The 0-60 time for a 997 Turbo S with PDK is listed at around 2.6 - 2.7 seconds in virtually every car magazine. It wasn't that long ago that anything less than 5 seconds was considered good, so 2.6 seconds is incredible. My question is how does Porsche attain that type of performance? I know that the Turbo has 530 HP but the ZR1 has almost 640 HP, and yet it launches to 60 almost a second slower than a Turbo. My understanding is AWD is not a factor in straight line performance, so is this all a factor of having a lot of weight over the rear wheels and PDK?

 

I have a Viper and ZR1.I also have a 2011 911 Turbo S.The Turbo S in much faster than the Viper and ZR1 do to the AWD and PDK.The Turbo S launches very hard with hardly no wheel spin in first gear and then in about 10 feet it nails second gear very hard with no wheel spin at all and then pulls very hard thru the quarter mile.My car (T/S) runs 11.03 w/o launch control and 10.70s launching it.
Bottom in is the Turbo S puts the power down very well.Only a Bugetti is quicker,2013 Nissan GTR is close,but the Turbo S will win by 2 cars.I know,done it.


Joe Florida...

 

The Magz. times are true......
The Turbo S is be best / fastest car I have ever owned... (:

 

PDK and its launch feature helps.

The few times I have aggressively launched my manual 996 Turbo from a dead stop it launches very respectably for it will do 0 to 60mph -- though probably not with me as a driver -- in around 4 seconds, which ain't too shabby at all.

I might add I think AWD helps cause I have felt the rear wheels break loose.

Factor in the PDK...

On that note I watched a Porsche tech -- at the request of the car's owner and with the owner sitting in the passenger's seat -- launch a non-Turbo 997 with PDK using the PDK launch feature and I was amazed at how quick and with very little drama -- read little wheel spin -- the car left the "starting line".

Impressive as all get out. I can't imagine what a 997 Turbo S would launch like but a 0 to 60mph time in under 3 seconds...I'm wearing a neck brace if I ever get a test ride.

Sincerely,

Macster.

 

Come to West Palm Beach Florida,bring your neck brace and I will give ride in a Turbo S.Launching it. (:

 

Thanks guys. I envy you guys with Turbos; even the slow non S models.

 

On 997 and up the AWD is the key. It can send all that HP to the front or the rear. On the 996 version it could not send 100% to the front. So, the 997tt and 997tts can really hook up if the tires and the pavement are there.

 

That's what I thought, but I was told that it was not the case. I'm being told that the AWD default is 100% power to the rear wheels. If tire slippage is detected, the first option is to reduce power to the rear wheels. Power will be redistributed from the rear to the front if and only if reducing power does not cause the tires from slipping, which is unlikely in straight line acceleration. Of course the computer makes all of these measurements and corrections in hundreds of a second, so no tire slippage is detected by the human eye. Since I have never read any technical analysis of the operation of Porsche's AWD system, I have no idea if the theory above is correct.

 

It's not always about just hp. Its hp to weight ratio...and torque! And traction, too. By the time you wonder what your 0-60 time might be you're going over 100...so be careful if you get behind the wheel of one of these...you run out of road fast!

 

My experience is with the 996 Turbo and its AWD system and the limits are 5% to 40% of the engine's torque can be directed to the front axle, courtesy of the viscous fluid coupling between the transmission and front axle.

In the 997 Turbo the coupling a multi-plate wet clutch with its engagement controlled by a computer. Faster and more precise control over when and how much torque is directed to the front axle is a plus. Even so, I do not believe that 100% torque could be directed to the front axle.

On a related note, I had a chance to experiment a bit with my Turbo in the snow -- on the highway and in a few parking lots with residual snow/ice present -- and I could break loose all 4 (summer) tires.

With PDK and its launch feature there is the benefit that torque can be doled out at just the right rate so slippage is limited and obviously enough to avoid triggering any action by any other controller/safety system to diminish the acceleration.

Sincerely,

Macster.

 

Traction and PDK launch control is the main factory for the Turbo S to get that 0-60. If you have the same car with a 6 speed manual and 2wd it will have its *** handed to him every time.

That is why the Turbo S is much better for the drag strip and stop light races over a GT2/GT2RS ect. Now, for longer races (1 mile), the extra power of the GT2, ect will be a benefit.

Look at the drag strip. for the best ET, the 1st 60ft make all the difference. Power without traction is a waste!

 

I turn the PSM off at the drag strip.That way it will Not pull power at all,just point it straight and hold on.Even with the PSM turned off,it will work if you hit the brakes hard enough to activate ABS.The T/S launches very straight,but violent..

 

Does anyone know what the default power distribution is for a 997 Turbo rear to front: 100/0, 80/20? My recollection is that for a 996 AWD, it's 80/20, and a maximum of 40% can be transferred to the front. I'm being told that it's 100/0 for a 997 AWD, and that 100% can be transferred to the front.

 

My info is the 996 Turbo AWD system under the most normal of conditions directs at least 5% of the torque to the front wheels. The max. amount that can be directed is 40%.

The 997 Turbo and its AWD system differs from that of the 996 Turbo in that it has a multi-plate wet clutch.

Thus with the ability to fully be disengaged or fully engaged it is possible that the torque distribution could be under the same conditions 0% at the front wheels and the max could rise to 100%, but I have no hard info on that.

I'll ask some of my tech contacts and see if they can shed any light.

Sincerely,

Macster.

 

Thanks Macster. You are one in a million with the way you help others. If you are ever in the Maryland area, please let me know. I owe you a few drinks.