Motor Trend claims Nissan GT-R making at least 507 HP
#1
Motor Trend claims Nissan GT-R making at least 507 HP
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.
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.
#2
Thanks for the post DJ.
I think this partially explains the incredible performance numbers in such a heavy car. While I have no hard data to prove it, I am guessing that a significant part of its straight line performance is due to its e-gearbox. With some cars generating so much power these days, we are starting to see automatic type trannies outperforming manuals (ex, 997TT tip is faster than manual in straight line tests). I think ability to 'launch' and actual shift times are becoming very significant.
I think this helps explain the straight line figures, but there is no doubting the GT-R is a fantastic performer in many many ways.
My predictions are that 1) the PDK on the 997TT will be faster in a straight line than the present tip and manual and 2) there will be a launch control mechanism in place a la GT2.
Will these things shave 5 seconds off at Button Willow? No way.
I think this partially explains the incredible performance numbers in such a heavy car. While I have no hard data to prove it, I am guessing that a significant part of its straight line performance is due to its e-gearbox. With some cars generating so much power these days, we are starting to see automatic type trannies outperforming manuals (ex, 997TT tip is faster than manual in straight line tests). I think ability to 'launch' and actual shift times are becoming very significant.
I think this helps explain the straight line figures, but there is no doubting the GT-R is a fantastic performer in many many ways.
My predictions are that 1) the PDK on the 997TT will be faster in a straight line than the present tip and manual and 2) there will be a launch control mechanism in place a la GT2.
Will these things shave 5 seconds off at Button Willow? No way.
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