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Nissan GT-R (Official pics & info)This is a discussion on Nissan GT-R (Official pics & info) within the Nissan forums, part of the Japanese Cars category; Just seen on Topgear; The Nissan GT-R went around the Topgear track in 1:19.7 which puts it above : Lamborghini ... |
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| | #201 |
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![]() ![]() | Re: Nissan GT-R (Official pics & info) Just seen on Topgear; The Nissan GT-R went around the Topgear track in 1:19.7 which puts it above : Lamborghini LP640 1:19.8 Carrera GT 1:19.8 Mclaren SLR 1:20.9 Ferrari 599 1:21.2 This car has an unbelievable performance / value ratio. ![]() |
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![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: Nissan GT-R (Official pics & info) I just saw one last night before going to the movies... It had Ontario licence plates and it was just sitting pretty in the parking lot... In the flesh it looks even better then in pictures, it looks really fanstastic, mean and aggressive! And the brake system is intense! ![]() I was always a fan of Skyline GTRs and this is a trully worthy successor, in term of looks and of course in performance. Kudos to Nissan for this one! ![]() ![]()
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| | #203 |
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![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: Nissan GT-R (Official pics & info) Yep...and it's funny that there are people who still doubt this car's performance and claim that Nissan is making up track stats. LOL.
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| | #205 | |
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![]() ![]() ![]() ![]() | Re: Nissan GT-R (Official pics & info) Quote:
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| | #206 |
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![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: Nissan GT-R (Official pics & info) What is the GT-R’s Real Horsepower? ![]() ![]() Despite what Nissan claims, the GT-R is not making the advertised 480 horsepower. BY LARRY WEBSTER, PHOTOGRAPHY BY JEFFREY G. RUSSELL “It’s a ringer,” we said among ourselves as soon as the first Nissan GT-R’s test results were in. Despite a power-to-weight ratio that’s 30 percent worse than that of the similarly priced Corvette Z06, that first GT-R outran the Z06 to 60 mph (3.3 seconds versus 3.4 for the quickest Z06 we’ve tested) and through the quarter-mile (11.5 at 124 mph versus 11.8 at 125). Even allowing for the launch advantages of all-wheel drive, the GT-R’s performance made us suspicious. It wouldn’t be hard for Nissan engineers, we surmised, to crank up the boost and thus jack up horsepower that would result in astonishing track numbers in American car-magazine tests. The GT-R was in such demand and our allotted time with it was so short, however, that we didn’t have time to strap it onto a chassis dyno and measure the horsepower. We soon tested two more GT-Rs, and supporting our suspicions, they were considerably slower. GT-R No. 2 was 0.6 second behind the No. 1 through the quarter, and GT-R numero tres was a disturbing 1.1 seconds slower. Again, we didn’t have enough time to dyno-test those cars, but it seemed clear that the first GT-R was likely a one-of-a-kind rocket. We finally got the opportunity to run a GT-R on a chassis dyno in May after Tony Swan returned with the example he used for the One Lap of America competition. The only problem with that car—No. 4 in our series—was that it performed about as well as the first. There were some differences, as you can see in the chart below, but those can easily be chalked up to the fact that the cars were tested on different days at different tracks. Yes, we do perform a weather correction to account for much of the ambient-condition difference, but no correction is perfect. A brief primer on the Mustang chassis dyno we used: Picture a pair of parallel, supersized rolling pins mounted in the floor. The car is strapped down so that the front wheels are on one roller and the rears on the other. The operator puts the car in gear and, via the tires, spins these rollers, which are attached to a device that measures the applied force. A computer that ties into the car’s diagnostic plug and reads engine rpm calculates the horsepower. This power figure is what’s known as “wheel horsepower,” and it’s less than the engine horsepower that’s listed in our specs because the drivetrain components—transmission, driveshafts, bearings, differential—all have internal friction that soaks up power. How much power is lost in the journey to the road is not accurately known, but a 15-percent loss for rear-drive cars with manual transmissions and a near 20-percent loss for four-wheel-drive cars are good estimates. On MotorCity Speed’s Mustang dyno in Commerce Township, Michigan, GT-R No. 4 produced a peak of 415 horsepower at the wheels. Based on our 20-percent loss estimate, the engine output was 519, or 39 horsepower more than Nissan’s stated 480. So what’s up? We called Nissan, and the company says the first four cars we tested were early-build versions that received regular engine-computer software updates, which may account for the varied results we recorded. We then wondered which engine-computer calibration was the one real-world GT-R buyers would receive. Three weeks later, a fifth GT-R arrived. This one, allegedly, was a production version with the latest—and final—engine calibration. We took it both to the test track and MotorCity’s dyno. This car performed nearly identically to the fourth car. It smoked the quarter-mile in 11.6 seconds at 120 mph and produced 420 wheel horsepower. We also measured the turbo boost pressure in both cars, and the curves were basically identical. Though we didn’t get a chance to dyno-test the two slower GT-Rs, three of the five were so close in performance that we believe they accurately represent the GT-R’s capability. Clearly, Nissan is delivering more than the advertised 480 horsepower. And the most likely figure is about 520, which is yet another reason to bow to the best performance value since the Corvette Z06. caranddriver
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| | #207 |
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![]() ![]() ![]() ![]() ![]() ![]() | Re: Nissan GT-R (Official pics & info) What a car. ![]() Ofcourse there's PR horse power and then there's real world horse power (witch can actually vary ). |
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| | #208 | |
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![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Nissan refuted the 520HP theory. All these 500+ HP estimate is based on 15-20% driveline loss, but according to Nissan it only has 10% driveline loss (surprisngly low for an AWD car, but then again the GTR is full of surprises). From Nissan 360 Day 1: Things I've Learned | Car News Blog at Motor Trend. Quote:
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| | #209 |
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![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | Re: Nissan GT-R (Official pics & info) Toyo Tires bringing custom Nissan GT-R to SEMA Over-the-top customization is the hallmark of the SEMA (Specialty Equipment Market Association) show, held in Las Vegas every year. In just about a month's time, Toyo Tires will be featuring a special Nissan GT-R, shod in a set of 20-inch Proxes R888 racing tires - the first set of the gigantic race tires from Toyo. The rest of the custom work on the car will be done by Bulletproof Automotive. Custom BBK wheels will be the support system for the advanced Toyo tires, which are sized in 285/35ZR20 for the front and 315/30ZR20 for the rear. A flotilla of carbon-fiber component upgrades, an Amuse Super Tough Titanium (STT) exhaust and Endless monoblock six-piston front and rear brakes round out the performance upgrades. In addition to the GT-R, a bevy of custom cars flaunting special tires will be on display at the Toyo booth. A custom 1931 Studebaker Model 54 hot rod, a 650hp (485kW) Mitsubishi Evo X, another iteration of the fully-custom 800hp (596kW) Bentley Tetsu GTR, and a unique Toyota Tundra will all be on show. A sixth and as yet secret vehicle will also be on display, wearing Proxes ST II tires, which are designed for sport trucks, SUVs and crossovers. ![]()
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