Is the Cayenne always 4wd or does it have to be switched fr 2wd to 4wd? - Rennlist Discussion Forums

Log In 


Is the Cayenne always 4wd or does it have to be switched fr 2wd to 4wd?

Reply
 
Thread Tools Search this Thread
Old 01-11-2011, 10:13 PM   #1
Mister Quickie
User
Thread Starter
 
Mister Quickie's Avatar
 
Join Date: Nov 2010
Posts: 606
Default Is the Cayenne always 4wd or does it have to be switched fr 2wd to 4wd?

snow/sleet tomorrow and the x is letting me use her cayenne v6. the other time i drove it there were these other two drive modes (cannot shift to on the fly, must be in neutral to shift) which were real slow, perhaps designed to get out of tough areas.
the question is whether the cayenne, in its' normal driving mode, is a 4wd or is a 2wd and in order to utilize 4wd has to switch to one of the other modes?

TIA
Mister Quickie is offline   Reply With Quote
Old 01-11-2011, 10:34 PM   #2
mudman2
Moderator !x2
Rennlist Member

 
mudman2's Avatar
 
Join Date: Jun 2003
Location: Southeastern PA
Posts: 5,879
Default

always
mudman2 is offline   Reply With Quote
Old 01-11-2011, 10:40 PM   #3
Dennis C
Rocky Mountain High
Rennlist Member
 
Dennis C's Avatar
 
Join Date: Aug 2007
Location: Evergreen, Colorado
Posts: 11,426
Default

It's actually full-time AWD, which is the best application for on road driving. My old Ford Bronco was 4WD!
Dennis C is offline   Reply With Quote
Old 01-11-2011, 11:21 PM   #4
JFScheck
Addict
Rennlist Member
 
JFScheck's Avatar
 
Join Date: Jan 2004
Location: Bethesda, Maryland
Posts: 2,850
Default

Sometimes refereed to "AllWheelDrive" vice on something such as a F-350 which is "4WheelDrive" where you have lockers on the wheels - either manual or automatic from inside the cabin....
JFScheck is offline   Reply With Quote
Old 01-12-2011, 01:28 AM   #5
medtech
Super User
 
medtech's Avatar
 
Join Date: May 2008
Location: Cali
Posts: 2,631
Default

Porsche AWD generally sends about 5% to the fronts under normal driving and will automatically adjust as needed, sending up to 40% to the fronts. (I think those #s are correct for the Cayenne, or I might be getting it confused with the 4S).
medtech is offline   Reply With Quote
Old 01-12-2011, 12:43 PM   #6
993BillW
Super User
 
993BillW's Avatar
 
Join Date: Jan 2004
Location: NE Florida
Posts: 10,244
Default

Curious, does PSM Off change any of this?
993BillW is offline   Reply With Quote
Old 01-12-2011, 01:02 PM   #7
mudman2
Moderator !x2
Rennlist Member

 
mudman2's Avatar
 
Join Date: Jun 2003
Location: Southeastern PA
Posts: 5,879
Default

PSM is "Please Save Me " and will come on by itself if your trying to do something outside the safe operating envelope. The only time things change is when you start locking things up but thats more 4 wheel drive and not less
mudman2 is offline   Reply With Quote
Old 01-12-2011, 01:29 PM   #8
993BillW
Super User
 
993BillW's Avatar
 
Join Date: Jan 2004
Location: NE Florida
Posts: 10,244
Default

Quote:
Originally Posted by mudman2 View Post
PSM is "Please Save Me " and will come on by itself if your trying to do something outside the safe operating envelope. The only time things change is when you start locking things up but thats more 4 wheel drive and not less
I meant does turning PSM off change the front to rear bias?

I've only used low range (a transfer case function) a couple of times, once was getting a neighbor's truck un-stuck.
993BillW is offline   Reply With Quote
Old 01-12-2011, 02:00 PM   #9
mudman2
Moderator !x2
Rennlist Member

 
mudman2's Avatar
 
Join Date: Jun 2003
Location: Southeastern PA
Posts: 5,879
Default

No the system operates the same with PSM is on or off
mudman2 is offline   Reply With Quote
Old 01-12-2011, 03:50 PM   #10
mmmbeer
User
 
mmmbeer's Avatar
 
Join Date: Dec 2001
Location: Trondheim, Norway
Posts: 394
Default

Quote:
Originally Posted by medtech View Post
Porsche AWD generally sends about 5% to the fronts under normal driving and will automatically adjust as needed, sending up to 40% to the fronts. (I think those #s are correct for the Cayenne, or I might be getting it confused with the 4S).
There are two different systems on the 911 and the Cayenne. The one you are refering to is on the 911.

The system in the 911 is more aimed towards stability for sporty driving on wet surfaces than offroad use. While the Cayenne have a proper offroad system. The standard ratio is 38/62 (ref MY 06 manual).

If you push the handle on the Cayenne one more time after selecting low range you will lock the center differential for a fixed 50/50 front/rear ratio.

Last edited by mmmbeer; 01-12-2011 at 04:05 PM. Reason: grammar etc.
mmmbeer is offline   Reply With Quote
Old 01-12-2011, 05:08 PM   #11
yeldogt
Addict
Rennlist Member
 
Join Date: Aug 2003
Location: Philadelphia
Posts: 460
Default

I thought my 996tt had 35% going to the front wheels all the time? The car is unbelievable in the rain.

Some of the Cayenne's have an additional lock - mine is just the standard two step and I almost never use it. The reduction is a bit high for snow.
yeldogt is offline   Reply With Quote
Old 01-12-2011, 05:43 PM   #12
rome
Addict
Rennlist Member
 
rome's Avatar
 
Join Date: Aug 2005
Location: North Shore
Posts: 3,974
Default

Quote:
Originally Posted by mmmbeer View Post
There are two different systems on the 911 and the Cayenne. The one you are refering to is on the 911.

The system in the 911 is more aimed towards stability for sporty driving on wet surfaces than offroad use. While the Cayenne have a proper offroad system. The standard ratio is 38/62 (ref MY 06 manual).

If you push the handle on the Cayenne one more time after selecting low range you will lock the center differential for a fixed 50/50 front/rear ratio.
I thin the standard ratio for the Cayenne is a little different for MY '11 (more along the lines of the Carerra), with power going to the FWD, "as needed." It is discussed here: http://press.porsche.com/vehicles/11...eup_update.pdf
rome is offline   Reply With Quote
Old 01-13-2011, 11:48 PM   #13
medtech
Super User
 
medtech's Avatar
 
Join Date: May 2008
Location: Cali
Posts: 2,631
Default

Quote:
Originally Posted by mmmbeer View Post
There are two different systems on the 911 and the Cayenne. The one you are refering to is on the 911.

The system in the 911 is more aimed towards stability for sporty driving on wet surfaces than offroad use. While the Cayenne have a proper offroad system. The standard ratio is 38/62 (ref MY 06 manual).

If you push the handle on the Cayenne one more time after selecting low range you will lock the center differential for a fixed 50/50 front/rear ratio.
Thanks Beer!

I hope I can remember how to lock the diff when I actually need it.
medtech is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
4S only? yeldogt 996 Forum 12 01-17-2015 03:56 PM
turning off 4wd on a c4s Tbred911 997 Forum 19 04-29-2014 12:37 PM
04 Cayenne S stuck in 4wd PLEASE HELP! jplumlee Porsche Cayenne Forum 3 12-07-2013 09:59 PM
Cayenne: RWD -2WD Conversion/Front Transaxel Disconnect CayenneS2006 Porsche Cayenne Forum 4 05-24-2012 03:31 PM
Cup Car Dyno Testing? gmgracing Porsche Cup Cars 4 03-24-2009 08:25 AM


Tags
2011, awd, cayenne, center, differential, drive, driving, full, locking, mode, porsche, snow, time, wheel, work

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -3. The time now is 05:50 AM.


Copyright ę 1998 - 2015 Rennlist.com