Nissan Engineer Insists Gtr Has Only 480hp

[SS8_Gohan]

http://blogs.motortrend.com/6247428/new-ca...rned/index.html

Nissan engineers insist the GT-R really does only have 480 hp. Motohiro Matsumura, president of Nissan Technical Center North America, Inc. in Farmington Hills, Michigan, says our dyno test story, which revealed the GT-R develops 430 hp at the wheels, is basically right. But he insists our estimate of a minimum 15-percent friction losses -- which suggests the GT-R is making 507 hp -- is wrong. Matsumura-san says ultra-low friction bearings in the wheel hubs and transmission, plus the careful alignment of the all-wheel-drive system's propshafts, mean friction losses are reduced to an unprecedented 10 percent or so. We're going to get a GT-R back and conduct some coast-down tests to see if he's right.

10% drive train loss!!!!!!!!! WTF!!!

[skyline_man]

I believe him. The 911 turbo has the same power but is 100 or so odd kilos lighter. The GTR accelerates faster to 150km/h than the turbo but from then on, the turbo walks away. Taking into account that the DSG in the GTR shifts much faster than the Auto in the turbo and that the turbo has higher gearing - if the GTR has any more than 500hp - the turbo, shouldn't be faster above 150km/h than the GTR.

[ZENNON]

10% drive train loss!!!!!!!!! WTF!!!

what are you surprised about? didn't you know cars loose power through drive trains?

(ps. 10% loss is very low)

[swanny180]

No I think the point was that exactly - surprise at how low that figure is...

For a car with drive to all four wheels especially.

[ZENNON]

ps. where did you quote that 10% from exactly????

[SS8_Gohan]

No I think the point was that exactly - surprise at how low that figure is...

For a car with drive to all four wheels especially.

someone gets it

[SS8_Gohan]

ps. where did you quote that 10% from exactly????

dude, read the first post, especially the bold bit

[ZENNON]

someone gets it

haha - cool - wasn't sure cos "wtf" didn't convey much info

dude, read the first post, especially the bold bit

sorry - clicked on your link and then searched for 10% and found nothing - my bad

ps. if it is that low that is quite amazing isn't it

[SS8_Gohan]

no wuckez

the funny thing though is that if this engineer is telling the truth, what are the Corvette and Porka boys going to do now??? this was the only thing they could cling too.... "but it has like 1000hp from the factory, of course it's going to be quicker!"

sorry boys, just 480hp

[ras1983]

It will be interesting to see how reliable the GTR is in the long run. Fingers crossed that it will be tough as nails so that I can buy a good example 10 years from now; lol. Only 10% loss is phenomenal.

[sh@un]

most of the 'loss' on a chassis dyno comes from slip between the tyres and the rollers

that is all...

[thrtytwo]

It will be interesting to see how reliable the GTR is in the long run. Fingers crossed that it will be tough as nails so that I can buy a good example 10 years from now; lol. Only 10% loss is phenomenal.

you better hope that whoever owns it before you has they're bore liners re-plasma coated every 100,00k's !!

[Duncan]

why on earth is power at the engine relevent (esp when comparing it to another car)

the only thing that matters is how mcuh power ends up at the wheels

unless they have found some way for the engine to push it along the road directly.

maybe they have those guys are pretty smart

[BRUNSKIGTST]

look for a video on youtube from motortrend they say it can do more than the 500hp, they say that nissan is lieing about the 480hp lolz

[Marco-R34GTT]

Wow...

Only 10% loss... That is awesome!!

[rtune]

10% loss is amazing for a four wheel drive car.

an audi geek can tell you their drive train loss especially for auto is about 20%,

that turns a 450hp car into a 360hp car at the wheels.

[rtune]

you better hope that whoever owns it before you has they're bore liners re-plasma coated every 100,00k's !!

I think this is BS propagated by the "it must have a downside somewhere" haters.

read over this topic:

http://www.nagtroc.org/forums/index.php?showtopic=22403

and you come to the conclusion that IF the plasma coating ever needs reapplying it is likely to happen to the cars that have been tuned beyond design tolerances, rather than the production cars used like other typical exotics.

100,000 urban and highway kms is very different than 100,000 track kms or 100,000 change-only-at-redline tuned GTR kms.

[R338OY]

I'm unconvinced. The engineer has an obligation to Nissan to keep the *power lies* a secret. They've done it before, why not now with so much at stake? Even just for PR purposes every Nissan employee will need to reaffirm the claims made by the company to avoid losing its credibility.

I say he's not making up sh!t about the low-friction bearings, though 10% friction loss is amazing AND an awesome alibi, but if the engine makes more power he won't tell you regardless.

If Nissan caught him tiddle-tadding he'd end up before the executive committee performing Seppuku.

Edited June 4, 2008 by R338OY

[ZENNON]

I'm unconvinced

same - either way I think its an awesome piece of machinery

[SS8_Gohan]

hahaha, disembowelment

anyways... i that there is a wacky loop-hole in the Yanks import laws that means they can separate an engine from the car itself, and basically bringing them in in pieces (before being sold through the stealerships).

I'm sure someone will whack one on an engine dyno at some stage.... can't hide then...