C4 & C4S vs. Turbo AWD hardware/electronics...
07-28-2006, 12:03 PM
#1
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Thread Starter
Join Date: May 2001
Location: Hotlanta - NE of the Perimeter
Posts: 12,269
Received 266 Likes
on
153 Posts
C4 & C4S vs. Turbo AWD hardware/electronics...
Anyone know if the AWD hardware & electronics used in the new Turbo are used in the current C4S?
I hadn't read this anywhere that would confirm that Porsche uses the same drive train - only that the new Turbo has a re-designed AWD package as compared to the previous AWD hardware.
I hadn't read this anywhere that would confirm that Porsche uses the same drive train - only that the new Turbo has a re-designed AWD package as compared to the previous AWD hardware.
07-28-2006, 01:12 PM
#2
Burning Brakes
Join Date: Feb 2006
Location: Chicago area, IL USA
Posts: 1,128
Likes: 0
Received 0 Likes
on
0 Posts
They are different, Jay. The 997TT uses an electronically controlled interaxle differential. In the 997 C4/C4S, the interaxle diff is mechanical, using a viscous fluid.
Therefore, rear wheel slip is required in the C4/C4S to move power to the front. In the 997TT, the torque split can be altered electronically before the wheels start to turn, based on ECU/TCU commands.
Other than that, I believe that the 997TT is identical to the C4x platform.
-don
Therefore, rear wheel slip is required in the C4/C4S to move power to the front. In the 997TT, the torque split can be altered electronically before the wheels start to turn, based on ECU/TCU commands.
Other than that, I believe that the 997TT is identical to the C4x platform.
-don
07-28-2006, 01:34 PM
#3
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Thread Starter
Join Date: May 2001
Location: Hotlanta - NE of the Perimeter
Posts: 12,269
Received 266 Likes
on
153 Posts
Thanks Don.
I just finished listening to the explanation on the Porsche website (doh!)
Sorry for the obvious lack of investigation mode there guys.
I just finished listening to the explanation on the Porsche website (doh!)
Sorry for the obvious lack of investigation mode there guys.
