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Video:Porsche 991 CS v Nissan GT-R at track

Old May 7, 2012 | 10:24 PM
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Originally Posted by ChuckJ
Great analysis Heavychevy!

ChuckJ
Wait... You actually took that seriously?
 
Old May 7, 2012 | 11:33 PM
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Originally Posted by Manifold
IMO, the comparison is too simple to reliably draw conclusions. A more robust test would use multiple pro drivers, on multiple tracks, with each driver given multiple runs. A best time, or some sort of average, from all that data would be more meaningful.

But again, both cars are comparably fast, so for a non-racing situation I don't think it makes sense to base the choice between them on which one is faster. That's certainly not how I would choose.
NO.

That is the point of putting a "pro" in the seat. People trust a driver like Tiff because of his resume. He's supposed to at least be a consistent in a world of variables. Both cars should be driven pretty hard, but with the same level of effort and skill. They are supposed to be able to learn the cars limits in short order. No one is ever going to do what you are talking about with showroom stock cars.

The evidence is clearly in the video, I have spent countless hours studying data and equal hours studying youtube video lap times. My stopwatch finger is excellent, and EVO BS'd the 991 on this test.

#1 From Tiff being an idiot
#2 From straight up lying about the lap time

AND THEN HAVING THE NERVE TO ROUND UP FOR EFFECT! ("almost 3 seconds!!!" exclaimed Tiff).

Tiff is now permanently a scrub in my book, because not only did he know he screwed the 991 with that shift but then to round up on the lap time on top of that.


Originally Posted by jaspergtr
Wait... You actually took that seriously?
You tell us what time the clock says when the 991 crosses the line.......

How do you go from there to almost a second slower? Please explain?


When you learn how to study video, and analyze some data, maybe you will get a bit faster.



And yes, anyone who isn't a fake Porsche enthusiast troll, would consider that pretty damning evidence. I'm sure you have a stopwatch laying around, try it yourself.
 
Old May 8, 2012 | 12:33 AM
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Nissan can keep the Gt-R. I'll take the Porsche.
 
Old May 8, 2012 | 05:50 AM
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Originally Posted by heavychevy
NO.

That is the point of putting a "pro" in the seat. People trust a driver like Tiff because of his resume. He's supposed to at least be a consistent in a world of variables. Both cars should be driven pretty hard, but with the same level of effort and skill. They are supposed to be able to learn the cars limits in short order. No one is ever going to do what you are talking about with showroom stock cars.

The evidence is clearly in the video, I have spent countless hours studying data and equal hours studying youtube video lap times. My stopwatch finger is excellent, and EVO BS'd the 991 on this test.

#1 From Tiff being an idiot
#2 From straight up lying about the lap time

AND THEN HAVING THE NERVE TO ROUND UP FOR EFFECT! ("almost 3 seconds!!!" exclaimed Tiff).

Tiff is now permanently a scrub in my book, because not only did he know he screwed the 991 with that shift but then to round up on the lap time on top of that.
I recognize that the sort of comprehensive test I described won't be done, but the point is that such a test would eliminate debates about things like whether a single particular driver (eg, Tiff) was able to bring out the best time from each car. And if he had done three attempts in each car and taken the best lap time for each, that should have eliminated the factor of the bad shift.

It's a matter of study design and analysis of study results, and the same principles apply across all fields. For example, that's why multi-center double-blind randomized controlled trials involving large numbers of patients are preferred in medicine.
 

Last edited by Manifold; May 8, 2012 at 05:52 AM.
Old May 8, 2012 | 06:12 AM
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I see what you are saying and for that the ring times are as close as you will get, however no one knows if the cars are actually stock. And manufacturers dont all put in the same level of effort.

What im saying is that the motoring press should be held to some standard. British press are nitorious gtr huggers. And this is just plain lying. The gtr was really only 1-1.5 seconds faster. Which casts a different light considering its tire and hp advatage.
 
Old May 8, 2012 | 06:29 AM
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Originally Posted by heavychevy
I see what you are saying and for that the ring times are as close as you will get, however no one knows if the cars are actually stock. And manufacturers dont all put in the same level of effort.

What im saying is that the motoring press should be held to some standard. British press are nitorious gtr huggers. And this is just plain lying. The gtr was really only 1-1.5 seconds faster. Which casts a different light considering its tire and hp advatage.
Duly noted, thanks.
 
Old May 8, 2012 | 07:30 AM
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Originally Posted by heavychevy
And this is just plain lying. The gtr was really only 1-1.5 seconds faster. Which casts a different light considering its tire and hp advatage.
don't forget cost
 
Old May 8, 2012 | 07:54 AM
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How much would that 991S cost in a manual?

This car is going to rip continental challenge a new one.
 
Old May 8, 2012 | 08:04 AM
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Originally Posted by heavychevy
... The gtr was really only 1-1.5 seconds faster. ..
So you really think that he did all the timing in the car? And what you saw on the video is it?
 
Old May 8, 2012 | 08:33 AM
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Originally Posted by jaspergtr
So you really think that he did all the timing in the car? And what you saw on the video is it?
What I think is that the camera angle that they use at the start of the hot lap, is the same camera angle that they use at the end of the hot lap (for each individual car), and I don't see any timing equipment in the car. This means that even with all of the editing on the video, the hot lap should be real time. They likely used the video to time the lap too.

The hot laps were real time, that much is easy to tell, regardless of how many times they switched angles.

It's not hard to figure out, especially if you have played with video editing software before. They had the stop watch on the screen for goodness sake. And clearly the 991 came in well ahead of the time they are claiming for it both on the on screen timer, and from the crossing the start stop twice on the video.
 
Old May 8, 2012 | 09:47 AM
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Originally Posted by heavychevy
What I think is that the camera angle that they use at the start of the hot lap, is the same camera angle that they use at the end of the hot lap (for each individual car), and I don't see any timing equipment in the car. This means that even with all of the editing on the video, the hot lap should be real time. They likely used the video to time the lap too.

The hot laps were real time, that much is easy to tell, regardless of how many times they switched angles.

It's not hard to figure out, especially if you have played with video editing software before. They had the stop watch on the screen for goodness sake. And clearly the 991 came in well ahead of the time they are claiming for it both on the on screen timer, and from the crossing the start stop twice on the video.
Interesting... A few things:

#1 I believe (and I assume you agree) that journalists (whatever they are called) have become COMPLETELY biased, and should be used primarily for opinions and entertainment purposes.

#2 I believe that timing is standard, regardless of what video is showing. Whether there is a simple transponder, a damn iPhone app in the dude's pocket, or a dozen other things that you didn't see.

#3 Maybe the visible timing was altered BECAUSE of the editing, but they left the differences alone, because the outcome was unaffected.

#4 At least you're being relevant, and discussing the topic. But given that relevance, are you really trying to say that the 991's time was given up because of a single shift, and the tires, etc..., and that the time could be even closer? Because to counter, we could all just say - he wasn't pushing the GT-R fast enough, and we'd all be speculating.
 
Old May 8, 2012 | 11:35 AM
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Originally Posted by jaspergtr
Interesting... A few things:

#1 I believe (and I assume you agree) that journalists (whatever they are called) have become COMPLETELY biased, and should be used primarily for opinions and entertainment purposes.

#2 I believe that timing is standard, regardless of what video is showing. Whether there is a simple transponder, a damn iPhone app in the dude's pocket, or a dozen other things that you didn't see.

#3 Maybe the visible timing was altered BECAUSE of the editing, but they left the differences alone, because the outcome was unaffected.

#4 At least you're being relevant, and discussing the topic. But given that relevance, are you really trying to say that the 991's time was given up because of a single shift, and the tires, etc..., and that the time could be even closer? Because to counter, we could all just say - he wasn't pushing the GT-R fast enough, and we'd all be speculating.
I'm not speculating on the missed shift. I said before I timed it that Tiff probably lost 1-1.5 seconds on that shift, go back and read it. The worst thing you can do in a manual is sit there bouncing off the rev limiter (in a not to fast revving car) only to have to shift mid corner while trying to turn the car.

And lo and behold he lost a little over a second. That is a fact, Tiff was stupid to try 1st gear in a 7 speed manual. You can literally see the time being lost in the video.

Don't try to add imaginary scenarios to balance the field. The mistake in the 991 is VERY clear, and that's only 12 seconds into the lap. There is still 1:10 left for him to go in the 991 slow shifting and bumbling around, so any magical scenario you can come up with for the GT-R can still be applied to the Porsche.
 
Old May 8, 2012 | 12:21 PM
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Originally Posted by jaspergtr
Is there a performance increase between the 2012 Black Edition and the 2012 Premium edition?

Are you sure it isn't just a different wheels, and a red-trimmed interior?

The 2013 Black Edition at least comes with a CF wing (which doesn't offer much weight reduction over the 2013 premium).

But why not the 2013 GT-R with 545HP and LC5, instead of the 2012 530HP w/LC4?
Actually I realized I mistyped that, I mean the 2013 GT-R (which has more hp than the previous 2012 model. I'd like to put this up with next years Turbo S model. I'm assuming it will be out by next year. Since This test was between the newest GTR model and the outgoing 997 model. Seems fair dosen't it?
 
Old May 8, 2012 | 12:22 PM
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One more thing, make tiff do this test again!
 
Old May 8, 2012 | 12:42 PM
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Originally Posted by Neil Mccauley
One more thing, make tiff do this test again!
better yet, have heavychevy do it
 

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