My 996-based RUf RTurbo is faster than either of them in a straight line. But I am on a tangent here...

 

Torque doesn't win drag races.

 

You do realize that dyno's don't measure horsepower right?

 

Do you know how to calculate horsepower?

Even with a much lower red line, 997.1 Turbo has almost 100 more hp (with over boost in sport mode ) than 997.1GT3. A stock 997.1 turbo would outrun a stock 997.1 Gt3 every time at any speed.

It is pretty silly to argue that stock 997.1 GT3 is faster than 997.1 Turbo in straight line. It is also so easy to add power to a turbo than a GT3.
It is pretty boring and hopeless for a 997.1 GT3 owner if he/she bought the car for straight line speed.

After all, Gt3 is not a straight line car ,and it meant to be enjoyed at race track with better handling and corning speed.

However, the gen 2 997 Gt3 with more torque,better response and short gear ratio would be pretty close to gen 1 turbo in straight line,and that is amazing!

 

I have owned 997 TT and now own GT3.2. By "feel" only, I give the edge to TT just out of hole, but the movement through the gears on GT3 "feels" much faster. GT3 wins the sound and handling comparison; TT wins foul weather handling and appointments....two great machines.........

 

Weight-to-horsepower ratio is a pretty good predictor of acceleration capability. Based on this measure, the two vehicles are pretty closely matched. One could be faster than the other in a given situation, depending on what part of the power band is used.

 

Like I said, although the turbo has much, much more torque, it is horsepower that wins drag races, not torque . Certainly, torque will help the turbo walk the GT3 from a roll in some situations, but it won't help in a race from the dig. I don't need to go up hill to know it has a torque advantage, but I will say that is a very scientific method of proving your point.

Drag race the two from the dig and the race becomes one for tenths of seconds given to driver advantage. And, yeah, the turbo will be much easier to launch because of AWD, but once launched it is a hp to weight race. The OP asked which was faster in a straight line. FTR, I owned a 997 turbo and now own a .2 GT3.

 

The torque that matters is torque at the driving wheels, not engine torque. When you do the math (it is easy to do), you find that it is horsepower that determines the wheel torque. The gearbox multiplies the engine torque, so as long as you keep the engine operating at or near its horsepower peak, wheel torque is maximized. So 911dev is correct: horsepower wins drag races (all other things, like weight and drag, being equal).

 

From Road & Track:

2008 997TT 1/4 mile in 11.7 sec @121.2 mph
2010 GT3 1/4 mile in 11.8 sec @119.5 mph

Slight advantage here to the Turbo, probably because it launches harder off the line.

 

His .1 GT3 was everything but stock, and the car was faster than the turbo.
The turbo was healthy in stock form with +- 450whp. The GT3 had about 405whp, but the gearing must be considered.

 

HP never determines torque, its the other way around. Dyno's also don't measure horsepower...does anyone understand the formula that hp is calculated with?

 

Torque generated at the driving wheels depends on just two things: (1) applied horsepower from the engine and (2) wheel speed. Do you want me to show you the math?

 

And how is said hp calculated? Go back and reread what I said about dyno's not measuring hp before you comment....please...

 

I have both , with a proper driver the 2010 GT3 will walk from the 997.1 turbo anytime...

 

Dyno's don't directly measure horsepower or torque. Dynojets, for example, measure acceleration of a drum and derive horsepower and torque through calculations. However, that's irrelevant to the issue here, since we are not talking about how things are measured by a dyno.

We are talking about moving an object from point A to point B in the shortest possible time. In doing so, work is performed. The rate of doing work is described by horsepower. The faster you go from point A to point B, the greater the rate of doing work and therefore the greater the horsepower that is required to do that.

Torque does not describe rate of doing work. It merely measures a force applied at one place at one instant in time and it implies a certain acceleration of the object at that instant in time. However, the object does not continue to accelerate unless the torque is applied continuously over many wheel revolutions. That's what horsepower does.