Carrera 4 owners how to disengage front axle
#1
Carrera 4 owners how to disengage front axle
If you lift the parking brake one notch on a Carrera 4 (S) you disengage the front axle and turn your car temporarily in a rear wheel drive car!
#4
Poseur
Rennlist Member
Rennlist Member
Saw and heard the same video several months ago. Is that all we have?
For example, can you put that car on a 2WD dyno and 'disable' the front end and make a dyno run?
It just makes me nervous,--that something could be damaged.
For example, can you put that car on a 2WD dyno and 'disable' the front end and make a dyno run?
It just makes me nervous,--that something could be damaged.
#5
Drifting
Was it applicable to 997.1 or 997.2 or both? And did it apply to both automatic and manual transmissions? I recall that there was some limitation mentioned when brought up last time and I don't remember that it was ever fully verified.
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#9
Team Owner
It seems strange to me that they'd design an AWD car in such a manner that the front driveshaft is interrupted/disconnected every time the parking brake is used.
#12
I was under the impression that was affiliated with 4's and PDK.
One thing that comes to mind immediately would be allowing the car to be dyno'd on the most common form of in ground dyno... those being RWD dynos.
Other than that and possibly maintenance of systems I can't imagine why one would want the weight up front without the additional traction up front.
One thing that comes to mind immediately would be allowing the car to be dyno'd on the most common form of in ground dyno... those being RWD dynos.
Other than that and possibly maintenance of systems I can't imagine why one would want the weight up front without the additional traction up front.
#14
Since the car now has an electro magnetic c.diff, most likely all this does is release the clutches completely and essentially "open" the c.diff. When the car is in motion, this would allow the parking brake to lock up the back wheels with minimal disruption to the AWD system. They probably designed the system to do this with the very first click of the parking brake. As long as the parking brake isn't engaged at this point (however minimal) I suppose this is just a way to open the c.diff and alter the handling characteristics of the car. If the parking brake is even slightly engaged at one click, I wouldn't think it's a great idea. Perhaps if this gets enough publicity, Porsche will either make a driver's controlled center differential available in the future (which I doubt they will), or just put an "on/off" in a menu somewhere for the c.diff (maybe a possibility as part of a future sport crono feature). Disclaimer - this is all pure speculation on my part.
#15
Ironman 140.6
Rennlist Member
Rennlist Member
The AWD system in the 996 is a viscous coupling (much different than the system in the 997). I don't see how you could turn it off.