The GTR is'nt that quick what Nissan claims

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27 February 2004
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Just run over this.......so Honda can start building the new sportcar, since the Nissan GTR seems to be slower at the Nurburgring than Nissan like to tell us

Porsche has accused Nissan of cheating in the GT-R's record bid at the Nurburgring racetrack.
Porsche has just run its own back-to-back tests with the Japanese company's GT-R supercar and says it could not get within 25 seconds of Nissan's claimed record time of seven minutes 29 seconds in April.

It also found its 911 Turbo and GT2 were both quicker than the GT-R.

"This wonder car with 7:29 could not have been a regular series production car," says August Achleitner, the 911 product chief for Porsche, speaking to the CARSguide at the Australian press preview of the latest 911 Cabrio.

"For us, it's not clear how this time is possible. What we can imagine with this Nissan is they used other tyres."

He believes the time achieved by Nissan with ex-Formula One driver Toshio Suzuki would only be possible with a semi-slick race-style tyre.

Achleitner says Porsche took a standard GT-R, running on regular road tyres, and ran it around the Nurburgring within two hours of its own cars, on the same day with exactly the same weather conditions.

He says there was no tweaking of any kind and the GT2 and Turbo both ran on regular Porsche road tyres, the Michelin Sport Cup.

"We bought the car in the US. We drove a GT-R with new tyres," he says.

Achleitner was initially protective of the exact lap times, which were run during a program when Porsche also compared its upcoming four-door Panamera with a range of potential rivals.

But he eventually revealed his team clocked the GT-R at 7 minutes 54 seconds, with the 911 Turbo managing 7:38 and the GT2 getting down to 7:34.

The laps were not run by Porsche's usual hot-lap specialist, former world rally champion and race winner Walter Rohrl, but one of the company's chassis development engineers who is an expert on the Nurburgring.

Achleitner says the back-to-back comparison was run because Porsche was concerned by Nissan's claims for the GT-R, which is heavier than the 911 with similar power.

"The Nissan is a good car. I don't want to make anything bad with my words," he says.

"It's a very consistent car. But this car is about 20 kilos heavier than the Turbo . . ."

In the end, Porsche believes its testing has achieved the right lap times for the Skyline GT-R and benchmarked it against its own 911 heroes in the right context.

"For us it has been clearly the result. This technical puzzle now fits together. With the other numbers we had problems to understand it," he says.

- Herald Sun
 
The stock 911 Turbo dosn't come with the R-compound Michelin Pilot Sport Cup tires. Dosn't suprise me the 911 Turbo went much faster with those tires. I'm not sure what the factory GT2 tire is, but stock for stock, teh GTR has much better tires than the 911 Turbo (which dosn't come with PSC from the showroom).

Tires make all the difference.
 
I want to read a third part account that is unbiased. Both company sounds bitter to me when competing for such petty things such as some seconds on a track.
 
I don't know about the 'ring, but every magazine test where they have put the GTR up against Porsche's the GTR is either right there or faster on the track than the P-cars.
 
The Porsche guys were probably driving the car around the track in reverse...the whole "engine up front" confused them.
:smile:
 
I don't know about the 'ring, but every magazine test where they have put the GTR up against Porsche's the GTR is either right there or faster on the track than the P-cars.

Time to accept that the GT-R is fast. That game was won or lost depending on the manufacturer a long time ago.
 
I have a lot of seat time in both, would that be a good enough 3rd party source? :wink:

The GTR in stock form has much better tires than the 911T. The GTR is also MUCH easier to drive to its potential than the 911T and thus most journalists will be much faster in the GTR than they would be in the 911T. Both the stock GTR and 911T are very close in terms of performance (with equally good professional drivers), but I might still give the hand to the GTR. If the 911T had equivalent tires to the GTR (like the Michelin PSC), I wouldn't be surprised if the 911T was a little quicker.

As far as the 'ring times go, I take that with a grain of salt. Track conditions can vary far too much. Heck, the track can be snowing on one end and sunny on another on the same lap! Also driver comfort level at the track is another big issue. Is the driver maximizing the car for every corner? If a driver loses 0.05 seconds a corner (which is NOTHING) for the entire track, that can equal 1 second in 20 turns. I forgot how many turns are at the 'ring, but that can easily equal a hand-full of seconds or more.

As far as many of the other head-to-head comparisons, again driver comfort level and the fact the GTR has better tires and easier to drive have often been two significant advantages it has over the 911T.

0.02
 
1. Get a real professional driver
2. Overboost dialed in by Nissan. Its been done before for inital production vehicles to get great press review. Nissan won't be the first to do it.
 
The two cars times are relative so I'm not surprised that either is faster on any given day but that doesn't account for the horrid time of 7:54 for the GT-R. The NSX-R ran 7:56 for goodness sake.

The times given for both 911s seem right on the money as far as other articles I've seen. And I've read several tests conducted independently of Nissan claiming sub-7:40 times for the GT-R.

I can imagine a 25 sec difference on street tires and perhaps a lower hp setup but that would have to mean all of the tests done on the GT-R to date were run using R-comps and an over-boosted motor and I just doubt that.

7:54 is an awful time based on all the evidence about what the GT-R has done and some of the other cars that put up better times. Didn't the LF-A test car put down a sub-7:30 as well? Surely the GT-R is in that league.
 
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The GTR's tires are near if not already R-Compound tires (sub 140 treadwear rating). Regardless, they are stickier than 'street tires', including those that come on the 911T.


Its no suprise, GTRs have been recorded at 415-430whp bone stock for a while now.
 
The laps were not run by Porsche's usual hot-lap specialist, former world rally champion and race winner Walter Rohrl, but one of the company's chassis development engineers who is an expert on the Nurburgring.


Again...one of Porsche's "chassis development engineers" couldn't replicate the time..

And this really surprises anyone?

I think the car is legit...maybe Porsche is trying to do some marketing, who knows.

Germans don't like to lose. :wink:
 
Again...one of Porsche's "chassis development engineers" couldn't replicate the time..

And this really surprises anyone?

I think the car is legit...maybe Porsche is trying to do some marketing, who knows.

Germans don't like to lose. :wink:

Yes, but the same driver was able to drive the 911s for a respectable time and by all accounts the GT-R is "easier" to extract the most out of. 7:54 is abysmal and any professional driver should have done better than that if several other drivers have managed sub 7:30s out of the GT-R.
 
Japanese GT-R has different stock tires ( Bridgestone RE070) compared to USA's GT-R tires of Dunlop. Since Porsche got their cars from US, that could be attributed to some of the difference.
 
Yes, but the same driver was able to drive the 911s for a respectable time and by all accounts the GT-R is "easier" to extract the most out of. 7:54 is abysmal and any professional driver should have done better than that if several other drivers have managed sub 7:30s out of the GT-R.

Did it ever cross your mind that one of the engineers who WORKS for Porsche may have not tried quite as hard or perhaps is not as "professional" as you might think, or perhaps likes HIS chasis setup since he helped engineer it?

I bet I can drive my NSX faster around a track than a Zo6....only because I know my car.

Could be as simple as that.

(BTW Tires make a huge difference...so I'm not saying there aren't other factors, but I'm not going to put too much into a very un-independent test)
 
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Did it ever cross your mind that one of the engineers who WORKS for Porsche may have not tried quite as hard or perhaps is not as "professional" as you might think, or perhaps likes HIS chasis setup since he helped engineer it?

I bet I can drive my NSX faster around a track than a Zo6....only because I know my car.

Could be as simple as that.

(BTW Tires make a huge difference...so I'm not saying there aren't other factors, but I'm not going to put too much into a very un-independent test)

Your suggestion that he sandbagged the Nissan is a pretty bold statement. If time after time starts coming out showing the GT-R in the sub-7:40s he's going to have some explaining to do.

I would think the driver would have a little more pride than that. That would be outrageously unprofessional behavior. Possible, but highly unlikely.

As far as the NSX vs ZO6 the ZO6 is notoriously difficult to drive fast. I have no doubt that 90% of NSX drivers would be able to drive the NSX around any track faster than the ZO6. Quite the opposite with the GT-R which by all accounts is phenomenally easy to drive fast.
 
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I doubt he sandbagged the GTR but you never know.

This won't be the last test of the car's abilities. I am sure next week we will read about Nissan testing the GTR vs the GT2 and the GTR did a 7:15 and the GT2 8:20.:rolleyes:
 
This trial run Porsche did makes no sense.... as if anyone is going to believe them.

Let's just wait for another run at the ring for the GT-R and see if we can comparable numbers.
 
There is only one test you can compare car to car. This is the Sport Auto Supertest. The GTR test will coming up in fall - so this should be soon and clear up all the storys

http://www.sportauto-online.de/aktuell_U_sport/On-Line/hxcms_article_ 502725_14653.hbs


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The NSX-R is still doing well :)

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