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Definitive 991 GT3 Thread

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Old 09-19-2012, 11:51 AM
  #16  
NJ-GT
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Originally Posted by mdrums
The 9A1 engine...997.2 2009-2012 and 991 2012- is a great engine and it's really doing well in Rolex Grand Am Series with BGB and Rum Bum racing.
Problem is 9A1 doesn't put the power down as advertised. Put your 408Hp on the dyno and find out on your own, it gets lower numbers than a 996 GT3.

The advantage of the 991S are on weight distribution, body weight, aero and drastic reduction of understeer on the slow speed stuff, essentially the 991 is the Caymanization of the 997.

On Michelin Pilot SS the 991S ran 7:40 at the Ring with a Porsche test driver. On MPSC it could drop another 3-4 secs from that time. Add the newly available Aerokit, and it would drop another 2 secs minimum. Add the newly available 430Hp powerkit, and it could drop another 2 secs easily. Essentially, a 2012 911S on MPSC and all the GoFast parts from the order catalog can touch the times of the 997.2 GT3 RS at the Ring.

I think the 991 GT3 will beat the lap times from the 4.0RS at the Ring, despite of being less powerful, HP should be in the 450Hp-470Hp range using the last 3 generations of Carrera/CarreraPowerKit/GT3 (996.2 997.1 997.2) differences.
Old 09-19-2012, 01:21 PM
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Mike in CA
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Originally Posted by KBS911
I for one don't hope the base price is $150K. I think more realisticaly, based on previous 997 prices, that base will be around $132 - $135.
+1 I think (and hope) you're right. If the delta between the 997 S/997 GT3 and a 991 S/991 GT3 remains relatively constant U.S. MSRP might actually be slightly less than $132-135K.

Last edited by Mike in CA; 09-19-2012 at 01:49 PM.
Old 09-19-2012, 01:45 PM
  #18  
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generally accepted the unveiling wont take place until the Geneva Auto Salon in March 2013
Macca,

There is a rumor going around that Manthey will be campaigning a 991 RSR in the WEC in 2013. Any thoughts?
Old 09-19-2012, 02:51 PM
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wanna911
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Originally Posted by mdrums
The 9A1 engine...997.2 2009-2012 and 991 2012- is a great engine and it's really doing well in Rolex Grand Am Series with BGB and Rum Bum racing.
Yes, but I don't think they rev to almost 9k RPM and they certainly aren't producing the same amount of hp. It needs to be pushed WAY harder to be considered a valid replacement for the Mezger.

Originally Posted by NJ-GT
Problem is 9A1 doesn't put the power down as advertised. Put your 408Hp on the dyno and find out on your own, it gets lower numbers than a 996 GT3.

The advantage of the 991S are on weight distribution, body weight, aero and drastic reduction of understeer on the slow speed stuff, essentially the 991 is the Caymanization of the 997.

On Michelin Pilot SS the 991S ran 7:40 at the Ring with a Porsche test driver. On MPSC it could drop another 3-4 secs from that time. Add the newly available Aerokit, and it would drop another 2 secs minimum. Add the newly available 430Hp powerkit, and it could drop another 2 secs easily. Essentially, a 2012 911S on MPSC and all the GoFast parts from the order catalog can touch the times of the 997.2 GT3 RS at the Ring.

I think the 991 GT3 will beat the lap times from the 4.0RS at the Ring, despite of being less powerful, HP should be in the 450Hp-470Hp range using the last 3 generations of Carrera/CarreraPowerKit/GT3 (996.2 997.1 997.2) differences.
That's sound logic. Though even still, mods never seem to add up like that. I think the MPSC are good for a least a few seconds though. But with all of those mods, it probably costs more than the msrp on the .2 RS and only ~20 hp less with aero and ligher, it's not much of a different car. So I don't know how big of a deal that is to be honest.

And I've heard through the grapevine (another forum) that some big things are to be expected from 991 in Continental series. Like really good. And I doubt they are racing the PDK so that means the 991 would just prove to be a much superior racing platform. Which would be awesome!!!!
Old 09-19-2012, 02:58 PM
  #20  
Riz
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I think $139K base for the GT3, about $160K for the RS. Ridiculous options/packages extra.
Old 09-19-2012, 03:25 PM
  #21  
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Any new thoughts on the engine? The Powerkit 991 Carrera S makes 430 hp from a 3.8l, let's call that dead even with the 997.2 GT3 (435 hp from a 3.8l). Can they get another 30-40-50 hp from lighter internals, higher redline, better exhaust, race car airbox, etc.? How will the engine be oiled? True or "integrated" dry sump? What type of flywheel is the new 7 speed manual running - will there be a lwfw for the RS (I refuse to believe there will be no 7MT offered in some iteration of the 991 GT3)?
Old 09-19-2012, 03:30 PM
  #22  
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Originally Posted by NJ-GT
Problem is 9A1 doesn't put the power down as advertised. Put your 408Hp on the dyno and find out on your own, it gets lower numbers than a 996 GT3.


. Essentially, a 2012 911S on MPSC and all the GoFast parts from the order catalog can touch the times of the 997.2 GT3 RS at the Ring.

so you're saying you add "22hp" to a 9a1 engine from the GoFast catalog and it goes from less powerful than the 996gt3 to almost as fast as a 3.8RS??
Old 09-19-2012, 03:34 PM
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GT3: 6MT transmission from current turbo with steel synchros, 460hp, pdk paddle option.
RS: 485hp, "lighter weight options savings of 25kg" (carbon fenders, hood, etc as cost options)
Old 09-19-2012, 04:09 PM
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Originally Posted by C.J. Ichiban
so you're saying you add "22hp" to a 9a1 engine from the GoFast catalog and it goes from less powerful than the 996gt3 to almost as fast as a 3.8RS??
Correct. The big improvements in the 991 are not in the engine or transmission, it is on the chassis and suspension. The 991S beats the 996GT3 and 997.2 Carrera S at the Nurburgring by 10-14 secs, a major spank, despite of the three cars being on similar power levels.

put the 991S on stickier tires (MPSC), the powerkit and the new aerokit (which is similar to the spy pics on the 991GT3), it will go plenty faster.
Old 09-19-2012, 04:11 PM
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From last week during Rene Rast SuperCup win by 1 season point:

09/07/2012.- Stuttgart. At the season finale of the Porsche Mobil 1 Supercup on 9 September in Monza, the world’s fastest international one-make race series celebrates a new champion and also bids farewell to a well-proven race car. The Porsche 911 GT3 Cup based on the 997 model will be replaced next season with the new Cup vehicle based on the 991. In 2013, the new 911 GT3 Cup will run exclusively in the Porsche Mobil 1 Supercup. In all other brand trophy series, the teams will continue to field the current race car.
Old 09-19-2012, 04:32 PM
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Can't wait to see that! Where can the races be streamed? Hate waiting until the end of the year speed commercials for Supercup.

Will be interesting to keep up with the results and see how much faster it is than the 997 Cups.
Old 09-19-2012, 05:07 PM
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The 991 GT3 is obviously a widebody based on the photos which it shares with the C4. If you look at the spy photos for the 991 turbo, the rear quarters are more pronounced than the widebody on the GT3. I think the bodywork from the turbo will be on the GT3 RS to differentiate the car from the GT3, including a larger rear wing.

As for power, I'll go with 450 hp with PDK and manual as a no cost option. If the PDK is standard, then I'll guess the base price is around $130K. From the 996 GT3 to 997 GT3, the price only increased $7K. I think the 991 GT3 will be the biggest advancement of all the GT variants compared to each predecessor so the price increase will be the highest % increase, but not $150K.
Old 09-19-2012, 05:24 PM
  #28  
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In Porsche tradition, it usually will market an innocently-just-a-little-more-expensive base price than the previous model, but have a criminally-super-expensive-and-long option list to hit our wallet.

I anticipate that new 991 GT3 base price might not be too much more than the 997.2 GT3, but will have a whole new list of drooling options that makes the out-the-door price much higher than before.
Old 09-19-2012, 05:28 PM
  #29  
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And this time you have to tick all the "performance options" to make it faster, unless the GT3RS comes with the smart suspension and torque vectoring, etc standard...
Old 09-19-2012, 06:38 PM
  #30  
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I think the key determiners over a price increase will be currency (things have changed rapidly over the last 6 months and will likely continue to do so in the next 12 - heck we may not even have a EURO by then!) and if the PDK is mandatory and the only transmission option then there is a further obvious increase in the price. I expect that most technology will come standard with the GT3 with dynamic engine mounts and front nose lift systems being an option for the GT3. In the GT3RS the dynamic engine mounts and Torque vectoring will be standard fitment I would imagine....


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