes pressurised and it contributes to relieving pressure on the turbos which gives greater efficiency especially at speed.
edit - here you go I found the factory explanation of my ramblings
Like the previous model, the engine of the new 911 GT2 has two ram air boxes to supply air. In the 911 GT2 (996), these openings were integrated in the vertical wing supports and guided the incoming air to the air cleaner via a shared air box integrated in the rear lid. In the new 911 GT2, this system has been enhanced and improved. The openings are now contained in separate air boxes that are integrated laterally into the wing supports. The openings now have a better position in the air flow and thereby increase their efficiency by increased ram pressure. After the air boxes, the incoming air is guided through two separate intake ports and directly to the air cleaner. This reduces flow resistance.
Ram air technology supports the engine’s air intake, especially at high speeds, by accumulating the air flowing around the vehicle. In the new 911 GT2 turbo engine, some strain is taken off the turbochargers by the slight increase in pressure in front of the compressors, and the exhaust gas backpressure and expulsion work of the pistons is reduced. As a result, the engine power is increased slightly.
Since the 993 GT2 the model has had the side intake vents on the rear spoiler, on the 993 they were to channel outside air through internal pipes to the intake with the main benefit being the temperature of the inatke air would not be affected by entering the engine compartment.
With the 996 GT2 came the idea of feeding the air into an airbox, on the 997 GT2 the carbon airbox is pretty well sealed against the engine lid so at speed the air in the box becomes pressurised and it contributes to relieving pressure on the turbos which gives greater efficiency especially at speed.
edit - here you go I found the factory explanation of my ramblings
Like the previous model, the engine of the new 911 GT2 has two ram air boxes to supply air. In the 911 GT2 (996), these openings were integrated in the vertical wing supports and guided the incoming air to the air cleaner via a shared air box integrated in the rear lid. In the new 911 GT2, this system has been enhanced and improved. The openings are now contained in separate air boxes that are integrated laterally into the wing supports. The openings now have a better position in the air flow and thereby increase their efficiency by increased ram pressure. After the air boxes, the incoming air is guided through two separate intake ports and directly to the air cleaner. This reduces flow resistance.
Ram air technology supports the engine’s air intake, especially at high speeds, by accumulating the air flowing around the vehicle. In the new 911 GT2 turbo engine, some strain is taken off the turbochargers by the slight increase in pressure in front of the compressors, and the exhaust gas backpressure and expulsion work of the pistons is reduced. As a result, the engine power is increased slightly.
#16
02-17-2013, 08:11 AM
Exactly - out of all the 911s, I think the 997 GT2 wing has a more specific role other than downforce. Replacing doesn't make any functional sense, other than looks, and even then it is lacking from the original look IMO.
