992 AWD question
Thread Starter
Intermediate
Joined: Feb 2021
Posts: 28
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From: Seoul, Toronto, SoCal & O'ahu
992 AWD question
Hi guys,
I've been searching for but no clue yet.
Do you know the power distribution of Porsche 992 AWD system b/w front and rear wheels?
For example, for Carrera 4 or Carrera 4S, what is the maximum power allocated to the front wheels when needed?
For some other makers, most of power is allocated to rear wheels in normal condition and when desired, the awd system sends as high as 50% (or 40%) of powers to front wheels.
I cannot find any detailed information for Porsche AWD system.
Thanks,
I've been searching for but no clue yet.
Do you know the power distribution of Porsche 992 AWD system b/w front and rear wheels?
For example, for Carrera 4 or Carrera 4S, what is the maximum power allocated to the front wheels when needed?
For some other makers, most of power is allocated to rear wheels in normal condition and when desired, the awd system sends as high as 50% (or 40%) of powers to front wheels.
I cannot find any detailed information for Porsche AWD system.
Thanks,
Popular Reply
Jan 23, 2022, 10:01 AM
RL Community Team
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Rennlist Member
Joined: Jan 2019
Posts: 6,075
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From: Doylestown, PA
In normal conditions/driving, almost no power is directed to the front wheels. Its very much a rear-biased system. As you do lose grip at the rear, the system then begins to variably/incrementally direct (up to 50%) to the front wheels. The rate at which that happens depends upon your selected drive mode.
Per Porsches tech notes, the 992 AWD logic implements a drift mode yes, you can hang out the rear on an AWD 992. Unlike some automakers, Porsche doesnt include a dedicated drift mode option in the PCM. It just works.
The 992s AWD is supposed to be all new over the 991. It certainly feels different when pushed, but I attribute a component of that to software.
If youre on the fence with going AWD, a few thoughts
Now, I am fully aware that some people just prefer RWD and thats totally fine. As with manual over PDK, its an experience preference.
There will be someone that chimes in about steering feel thanks to Henry Catchpoles throwaway comment in the Carfection 992 launch video. To be clear, all 992s have excellent steering feel.
Misconceptions around how the AWD system works has led to heated arguments in the past on the RennList. Traditionalists dismiss the cars despite the reality that Porsche has been making AWD 911s for coming up to 35 years. AWD has been an option for 911s for most of the models history.
If you think that you might be able to utilize the benefits of the 992 AWD system, go for it. Its a great system. If youre building to a budget, you can also easily skip it and still have a great experience.
Per Porsches tech notes, the 992 AWD logic implements a drift mode yes, you can hang out the rear on an AWD 992. Unlike some automakers, Porsche doesnt include a dedicated drift mode option in the PCM. It just works.
The 992s AWD is supposed to be all new over the 991. It certainly feels different when pushed, but I attribute a component of that to software.
If youre on the fence with going AWD, a few thoughts
- Its the only way to get a limited slip diff on the Base Carrera, when specd with PTV+. Yes, all of those RWD Base Carreras are open diff and this is why you occasionally see posts about rear brake wear thats the e diff slowing you down.
- The weight difference is approximately a full tank of gas. A RWD 992 with a full extended tank actually weighs more than an AWD 992.
- Wet mode is substantially more sophisticated on the AWD cars if you plan on driving your car in the wet.
- The system delivers benefits in all weather conditions dry, wet, snow, loose surfaces, etc. This is why the AWD cars are quicker off of the line and beastly in the corners. Its not just for people where it snows.
Now, I am fully aware that some people just prefer RWD and thats totally fine. As with manual over PDK, its an experience preference.
There will be someone that chimes in about steering feel thanks to Henry Catchpoles throwaway comment in the Carfection 992 launch video. To be clear, all 992s have excellent steering feel.
Misconceptions around how the AWD system works has led to heated arguments in the past on the RennList. Traditionalists dismiss the cars despite the reality that Porsche has been making AWD 911s for coming up to 35 years. AWD has been an option for 911s for most of the models history.
If you think that you might be able to utilize the benefits of the 992 AWD system, go for it. Its a great system. If youre building to a budget, you can also easily skip it and still have a great experience.
Thread Starter
Intermediate
Joined: Feb 2021
Posts: 28
Likes: 6
From: Seoul, Toronto, SoCal & O'ahu
I just found the following link for Porsche Traction Management (PTM). Does the red colored sentence mean, PTM sometimes sends 100% of power to the front axle?
The technical basic function of Porsche Traction Management is the same across all model lines: As with a conventional rear-wheel drive, engine power is transmitted directly to the rear axle via the transmission. In principle, this means that every Porsche features the easy-to-control handling of a rear-wheel-drive. A second downforce on the transmission output is directed to a multi-plate clutch, via which the front axle drive can be engaged on a fully variable basis. With this hang-on system, two features in particular truly demonstrate the expertise involved: the intelligent control algorithm and the responsiveness of the system.
https://newsroom.porsche.com/en/innovation/engineering/porsche-traction-management-ptm-all-wheel-drive-agility-stability-traction-driving-dynamics-15050.html
The technical basic function of Porsche Traction Management is the same across all model lines: As with a conventional rear-wheel drive, engine power is transmitted directly to the rear axle via the transmission. In principle, this means that every Porsche features the easy-to-control handling of a rear-wheel-drive. A second downforce on the transmission output is directed to a multi-plate clutch, via which the front axle drive can be engaged on a fully variable basis. With this hang-on system, two features in particular truly demonstrate the expertise involved: the intelligent control algorithm and the responsiveness of the system.
https://newsroom.porsche.com/en/innovation/engineering/porsche-traction-management-ptm-all-wheel-drive-agility-stability-traction-driving-dynamics-15050.html
Last edited by Epeeist; Jan 23, 2022 at 09:21 AM.
Burning Brakes
Joined: Dec 2021
Posts: 904
Likes: 467
https://www.caranddriver.com/reviews...y-the-numbers/
This article from Car & Driver from 2020 claims
up to 50 per cent shuffled from rear to front
This article from Car & Driver from 2020 claims
up to 50 per cent shuffled from rear to front
RL Community Team
Rennlist Member
Rennlist Member
Joined: Jan 2019
Posts: 6,075
Likes: 8,970
From: Doylestown, PA
In normal conditions/driving, almost no power is directed to the front wheels. Its very much a rear-biased system. As you do lose grip at the rear, the system then begins to variably/incrementally direct (up to 50%) to the front wheels. The rate at which that happens depends upon your selected drive mode.
Per Porsches tech notes, the 992 AWD logic implements a drift mode yes, you can hang out the rear on an AWD 992. Unlike some automakers, Porsche doesnt include a dedicated drift mode option in the PCM. It just works.
The 992s AWD is supposed to be all new over the 991. It certainly feels different when pushed, but I attribute a component of that to software.
If youre on the fence with going AWD, a few thoughts
Now, I am fully aware that some people just prefer RWD and thats totally fine. As with manual over PDK, its an experience preference.
There will be someone that chimes in about steering feel thanks to Henry Catchpoles throwaway comment in the Carfection 992 launch video. To be clear, all 992s have excellent steering feel.
Misconceptions around how the AWD system works has led to heated arguments in the past on the RennList. Traditionalists dismiss the cars despite the reality that Porsche has been making AWD 911s for coming up to 35 years. AWD has been an option for 911s for most of the models history.
If you think that you might be able to utilize the benefits of the 992 AWD system, go for it. Its a great system. If youre building to a budget, you can also easily skip it and still have a great experience.
Per Porsches tech notes, the 992 AWD logic implements a drift mode yes, you can hang out the rear on an AWD 992. Unlike some automakers, Porsche doesnt include a dedicated drift mode option in the PCM. It just works.
The 992s AWD is supposed to be all new over the 991. It certainly feels different when pushed, but I attribute a component of that to software.
If youre on the fence with going AWD, a few thoughts
- Its the only way to get a limited slip diff on the Base Carrera, when specd with PTV+. Yes, all of those RWD Base Carreras are open diff and this is why you occasionally see posts about rear brake wear thats the e diff slowing you down.
- The weight difference is approximately a full tank of gas. A RWD 992 with a full extended tank actually weighs more than an AWD 992.
- Wet mode is substantially more sophisticated on the AWD cars if you plan on driving your car in the wet.
- The system delivers benefits in all weather conditions dry, wet, snow, loose surfaces, etc. This is why the AWD cars are quicker off of the line and beastly in the corners. Its not just for people where it snows.
Now, I am fully aware that some people just prefer RWD and thats totally fine. As with manual over PDK, its an experience preference.
There will be someone that chimes in about steering feel thanks to Henry Catchpoles throwaway comment in the Carfection 992 launch video. To be clear, all 992s have excellent steering feel.
Misconceptions around how the AWD system works has led to heated arguments in the past on the RennList. Traditionalists dismiss the cars despite the reality that Porsche has been making AWD 911s for coming up to 35 years. AWD has been an option for 911s for most of the models history.
If you think that you might be able to utilize the benefits of the 992 AWD system, go for it. Its a great system. If youre building to a budget, you can also easily skip it and still have a great experience.
Rennlist Member
Joined: Apr 2021
Posts: 630
Likes: 604
From: Torrance, CA
A perfect description by @detansinn . My own limited experience with my Targa 4 with PVT+ echoes it. Cornering at speed is when I feel it the most. I have a hard time explaining what it does. I can definitely feel the car dynamic change ever so slightly, with the grip and power delivery making curves really fun.
I do notice more brake dust on the rears than the fronts. That's just after a few hundred miles.
I do notice more brake dust on the rears than the fronts. That's just after a few hundred miles.
Thread Starter
Intermediate
Joined: Feb 2021
Posts: 28
Likes: 6
From: Seoul, Toronto, SoCal & O'ahu
Very detailed, sophisticated answer!
thanks a lot for your very detailed, sophisticated answer.
I did not no there is an improvement (or change you may want to call) in 992's awd compared with 991's because the latest official information on porsch awd system was in 2018.
anyway thanks again.
cheers!
https://newsroom.porsche.com/en/inno...ics-15050.html
I did not no there is an improvement (or change you may want to call) in 992's awd compared with 991's because the latest official information on porsch awd system was in 2018.
anyway thanks again.
cheers!
https://newsroom.porsche.com/en/inno...ics-15050.html
In normal conditions/driving, almost no power is directed to the front wheels. Its very much a rear-biased system. As you do lose grip at the rear, the system then begins to variably/incrementally direct (up to 50%) to the front wheels. The rate at which that happens depends upon your selected drive mode.
Per Porsches tech notes, the 992 AWD logic implements a drift mode yes, you can hang out the rear on an AWD 992. Unlike some automakers, Porsche doesnt include a dedicated drift mode option in the PCM. It just works.
The 992s AWD is supposed to be all new over the 991. It certainly feels different when pushed, but I attribute a component of that to software.
If youre on the fence with going AWD, a few thoughts
Now, I am fully aware that some people just prefer RWD and thats totally fine. As with manual over PDK, its an experience preference.
There will be someone that chimes in about steering feel thanks to Henry Catchpoles throwaway comment in the Carfection 992 launch video. To be clear, all 992s have excellent steering feel.
Misconceptions around how the AWD system works has led to heated arguments in the past on the RennList. Traditionalists dismiss the cars despite the reality that Porsche has been making AWD 911s for coming up to 35 years. AWD has been an option for 911s for most of the models history.
If you think that you might be able to utilize the benefits of the 992 AWD system, go for it. Its a great system. If youre building to a budget, you can also easily skip it and still have a great experience.
Per Porsches tech notes, the 992 AWD logic implements a drift mode yes, you can hang out the rear on an AWD 992. Unlike some automakers, Porsche doesnt include a dedicated drift mode option in the PCM. It just works.
The 992s AWD is supposed to be all new over the 991. It certainly feels different when pushed, but I attribute a component of that to software.
If youre on the fence with going AWD, a few thoughts
- Its the only way to get a limited slip diff on the Base Carrera, when specd with PTV+. Yes, all of those RWD Base Carreras are open diff and this is why you occasionally see posts about rear brake wear thats the e diff slowing you down.
- The weight difference is approximately a full tank of gas. A RWD 992 with a full extended tank actually weighs more than an AWD 992.
- Wet mode is substantially more sophisticated on the AWD cars if you plan on driving your car in the wet.
- The system delivers benefits in all weather conditions dry, wet, snow, loose surfaces, etc. This is why the AWD cars are quicker off of the line and beastly in the corners. Its not just for people where it snows.
Now, I am fully aware that some people just prefer RWD and thats totally fine. As with manual over PDK, its an experience preference.
There will be someone that chimes in about steering feel thanks to Henry Catchpoles throwaway comment in the Carfection 992 launch video. To be clear, all 992s have excellent steering feel.
Misconceptions around how the AWD system works has led to heated arguments in the past on the RennList. Traditionalists dismiss the cars despite the reality that Porsche has been making AWD 911s for coming up to 35 years. AWD has been an option for 911s for most of the models history.
If you think that you might be able to utilize the benefits of the 992 AWD system, go for it. Its a great system. If youre building to a budget, you can also easily skip it and still have a great experience.
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Burning Brakes
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