997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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GT2 versus modified TT?

Old Jan 26, 2009 | 03:37 PM
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I don't believe in the 'magic' geometry of the 997 GT2 - I'm sorry, but I don't go along with Pete Stout (Excellence Mag) to pray to that particular alter. Complex race engineering is much more than that.
 
Old Jan 26, 2009 | 03:40 PM
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Why waste time modifying the tt to keep up or beat the GT2? If you're really into making whatever you get faster, then why not go with the better platform; the GT2?
And what about the drivetrain? Does anyone worry about upgrading their tt and sending 700hp through that all-wheel-drive system? How much hp can it even handle?
 
Old Jan 26, 2009 | 03:49 PM
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Originally Posted by mperfect
Why waste time modifying the tt to keep up or beat the GT2? If you're really into making whatever you get faster, then why not go with the better platform; the GT2?
And what about the drivetrain? Does anyone worry about upgrading their tt and sending 700hp through that all-wheel-drive system? How much hp can it even handle?
Well, considering number of the 700+ HP 996TTs out there, I'd say the car will do just fine.
 
Old Jan 26, 2009 | 03:55 PM
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Originally Posted by bbywu
Well, considering number of the 700+ HP 996TTs out there, I'd say the car will do just fine.

Do they keep their all-wheel-drive? And if so, how long does it last?
 
Old Jan 26, 2009 | 04:50 PM
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Love them both.. but if I had the cash I would go with the GT2!
 
Old Jan 27, 2009 | 02:13 AM
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Originally Posted by JZRS4
I love the responses. Of course you can make the Turbo as fast as a GT2, but it will never be a GT2. Toss a few bucks at the GT2 and where is the Turbo? Probably in your rear view mirror. These are two different beasts, drive em both and you will see. Personally, I need the back seat, awd and I took the savings from the GT2 price tag and I will buy another car. With that being said, waiting another 7 years for the next Gt2 is not something I plan on doing.

It is cheap to add power, try reducing weight on your Turbo and you'll find out why the Gt2 is so fantastic.
The first 200lbs or so can be easily had for about 10-12k (non Porsche CF seats, exhaust, wheels, rear seat removal, battery, floor mats/tools etc) which isnt bad. Once you start to getting the body panels and such, you might as well buy the GT2), hopefully The PCCB was included as an option and the MPSC will save you about 30 lbs too.

Let's also not forget that Porsche claimed 3175 for the 997 GT3 and I have yet to see one of those weigh less than 3220 lbs or so. The 997 TT's are slightly over 3500 so you'd be giving up about 100 lbs still when that is done, but you'd be equal or greater in power and after getting a good suspension you'd have more adjstability.

I havent driven a suspension modded 997 TT yet, but judging by how the 996 platform responded to those changes, the 997 TT could very well be a beast in that aspect too.

Originally Posted by mperfect
Why waste time modifying the tt to keep up or beat the GT2? If you're really into making whatever you get faster, then why not go with the better platform; the GT2?
And what about the drivetrain? Does anyone worry about upgrading their tt and sending 700hp through that all-wheel-drive system? How much hp can it even handle?
Because the better platform cost 50-60k more dollars and as you increase in price, the number of people that can afford to track a 200k car goes down. 700 hp for anyone other than pro will make you slower not faster, 600 hp tops is all that is needed. Besides, after you do a turbo swap, fuel system and all that crap, you still have to do suspension or you'll still get waisted by the GT2. And now you've spent a ton.

700 (crank) hp is easily doable though with the AWD system.

The GT2 is the better platform no doubt, but the premium you pay for it means you can suffice with improvements on a pretty much identical chassis and supplant the areas you lack with a few mods for much less money. Especially considering you can get a TT at sub 100k these days. For 110-115k you could spank quite a few GT2's in a TT.
 
Old Jan 27, 2009 | 06:27 AM
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The 997 GT2 is rear wheel drive, I'd be scared putting 700hp crank on it. the Turbo is 4wd. Like HC said the 700 will make you slower not faster, however you have more chances of going faster if you have more grip. The Turbo modded has more potential of going faster than the modded gt2 due to AWD IMO.
 
Old Jan 27, 2009 | 11:23 AM
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looks like you have another track car rather then the tt, i say i would keep the tt since your wife likes driving it. the tt is more civilized while the gt2 is more raw purely for tracking, which i dont think your wife would feel too happy driving. also gt2s are manual vs your tt tip.
 
Old Jan 27, 2009 | 02:19 PM
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Originally Posted by heavychevy
The first 200lbs or so can be easily had for about 10-12k (non Porsche CF seats, exhaust, wheels, rear seat removal, battery, floor mats/tools etc) which isnt bad. Once you start to getting the body panels and such, you might as well buy the GT2), hopefully The PCCB was included as an option and the MPSC will save you about 30 lbs too.

Let's also not forget that Porsche claimed 3175 for the 997 GT3 and I have yet to see one of those weigh less than 3220 lbs or so. The 997 TT's are slightly over 3500 so you'd be giving up about 100 lbs still when that is done, but you'd be equal or greater in power and after getting a good suspension you'd have more adjstability.

I havent driven a suspension modded 997 TT yet, but judging by how the 996 platform responded to those changes, the 997 TT could very well be a beast in that aspect too.



Because the better platform cost 50-60k more dollars and as you increase in price, the number of people that can afford to track a 200k car goes down. 700 hp for anyone other than pro will make you slower not faster, 600 hp tops is all that is needed. Besides, after you do a turbo swap, fuel system and all that crap, you still have to do suspension or you'll still get waisted by the GT2. And now you've spent a ton.

700 (crank) hp is easily doable though with the AWD system.

The GT2 is the better platform no doubt, but the premium you pay for it means you can suffice with improvements on a pretty much identical chassis and supplant the areas you lack with a few mods for much less money. Especially considering you can get a TT at sub 100k these days. For 110-115k you could spank quite a few GT2's in a TT.
OK, I'll give you the weight and lets say for argument sake you are right. But the one major advantage the Gt2 has over the Turbo is low production, combined with it being offered every 5-7 years. So if you are sick of seeing Turbos or are one of those guys that collect or love residual values then the Gt2 is probably the way to go.

This is the way I see it:

Turbo:
Pros:
2 + 2 (makes the wife and baby happy, lowers INS)
AWD ( all weather capability)
Coupe/6 spd has low production numbers
Easy to mod, easy to drive
Cons:
Terrible resale
Overweight


GT2:
Pros:
Exclusivity
Drivers Car
Light weight
HP bump from turbo

Cons:
No back seat
No AWD
The race seats suck ***** unless you are on the track
The suspension is great if your roads are buttery smooth, if not you need a kidney belt.
Not a fan of the spoiler


The point I was trying to make, is that you shouldn't buy a turbo to try and make it a GT2. It will never be one and chances are you'll be unhappy. I could have bought a new 2 in June for 192K, I ordered my Turbo the same day and I think I made the right choice for my situation.
 
Old Jan 28, 2009 | 02:01 PM
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Gerry (911TurboS2),

The 997 GT2 engine is rated at 530 bhp @ 6500 rpm, and a tire destroying 505 lb-ft of torque @ 2200 - 4500 rpm. It has a different intake manifold, bigger Variable Turbine Geometry (VTG) turbochargers, a higher red line and higher boost pressure 1.4 Bar. Having driven both cars. I must say that the car is a blast to drive. Compared with the 996 GT2, a specially adapted version of Porsche's Stability Management (PSM) is fitted. This includes Stability Control (SC) which monitors the direction, speed, yaw velocity and lateral acceleration of the car and uses the gathered information to apply selective braking in order to correct oversteer or understeer. traction control (TC) is responsible for adapting the cars power delivery to various surfaces the car may encounter, it also helps to prevent the back end from stepping out during hard acceleration. The 997 GT2 also features launch control which maximizes acceleration from a standing start, the 2008 GT2 is the first road going car Porsche has fitted this system to.

The 911 GT2 offers new achievements also in terms of emission management and control: This is the first Porsche homologated for the road to feature a rear silencer and tailpipes made of titanium as standard equipment. This expensive material reduces weight by approximately 50 per cent versus a comparable component made of stainless steel to just 9 kg.

The new 911 GT2 comes as standard with PCCB brakes featuring brake discs made of a composite carbon fibre/ceramic compound ensuring maximum stopping power maintained with an extremely high level of consistency. A further advantage is that PCCB brakes reduce the weight of the unsprung masses versus comparable grey cast-iron discs by approximately 20 kg or 44 lb.


Yet another feature fitted as standard is the electronically controlled PASM Porsche Active Suspension Management. (PASM). The GT2 comes on 19-inch light-alloy wheels running at the front on 235/35 ZR 19, at the rear on 325/30 ZR 19 sports tyres.
 
Old Jan 28, 2009 | 02:55 PM
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Gt2 all the way
 
Old Jan 28, 2009 | 04:32 PM
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<!-- google_ad_section_start -->Gt2 all the way
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+1 end of story
 
Old Jan 29, 2009 | 01:26 AM
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Originally Posted by Q8_TwinTurbo
Gerry (911TurboS2),

The 997 GT2 engine is rated at 530 bhp @ 6500 rpm, and a tire destroying 505 lb-ft of torque @ 2200 - 4500 rpm. It has a different intake manifold, bigger Variable Turbine Geometry (VTG) turbochargers, a higher red line and higher boost pressure 1.4 Bar. Having driven both cars. I must say that the car is a blast to drive. Compared with the 996 GT2, a specially adapted version of Porsche's Stability Management (PSM) is fitted. This includes Stability Control (SC) which monitors the direction, speed, yaw velocity and lateral acceleration of the car and uses the gathered information to apply selective braking in order to correct oversteer or understeer. traction control (TC) is responsible for adapting the cars power delivery to various surfaces the car may encounter, it also helps to prevent the back end from stepping out during hard acceleration. The 997 GT2 also features launch control which maximizes acceleration from a standing start, the 2008 GT2 is the first road going car Porsche has fitted this system to.

The 911 GT2 offers new achievements also in terms of emission management and control: This is the first Porsche homologated for the road to feature a rear silencer and tailpipes made of titanium as standard equipment. This expensive material reduces weight by approximately 50 per cent versus a comparable component made of stainless steel to just 9 kg.

The new 911 GT2 comes as standard with PCCB brakes featuring brake discs made of a composite carbon fibre/ceramic compound ensuring maximum stopping power maintained with an extremely high level of consistency. A further advantage is that PCCB brakes reduce the weight of the unsprung masses versus comparable grey cast-iron discs by approximately 20 kg or 44 lb.

Yet another feature fitted as standard is the electronically controlled PASM Porsche Active Suspension Management. (PASM). The GT2 comes on 19-inch light-alloy wheels running at the front on 235/35 ZR 19, at the rear on 325/30 ZR 19 sports tyres.
This is a very interesting essay . Too bad you did not write it . http://www.diseno-art.com/encycloped...1_GT2_997.html

I lean towards selecting a car based on ones primary driving needs . A 997tt is a comfortable street car and when modified it reveals a wilder side . Both are great cars . When I bought mine there wasn't a GT2 so it made my choice that much easier .
 
Old Jan 29, 2009 | 05:54 AM
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My business partner has a 997TT. There is not a single day that I regret getting a GT2 over a Turbo. Period. End of Story. His car literally feels like a Caddy or Lexus by comparison.

The Turbo is a very nice car for what it is. But if you are even thinking about tracking the car regularly, there really is no reason to pick a Turbo over a GT2. I know we all tend to defend what we own/drive, but I suspect a lot of the Turbo owners on here have never even had the opportunity to drive a 997 GT2. It is really fantastic. I really wasn't that impressed at first, until I took it through some windy roads and realized how amazing it is. Several thousand miles later, it only seems to get better and better as things start to break in and loosen up. Kind of like a top vintage (82/95/00) Chateau Margaux opens up in your glass or decanter after 30 minutes.

SRatha, the Cargraphic car was actually 680hp and the TechArt GT2 was 700hp. Both were using similar modified VTG setups. If I recall, the Cargraphic Turbo was a 3.8L conversion. The RS Tuning package on the Cargraphic car was probably a little better, but the superior handling of the GT2 is evident. 1:06 at Hockenheim is fast!!! You may think 2 seconds isn't much, but for a short course like that, it is quite a difference... and no one at the Tuner GP has even come close to that 1:06 time!
 
Old Jan 29, 2009 | 06:25 AM
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Both the TT and the GT2 are fantastics cars, the only reason I didnt get a GT2 was $$. But still I believe that the difference between a TT and a Gt2 are very small compared to the differences between a regular Carrera/S and a GT3. A TT can be turned into something very close to a GT2 for not much $$
 

Last edited by MechanicalEng; Jan 29, 2009 at 06:46 AM.

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