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Last summer, Motor Trend estimated that the Nissan GT-R made at least 507-horsepower at the crank, which is quite a bit more than the manufacturer's official 480-horse rating. Now, MT decided to put to rest the firestorm it created by strapping yet another GT-R to a new type of dynamometer that's reportedly capable of calculating exact drivetrain losses, something that had previously been nothing more than an estimation. Three runs were conducted, and Godzilla delivered figures that were consistently within just a few percentage points of each other. So, what's the scoop?

According to MT, the average of those three separate dyno runs reveals that Nissan's supercar is delivering 485-horsepower @ 6050 rpm and 470 lb-ft @ 3800 rpm. That's nearly spot on for horsepower, but a good deal more torque at the crank than its official 430 lb-ft. -- we're not complaining. These tests also prove that there are indeed significant losses due to the GT-R's twin-clutch, all-wheel drive configuration, though that's also what helps launch the supercar from a dead-stop so quickly. Thanks for the tip, Franz!

Gallery: 2008 Nissan GT-R Details


[Source: Motor Trend]

MotorTrend says Nissan not lying about GT-R horsepower originally appeared on Autoblog on Tue, 30 Dec 2008 19:01:00 EST. Please see our terms for use of feeds.

Read | Permalink | Email this | Comments]]>gt-r dynogt-r horsepowerGt-rDynoGt-rHorsepowernissan gt-rnissan gt-r dynonissan gt-r dyno numbersnissan gt-r horsepowernissan gtrNissanGt-rNissanGt-rDynoNissanGt-rDynoNumbersNissanGt-rHorsepowerNissanGtrTue, 30 Dec 2008 19:01:00 EST<![CDATA[Motor Trend claims Nissan GT-R making at least 507 HP]]>http://www.autoblog.com/2008/03/29/motor-trend-claims-nissan-gt-r-making-at-least-507-hp/http://www.autoblog.com/2008/03/29/motor-trend-claims-nissan-gt-r-making-at-least-507-hp/http://www.autoblog.com/2008/03/29/motor-trend-claims-nissan-gt-r-making-at-least-507-hp/#commentsFiled under: , , ,

For car buffs it's baffling (and pretty cool, too) to see a $70,000 Nissan weighing nearly 4,000 lbs whoop up on lighter, more powerful cars. The GT-R lapped more than five seconds quicker than a Corvette Z06 and 911 Turbo at Buttonwillow Raceway during Road and Track's test, and Car and Driver pulled off some pretty incredible numbers during theirs, running 0-60 mph in 3.3 seconds and the quarter mile in just 11.5 seconds. However, some have questioned the numbers. How does the GT-R, which has a weight-to-horsepower ratio 25% higher than the Turbo and Z06, beat both around the racetrack?

Motor Trend questioned the numbers too, and decided to check for themselves when they received a GT-R to review. They took the GT-R over to K&N Engineering in San Bernardino, CA, who strapped it to their in-house chassis dyno to see just how much horsepower the car was making. Three separate runs in fourth gear netted an average of about 430 horsepower at the wheels. Assuming a conservative 15% drivetrain loss, the GT-R is actually producing more than 500 horsepower and 500 lb-ft torque at the flywheel. That helps explain the numbers, but it won't give 911 Turbo and Corvette Z06 owners any comfort. Thanks for the tip, Jake!

Gallery: Nissan GT-R (US-spec)


[Source: Motor Trend]

Motor Trend claims Nissan GT-R making at least 507 HP originally appeared on Autoblog on Sat, 29 Mar 2008 09:33:00 EST. Please see our terms for use of feeds.

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Japan's BestCar buff book grabbed the keys to a new Nissan GT-R and made for the nearest Super Autobacs. Once they arrived, they mounted Godzilla atop a Dynapack chassis dynamometer, removed the wheels and laid down a few runs to get power figures straight from the axles. The numbers are due for publication in the mag's December 25th issue, but our new friend Jeff made Christmas come early.

The dyno chart shows a peak output of 475 hp at 6,115 rpm and 428 lb.-ft. of torque at 5,130 rpm. Those numbers are incredible close to Nissan's claim of 480 hp and 430 lb.-ft. of twist, but we'll have to wait until a few lucky souls slap the GT-R onto a set of rollers to get some idea of wheel horsepower and torque figures.

Looking over the chart shows very little happening before 3,000 rpm, which is contrary to a number of driving reports we've read so far. Turbo lag has virtually been eliminated on many new models, the GT-R included, so we're assuming that the Dynapack at Super Autobacs wasn't paying attention until later on in the rev range.

[Source: NAGTROC]

Nissan GT-R dynoed at 475 hp, 428 lb.-ft. of torque originally appeared on Autoblog on Fri, 14 Dec 2007 20:03:00 EST. Please see our terms for use of feeds.

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