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RAS, skip or must have?

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Old 12-20-2019, 09:39 AM
  #16  
detansinn
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As others have noted, you’ll have a tough time discerning the impact of PDCC in a 911. For a Cayenne or Macan, different story.

My SA is recommending it for the Taycan, because it does help with how really heavy vehicles carry their weight. When you’ve got a 5100lb car, you need all of the help that you can get — even with a very low CoG.
Old 12-20-2019, 09:52 AM
  #17  
HKS350
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I've owned a 991 GT3 recently with RAS and currently own a 992s without RAS.
I can't remember 1 time when I owned the GT3 and thought "Wow that RAS is awesome" Actually had one of the actuators die about 20K miles and ruined a set of tires. All warranty but......

On the other hand everytime I drive the 992s I think how much nicer the front end grip is compared to the 991. So for me I'd spend the money on PASM with PDCC to enhance the front end grip. The RAS is for the 9/10th driver at the limit.
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Old 12-20-2019, 06:37 PM
  #18  
Denny Swift
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I suggest that you test drive both back to back. I convinced myself that I would forego RAS based on what I was reading, but figured that I should test dive them. Fortunately, my dealer had a C2S with RWS and one without. I drove them back to back on the same loop. I was amazed at how much better the steering felt with the RAS. The difference was immediately noticeable. I was pissed because had I preferred the one without, I would have saved some money. I really was surprised at how much better I liked the RAS.
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Old 12-20-2019, 06:46 PM
  #19  
992Sam
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Originally Posted by Denny Swift
I suggest that you test drive both back to back. I convinced myself that I would forego RAS based on what I was reading, but figured that I should test dive them. Fortunately, my dealer had a C2S with RWS and one without. I drove them back to back on the same loop. I was amazed at how much better the steering felt with the RAS. The difference was immediately noticeable. I was pissed because had I preferred the one without, I would have saved some money. I really was surprised at how much better I liked the RAS.
the car I test drove (no RAS) vs the car I just got (mine) which has RAS handle very differently... especially at medium speeds (40-60mph) when you jerk the where back and forth you can feel the immediate direction change difference.
Old 12-20-2019, 06:54 PM
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If you plan to own/drive a 911 just as a nicer Lexus, then don't worry about RAS. But if you are a driving enthusiast of any kind, RAS is a must have. Definitely more critical (and cheaper than PDCC and PCCB). Drive two 991 or 992 back to back without and without RAS. If you can't tell there is a big difference, then go buy a Lexus.....
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Old 12-20-2019, 06:58 PM
  #21  
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Originally Posted by 992Sam
the car I test drove (no RAS) vs the car I just got (mine) which has RAS handle very differently... especially at medium speeds (40-60mph) when you jerk the where back and forth you can feel the immediate direction change difference.
Yes, that was exactly my impression. The RAS makes it feel more like a mid engine car to me.
Old 12-20-2019, 07:11 PM
  #22  
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Others have noted how the car feels smaller with sharp turns with the RAS, almost more like a pre-991 911. I would agree with that sentiment. Must be experienced to understand. My GTS feels totally sloppy in comparison and trust me when I say that the turning capability of the GTS is pretty outstanding.
Old 12-20-2019, 10:45 PM
  #23  
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I finally have a 911 with RAS. Very glad that I optioned it! Enough said.
Old 12-20-2019, 11:56 PM
  #24  
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There are several traffic roundabouts in my neighborhood. I opted for RAS to navigate them with precision. I opted for PDCC to eliminate the body roll while going around them.
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Old 12-21-2019, 12:11 AM
  #25  
ipse dixit
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Just get it.

It's only 2k. Something like less than 2% of the total price of the car.
Old 12-21-2019, 12:23 AM
  #26  
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Originally Posted by HKS350
1 time when I owned the GT3 and thought "Wow that RAS is awesome" Actually had one of the actuators die about 20K miles and ruined a set of tires. All warranty.
I wonder how often an actuator will go out. I’m sure it’s probably not an issue overall.. but it is just one more component that could go wrong.
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Old 12-21-2019, 02:42 AM
  #27  
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Originally Posted by jkautz
I wonder how often an actuator will go out. I’m sure it’s probably not an issue overall.. but it is just one more component that could go wrong.
True - but what are the chances, really, of the RAS failing and needing replacement? It's like anything else in life; few guarantees (other than death and taxes) but if I had to put my money on anyone's engineering, it would be the German's and more specifically, the Germans at Porsche.

PDCC and RAS serve different purposes. My GTS has PDCC and my Touring RAS. I, for one, notice the PDCC in the GTS, even at speeds less than, say, 100 mph. It keeps the car flat at high speeds. No appreciable body roll. The GT3 does not have PDCC, nor does it need it.

If I had to choose one or the other, I would opt for RAS. In fact, if I were spec'ing a 992, knowing what I know from having both technologies in separate cars, I would spec the RAS and forego the PDCC. Both are great technologies but the RAS is more of a game-changer than the PDCC, in my opinion. I am glad that I spec'd my GTS with PDCC and I fancy I would have spec'd it with RAS, if it had been an option at the time. I'd much rather spend the money on RAS over, say, deviated stitching, if I had to choose where to put my money. I would always option performance upgrades over cosmetic ones. Or, in my case, say "the hell with it" and spec it loaded, with every option I wanted, as I did with my Touring, not including the Musicar Stage 3+ stereo upgrade and the fully integrated ALP/Escort laser jammer/radar detector. Off topic, but if you are interested, DM me and I can give you details...
Old 12-21-2019, 12:29 PM
  #28  
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Originally Posted by Porsche911GTS'16
True - but what are the chances, really, of the RAS failing and needing replacement? It's like anything else in life; few guarantees (other than death and taxes) but if I had to put my money on anyone's engineering, it would be the German's and more specifically, the Germans at Porsche.

PDCC and RAS serve different purposes. My GTS has PDCC and my Touring RAS. I, for one, notice the PDCC in the GTS, even at speeds less than, say, 100 mph. It keeps the car flat at high speeds. No appreciable body roll. The GT3 does not have PDCC, nor does it need it.

If I had to choose one or the other, I would opt for RAS. In fact, if I were spec'ing a 992, knowing what I know from having both technologies in separate cars, I would spec the RAS and forego the PDCC. Both are great technologies but the RAS is more of a game-changer than the PDCC, in my opinion. I am glad that I spec'd my GTS with PDCC and I fancy I would have spec'd it with RAS, if it had been an option at the time. I'd much rather spend the money on RAS over, say, deviated stitching, if I had to choose where to put my money. I would always option performance upgrades over cosmetic ones. Or, in my case, say "the hell with it" and spec it loaded, with every option I wanted, as I did with my Touring, not including the Musicar Stage 3+ stereo upgrade and the fully integrated ALP/Escort laser jammer/radar detector. Off topic, but if you are interested, DM me and I can give you details...
Well you definitely have more seat time to compare with and without. I however, did not feel any appreciable difference when testing PDCC and non-PDCC back to back. Maybe in a larger SUV type vehicle I would have felt the difference. But the 911 is such a small sports car. It may be larger than previous generations, but it still feels really small to me.

As for RAS, I agree. The difference is definitely one that can be felt and appreciated for what it delivers. Not an option I would get for mine, (reasons already stated).. BUT if I could have RAS on my truck! Now that would be a game changer lol I’m tired of 3-point turning into every parking space I find
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Old 12-21-2019, 01:09 PM
  #29  
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As said before: PDCC is not all about countering body roll. Its main purpose in the 911 is the variable roll torque distribution which allows for high speed and cornering stability as well as countering under and oversteer. In addition, keeping the body flat allows for a higher lateral acceleration since you drive on the default camber a little longer before moving into changes over kinematics.
There is a reason why every official laptime is driven in a car with sport chassis, PDCC and RAS.

To the topic at hand: RAS is a must. PDCC can be skipped. If you are looking for the last 10ths on the track and want the best ride with the sport chassis it's definitely a must have.
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Old 12-21-2019, 01:32 PM
  #30  
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Originally Posted by Osv
As said before: PDCC is not all about countering body roll. Its main purpose in the 911 is the variable roll torque distribution which allows for high speed and cornering stability as well as countering under and oversteer. In addition, keeping the body flat allows for a higher lateral acceleration since you drive on the default camber a little longer before moving into changes over kinematics.
There is a reason why every official laptime is driven in a car with sport chassis, PDCC and RAS.

To the topic at hand: RAS is a must. PDCC can be skipped. If you are looking for the last 10ths on the track and want the best ride with the sport chassis it's definitely a must have.
I agree PDCC has a purpose.. however, opting for it requires the addition of RAS, which makes no sense. RAS to record any lap time is a cheat IMO. And in the opinion of every race circuit on the planet. It’s using parlor tricks to cut time off a lap, and would not be considered a true race car. Porsche 911 legacy IS their racing history. That being said, this is JUST my opinion when talking about track time and lap times. RAS for the GT car is a fine choice. Track car? It’s just a gimmick


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