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-   -   4wheel steering for TTS (https://rennlist.com/forums/991-turbo/939792-4wheel-steering-for-tts.html)

white6speed 06-16-2016 06:13 PM

4wheel steering for TTS
 
When did Porsche add 4 wheel steering, what engages it and at what speed does it kick in. Can you really feel it. Thanks

stealthpilot 06-16-2016 07:26 PM


Originally Posted by white6speed
When did Porsche add 4 wheel steering, what engages it and at what speed does it kick in. Can you really feel it. Thanks

It operates at all speeds and you can feel it. It's amazing.

Hothonda 06-16-2016 07:50 PM

This pretty much sums it up I think........

"The 991 Turbo has the rear axle steering. The first Porsche to have the rear axle steering was the 991 GT3. The system was designed for the 991 Turbo in first place, but as the last moment decision it was also incoroprated into the GT3 that was launched before the Turbo. At speeds of up to 50 kmh / 31 mph, the system steers the rear wheels into the opposite direction of the front wheels simplifying manouvering and parking. Between 50-80 kmh / 31-50 mph, the rear wheels are not steered and at speeds above 80 kmh / 50 mph, the system steers the rear wheels parallel to the front wheels, so the car can easily change lane going sideways."

jlee504 06-17-2016 07:43 AM

I think it's amazing as well. It's pretty noticeable when you are hugging turns at faster speeds. I wouldn't get a 911 without it.

white6speed 06-17-2016 10:17 AM

Thanks all

Jean 06-17-2016 09:11 PM

You can read more about it here..
https://www.zf.com/corporate/en_de/p...ease_8737.html



Misplacedyankee 06-23-2016 07:34 PM

I love it. Incredible.


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