The 991S on track
#1
Thread Starter
In Your Face, Ace
Rennlist Member
Rennlist Member
Joined: Jun 2001
Posts: 11,120
Likes: 7
From: New Orleans
The 991S on track
The 991 is nothing short of incredible. Having the opportunity to drive it on the track and then jump right into a 997S on the same track provided a clear contrast on just how far this cars performance has leaped forward.
The chassis is so well behaved and much more neutral thanks to PDCC. This with the wheelbase change makes it feel nearly mid-engine. The contrast in rear tire wear is unbelievable due to PDCC also. The rear tire wears completely uniform across the entire tread pattern rather than the 30% difference you see on the 997. We had sets of tires to compare that were being removed from the track vehicles.
The elctromagnetic steering is also a vast improvement because it only removes the harsh feedback you feel under super hard braking on poor surface. Much more controlled feedback and balance in the steering wheel under hard driving and breaking on poor surfaces. Also better parking lot speed feel to the steering. We were not allowed to disable PSM, however I was able to rotate the car through a slide (drift) a couple of times and could feel the correction process enable itself. I believe with the PSM off that you'd be able to throw the car however aggressively you dare and it would drift. It would be up to the driver at that point. The 991 is not a robot.
PDK has been massaged with better software programming, instant roll off brake, faster smoother shifts under normal driving and much harder aggressive upshifts in Sport Plus and Sport. A vast improvement that I look forward to seeing in the Panamera.
In addition to the track driving and auto cross, we took a run up into the mountains. I can't remember the total miles, however round trip it was about 3 hours, We obviously were on open roads and drove exactly at the posted speed limits and the average fuel economy round trip was 27MPG.
I could go on but it's time for some photos.
The chassis is so well behaved and much more neutral thanks to PDCC. This with the wheelbase change makes it feel nearly mid-engine. The contrast in rear tire wear is unbelievable due to PDCC also. The rear tire wears completely uniform across the entire tread pattern rather than the 30% difference you see on the 997. We had sets of tires to compare that were being removed from the track vehicles.
The elctromagnetic steering is also a vast improvement because it only removes the harsh feedback you feel under super hard braking on poor surface. Much more controlled feedback and balance in the steering wheel under hard driving and breaking on poor surfaces. Also better parking lot speed feel to the steering. We were not allowed to disable PSM, however I was able to rotate the car through a slide (drift) a couple of times and could feel the correction process enable itself. I believe with the PSM off that you'd be able to throw the car however aggressively you dare and it would drift. It would be up to the driver at that point. The 991 is not a robot.
PDK has been massaged with better software programming, instant roll off brake, faster smoother shifts under normal driving and much harder aggressive upshifts in Sport Plus and Sport. A vast improvement that I look forward to seeing in the Panamera.
In addition to the track driving and auto cross, we took a run up into the mountains. I can't remember the total miles, however round trip it was about 3 hours, We obviously were on open roads and drove exactly at the posted speed limits and the average fuel economy round trip was 27MPG.
I could go on but it's time for some photos.
Last edited by Abby Normal; 02-05-2012 at 12:42 AM.
#2
Any further details on the track time? Sounds like it was controlled conditions, just curious as to the durability of the car during consecutive fast laps with no "breathing" through pit lane or other similar ways to cool the car down between laps...
#3
Thread Starter
In Your Face, Ace
Rennlist Member
Rennlist Member
Joined: Jun 2001
Posts: 11,120
Likes: 7
From: New Orleans
Think of this, $250k in Pirelli tires have been shredded on these cars!
The new front brake calipers and discs on the S resist fading much better than those on the 997 and have near PCCB stopping power also.
Durability was not an issue for the 991 and they were all showing around 5000 miles.
#7
Allow me...
And... is that good? A 911 should never behave like a mid-engine.
Are you guys frustrated sports cars drivers? After all most of you raved about a controlled stiff ride, firm shifts and direct steering not so long ago... Geez... we now have active/filtering steering to 'calm down the driving experience', skyhook suspension with PDCC for a true Lexus serene/carpet ride. I guess the sports car is dead, because their new buyers have gone soft.
And... is that good? A 911 should never behave like a mid-engine.
Are you guys frustrated sports cars drivers? After all most of you raved about a controlled stiff ride, firm shifts and direct steering not so long ago... Geez... we now have active/filtering steering to 'calm down the driving experience', skyhook suspension with PDCC for a true Lexus serene/carpet ride. I guess the sports car is dead, because their new buyers have gone soft.
Trending Topics
#8
FYI... the 997 S steel brakes offer the same (measured) braking performance including fade, as the PCCB brakes. The PCCB advantage is lower unsprung weight.
#9
+1--Gotta agree with you here...
Allow me...
And... is that good? A 911 should never behave like a mid-engine.
Are you guys frustrated sports cars drivers? After all most of you raved about a controlled stiff ride, firm shifts and direct steering not so long ago... Geez... we now have active/filtering steering to 'calm down the driving experience', skyhook suspension with PDCC for a true Lexus serene/carpet ride. I guess the sports car is dead, because their new buyers have gone soft.
And... is that good? A 911 should never behave like a mid-engine.
Are you guys frustrated sports cars drivers? After all most of you raved about a controlled stiff ride, firm shifts and direct steering not so long ago... Geez... we now have active/filtering steering to 'calm down the driving experience', skyhook suspension with PDCC for a true Lexus serene/carpet ride. I guess the sports car is dead, because their new buyers have gone soft.
Certainly the car is improved, especially in terms of decreased noise and increased luxury, but performance will be improved incrementally. It's not as if the 997s were under-performing. I mean, let's be serious--the 991's improved Nordschleiffe time is a whopping 3% better than the 997. Yes, it's better for sure, but that difference falls within the realm of driver error/skill.
#12
Thread Starter
In Your Face, Ace
Rennlist Member
Rennlist Member
Joined: Jun 2001
Posts: 11,120
Likes: 7
From: New Orleans
Allow me...
And... is that good? A 911 should never behave like a mid-engine.
Are you guys frustrated sports cars drivers? After all most of you raved about a controlled stiff ride, firm shifts and direct steering not so long ago... Geez... we now have active/filtering steering to 'calm down the driving experience', skyhook suspension with PDCC for a true Lexus serene/carpet ride. I guess the sports car is dead, because their new buyers have gone soft.
And... is that good? A 911 should never behave like a mid-engine.
Are you guys frustrated sports cars drivers? After all most of you raved about a controlled stiff ride, firm shifts and direct steering not so long ago... Geez... we now have active/filtering steering to 'calm down the driving experience', skyhook suspension with PDCC for a true Lexus serene/carpet ride. I guess the sports car is dead, because their new buyers have gone soft.
Yes it is good. The rotating mass is more balanced to the center and the result is reduced torque induced understeer allowing you to accelerate harder than a 997 through an apex among a whole list of other benefits. The videos of a 997 vs 991 through a slalom is proof positive as well as the drive.
And honestly your post sounds like someone who is frustrated. The 991 still does have a controlled stiff ride, firm shifts (only had PDK) and the new steering still feels live but yet improved under bad surface hard braking. Fading with the standard S brakes has been reduced. And while I fully understand the braking distances compare with the PCCB, the new S brakes have a lighter rotating mass than 997, are bigger and have a better caliper. This results in way less fading under track like conditions.
The Porsche Sports Car is far from dead and there will all versions to include the GT3, RS series, etc.. so if you want raw, it will still be available and better than ever.
It's absolutely silly for you to compare this car to anything Lexus has ever made.
Keep in mind these were S models that we drove and were made to be everyday cars that can still show up at a track and knock the socks off of most cars on the planet. So having swift steering for parking lots is an advantage.
#13
Thread Starter
In Your Face, Ace
Rennlist Member
Rennlist Member
Joined: Jun 2001
Posts: 11,120
Likes: 7
From: New Orleans
#14
Thread Starter
In Your Face, Ace
Rennlist Member
Rennlist Member
Joined: Jun 2001
Posts: 11,120
Likes: 7
From: New Orleans
All were PDK. The improvements to the clutches, software and cooling are really nice improvements. The PDK now has instant roll off brake and that alone is a big improvement. Overall, it's a nice evolution and just what the PDK needed.
#15
Thread Starter
In Your Face, Ace
Rennlist Member
Rennlist Member
Joined: Jun 2001
Posts: 11,120
Likes: 7
From: New Orleans
That is the "near stopping power" I was referring to.