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Nissan GT-R and Porsche 911 Turbo dyno results

 
5 4,121 views Mar 13, 2008

nissan gt r official1 motorauthority 001 4

Nissan GT-R and Porsche 911 Turbo dyno results

Nissan GT-R and Porsche 911 Turbo dyno results

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There’s something very puzzling about Nissan’s all new GT-R supercar. Its official output figures read 480hp and 588Nm (434lb-ft) of torque and its mass registers at 1,723kg, but it can still outrun the 911 Turbo to 60mph even though the Porsche weighs in at a lower 1,633 and has a higher torque rating of 620Nm (457lb-ft).

Daryl Alison of JSpecConnect has now taken one of the first U.S.-delivered cars for a dyno run and compared with a 911 Turbo to find out what gives. You may recall that late last year, a GT-R in Japan was tested using a Dynapack dynamometer ( a dyno that connects to the actual wheel hubs of the car) and showed a peak output of 475hp at the hubs. Unfortunately, the credibility and accuracy of the test could never be confirmed.

The latest round of testing was done by the guys at Harman Motive in Torrance, California, in collaboration with auto site Edmunds and was completed using a Mustang MD-AWD-500-SE chassis dynamometer with rollers. A Dynapack dynamometer was also used for completeness.

On the Mustang dyno, the GT-R registered a peak output of 406hp at 6,400rpm and 560Nm (414lb-ft) of torque at 3,800rpm. Once you factor in the parasitic losses of the drivetrain, these numbers are fully in line with Nissan’s official figures. On the same dyno, the 997 Porsche 911 Turbo almost completely matched the GT-R. The power curves of the two cars looking almost identical.

The final check was done using the Dynapack dyno. Here the GT-R measured a peak output of 452hp and 606Nm (448lb-ft) of torque at the hubs, which is reasonable given the higher reading expected due to the elimination of the tires and several internal variations in the way power is calculated.

The final conclusion is that Nissan’s power figures are an accurate representation of the GT-Rs might, and as brilliant as the new twin-turbo V6 is equal credit must be given to the car’s new launch control system, dual-clutch gearbox and ATTESA-ETS AWD system as these are what help give the car its mystifying track times.

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Via: Edmunds

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Comments (5)

  1. By Drerx8 Posted: 3/13/2008 11:05am PDT

    I think it really has to do with the gearbox and awd system of the GTR. I haven't seen any test of the GTR against the 911 Turbo with the tiptronic (which is slightly faster than the manual). I have also not seen any test between the GTR and 911 turbo with the Sport Chrono Package (which allows overboost to 505lb/ft of torque). The 911 will probably match or one up the GTR once Porsche unveils its own DSG system (which is long overdue). I am a 911 Turbo fan till the end; but the GTR is phenomenal - the only area that the GTR looses to the 911 so far in my opinion is prestige and curb appeal.
     
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  2. By ohmy Posted: 3/13/2008 2:32pm PDT

    yea gets it in prestige but curb appeal? depends on whom you ask, i love both cars so its not a manner of picking one over the other....

    mmm we shall know more once more hit the US shores and get tested, obviously the first real test has to be against an 911 turbo....cant wait for that to happen
     
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  3. By Gus Posted: 3/13/2008 4:01pm PDT

    They are miles apart in price though, are they not?
    That's the real thing Nissan should be proud of.

    Of course, given the choice, I'd still rather have the Porsche...but when is money ever not an object?
     
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  4. By SuperSkyline89 Posted: 3/13/2008 5:26pm PDT

    Money is not an object when you have passion for what you're buying. I'm a Skyline fanatic so I couldn't justify paying so much more for a Porsche but compared to most other cars I'd gladly spend an extra year saving up for a Porsche.
     
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  5. By C6R Posted: 3/13/2008 5:31pm PDT

    GTR's mystifying track times are... just BS.
    Point me to some serious independent tests.
     
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