C4s AWD Weirdness.. newb question
#1
C4s AWD Weirdness.. newb question
Guys,
i just picked up a 14 C4S as my DD. Having never driven an AWD 911 I’m unfamiliar with their quirks. During slow tight turns it feels like my GMC2500 in 4WD ! Is that normal in these cars? Coming out of an Audi S6 this is a little uncivilized lol.
Anyone else snag their right foot toes on the overly low heater vent about the gas pedal?
Thanks in advance.
Chuck
Da fleet:
13 Audi S6. (For sale)
14 991 C4S
04 996 GT3 (I’m not worthy)
04 964 RS America
18 Audi SQ5
04 GMC2500 Moses BC people just get outta the way.
i just picked up a 14 C4S as my DD. Having never driven an AWD 911 I’m unfamiliar with their quirks. During slow tight turns it feels like my GMC2500 in 4WD ! Is that normal in these cars? Coming out of an Audi S6 this is a little uncivilized lol.
Anyone else snag their right foot toes on the overly low heater vent about the gas pedal?
Thanks in advance.
Chuck
Da fleet:
13 Audi S6. (For sale)
14 991 C4S
04 996 GT3 (I’m not worthy)
04 964 RS America
18 Audi SQ5
04 GMC2500 Moses BC people just get outta the way.
#2
Rennlist Member
Where are you located?
Was it cold out?
Need to better describe the feeling.
There are no quirks with the Porsche AWD system and I came from a number of years of Audi ownership.
Was it cold out?
Need to better describe the feeling.
There are no quirks with the Porsche AWD system and I came from a number of years of Audi ownership.
#3
Not sure about .1 cars but in .2 it’s not like that...can’t tell its awd unless you floor it 50% is sent to front then if it’s slippery car may dart left or right because of front slippage and lack of smart diff up front. If you’re not on the throttle it acts just like rwd. When its cold out the tires skip on hard turns with all wide tire cars due to steering geometry.
#4
Three Wheelin'
Don't worry about it my 997.1 C4s does it sometimes also .....Most awd cars will do this to some extent some more than others depending on the Temperature & surface underneath the tires such a dirt debris , wet etc. Totally Normal ...
#5
Instructor
If you're speaking of a "skipping" feeling or noise it is normal, and is the same with rear-wheel drive units. Give it a whirl when the tires are nice and warm and it shouldn't do it, or do it less.
#6
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"Anyone else snag their right foot toes on the overly low heater vent about the gas pedal?"
No, how big are your feet?
No, how big are your feet?
#7
Its the Ackermann effect and is totally normal. Worse when cold... feels like the front diff is locked, but it isnt. Imperfect steering geometry.
I get my fat foot stuck behind the brake pedal sometimes. Not under the heating vent.
I get my fat foot stuck behind the brake pedal sometimes. Not under the heating vent.
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#8
Burning Brakes
Most likely the Ack or Acorn effect that others have alluded to above, but just curious : when you say "slow tight turns" are you referring to maneuvering like in parking lots, driveways, etc.? Or at normal driving speeds? If the former, you have the answer in that the front tires will stutter across the surface due to the geometry forces involved and tire compounds, temperatures, etc. But if you are describing a wiggle in the handling when getting on the throttle after a tight turn that you drove-into, then it might be the drive train characteristics. I've experienced same from my (previous) C4S and figured it was likely due to the Front / Rear power bias changing as acceleration (and possibly loss of rear grip) was detected, with stability control and all that nanny-stuff kicking-in. The C4/4S cars only put power up to the front drive-train in certain situations, and is not full-time AWD at all. I had an experience right after getting my 4S years ago where I turned tight right-hand onto an incline and left-hand curving road with lots of loose gravel near the center. As I turned and accelerated I hit the loose gravel, the rear just for a moment started to slip-out before the power shot to the front and yanked me straight.... Was noticeable but I felt the car was rock-solid whereas in an older 911 I would probably have just found my *** facing the wrong-way..... LOL
#10
This pretty much happens every time I back out from the garage and then turn to go out the driveway, even when it's warm.
Just a trait of the car, mine is a 991.2 C4S.
Just a trait of the car, mine is a 991.2 C4S.
#11
same here. goes away with winter tires
#12
Rennlist Member
#15
Rennlist Member
So what was the quirkiness?
Was it the tire skipping sensation?
Was it the tire skipping sensation?