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Are Nissan cheating?


michael

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http://carsguide.news.com.au/site/motoring-news/story/porsche_accuses_nissan_of_cheating_at_nurburgring/

 

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.

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that's very interesting, I always thought "their figures don't seem to add up" myself but had no way to prove it one way or another - you know when something doesn't seem right and all you can do is shrug it off as one of those "claims" that seems weird but is hard to dispute...

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The laps were done by a Porche chassis specialist.

 

For me the usual Porche driver should drive the Porche and Nissan should have there own driver who accomplished the original time.

 

They are two very different cars and expecting the Porche chassis specialist to put down the same time is crazy, the fact he got close speaks loads for the GTR.

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Guest CoolsBlue

top gear said that each gtr r35 has a hand made engine and a specially tailored gear box so each one puts out different powers...porsche needs to accept that nissan has the title...

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top gear said that each gtr r35 has a hand made engine and a specially tailored gear box so each one puts out different powers...porsche needs to accept that nissan has the title...

 

What 20 seconds+ difference in engine and gearbox? Do not read too much into the different power figures. Not saying it is not true but not 20+ seconds different.

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Yep ... I think Porsche is a little bit concerned that the GTR scatches at their ego. Porsche has to admit (numerous tests in magazines can justify) that the GTR is the better handler on various road conditions due to the fact that it gets its power better on the ground.

 

It makes me laugh that Porsche wastes their time testing a GTR on the Ring ... they should concentrate on developping their cars instead of analyzing what other manufacutres have done better :)

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top gear said that each gtr r35 has a hand made engine and a specially tailored gear box so each one puts out different powers...porsche needs to accept that nissan has the title...

 

Well if Top Gear said! :rolleyes: :D

 

TBH I bet Nissan are not cheating but merely 'twisting' the figures slightly....

 

As far as I see it Porsche are specialist 'sport' car developers... Nissan on the otehr hand... well most of their cars are driven in Bradford.

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2 things stand out for me;

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.

Eh?

911 Turbo = 480bhp?

GTR = 550bhp?

Not that similar, although that should work in the GTR's favour so another reason it shouldn't have been slower.

 

We bought the car in the US

Won't it have been setup for US fuel, which isn't quite as potent as ours, so it wouldn't have been at its full potential?

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