2010 TT Order Guide released
#11
08-13-2009 | 10:03 AM
Thread Starter
| TEAMSPEED.COM
Joined: Nov 2007
Posts: 583
PTV (Porsche Torque Vectoring) is quite simply an eLSD (electronic Limited Slip Differential). Now to make things clear, this car has both PTV and a mechanical LSD.
Let me explain what PTV is.
If you have an open differential (i.e. no LSD, when the wheel with least friction starts spinning, all of the engine torque goes to that spinning wheel, resulting in no movement of the vehicle). What this does, is it brakes the wheel that is spinning thus reducing the slip on that particular wheel and transferring the torque to the other wheel.
Porsche has added PTV on top of the mechanical LSD which essentially does the same thing in reducing slip on the slipping wheel but it does so with help of clutches in the differential itself and not through brakes.
Hope this isn't too technical.
Let me explain what PTV is.
If you have an open differential (i.e. no LSD, when the wheel with least friction starts spinning, all of the engine torque goes to that spinning wheel, resulting in no movement of the vehicle). What this does, is it brakes the wheel that is spinning thus reducing the slip on that particular wheel and transferring the torque to the other wheel.
Porsche has added PTV on top of the mechanical LSD which essentially does the same thing in reducing slip on the slipping wheel but it does so with help of clutches in the differential itself and not through brakes.
Hope this isn't too technical.
Perfect, thanks.
So if this new Turbo was not going to see much track time, would you think there is a need for this $1300 option? If the vehicle already has LSD, and it's a street car, seems like overkill unless you plan to get in some squirrely situations......just sayin'.....
Last edited by Eric (Plug Guy); 08-13-2009 at 10:13 AM.
that is great 
Thread
Thread Starter
Forum
Replies
Last Post
Bookmarks
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)