http://japancarblog.com/2008/02/r35-...p-in-the-nuts/



Just a few days ago Ben Linney, the rich bloke from english land who emptied out his pockets and imported a GT-R, had his GT-R run for a small test day. What the dyno results showed was quite suprising: the official HP figures weren’t right.

Official word from Nissan is the R35 GT-R’s maximum power is 473bhp (480PS/353KW) at 6400rpm. The car is totally factory standard (though soon to be tuned), is running standard boost and is just run in. Before putting on the dyno, Linney did a quick oil change with Castrol Edge, as the car saw some track action last week. Using BP Ultimate 102 unleaded, the car recorded a staggering 520 bhp @ 6,617rpm!

Great marketing gimmick for Castrol… bragging rights for Nissan fans the world over.

 

anybody got $80K I can use????

 

F"n sweet man, the R35 is definitely on the dream cars list top spot.

 

once again, the R rises to the top!

 

lol thats awesome! but was that beacuse he was on 102 oct.? 102 would greatly increase HP on FI

 

Curious as to what type of Dyno they used.
That and if I remember doesnt the Japanese Auto Makers have a silent gentelmans agreement to not produce cars with XXX amount of HP. Though we all know that it not the real case anymore but maybe this is why the low figure was given out. Nissan didnt wish to offend the other Automakers by producing/releasing such high numbers. Just mindless speculation but damn that number over production released figures is wow!

 

Friend of mine in Wisconsin should be getting his mid June. Can't wait!

 

I think this was lifted but I agree that they are still putting out conservative power figures. Wasn't it 276hp for years? A lot of top end Japanese performance cars at that time had exactly or close to that amount back then which looked suspicious.

 

I'm sure that and some fresh oil were factors in the final numbers.

 

Doesnt surprise me much. The publisized accelration #'s and the 470 bhp figure didnt match up to me in first place. I mean with 470 bhp, factor in 15-20% drivetrain loss, so lets just say even at 400 whp on a car that heavy putting down 0-60 in 3.5?? Didnt seem to fit, but the dyno #'s listed above do. Damn.

 

oooomahgawd

 

I can't stand it when people use high octane fuel just to cheat their numbers. I also don't like when people try to use some drivetrain loss formula to figure out what the power level is at the engine. I'm sure it is rated a little bit conservative but I'll bet not by much. It's probably around 490 hp or so. Not that this level of power is anything to laugh at.

 

european 102 oct translate to 96 octane by US calculation methods, thats the standard octane they use for their premium gas in europe.

 

That makes more sense. Still a little higher than what we get here but not enough to be a huge difference. Very nice numbers.

I still do hate it when people use higher octane than they'd run on the street when they dyno though. It seems like every RX-7 guy cheats his numbers this way.

 

So maybe some castrol edge and 102 octane will get my stock 8 up to about 275 at the engine?

 

I think that 102 octane helped a bit , but it doesn't surprise me that the GT-R is making more HP than stated. Nissan tends to underate there motors. My 05 nissan Titan was always putting out 317 BHP compared to the 305 that Nissan stated. A 06 and 07 put out the same numbers as my 05 does. The new SAE uncovered the correct info.

Z cars never seem to be affected by underated Hp claims for some reason, there always on the nose with there HP ratings. Nissan just hurts them by adding unwanted pounds to rob them of there small Hp increases.

 

according to autoblog the smaller/shorter Z mule thats testing around nurburgring for the past few months is actually the new 370Z thats going to debute later this year in NY autoshow. They thought Nissan is working on a new smaller model, but it has been confirmed to be the new Z. Apparently they are indeed trying to make it lighter

 

I hate that too. If your drivetrain consumes 35hp when the car is stock, it will always consume 35hp, regardless of any increase or decrease to the motor’s power output (unless something was done to the tranny, driveshaft, diff, etc.).

For that GT-R a 63hp loss, even though it is awd, is a bit high IMO.

 

Uhh do you have any evidence for this?

 

Damn, that's a whole lotta power..

 

Guys, c'mon....a stock 2005 RX-8 is more accurately around 220 bhp and 180whp, which equals around 20% loss.

The stock 2005 350Z is like 290bhp and 230whp, which is a around 20% as well.

Yes, the GTR in this example has 12% loss but is still close to the range. The 15-20% wasnt exactly definitive, but it is a close enough generalization to the reality of drivetrain loss percentage for most cars. You act like this "formula" is SO off, when in reality, it fits most stock cars within a couple points.

 

dam nissan!! dam mazda!!

 

There have been people that have dyno'd at 165 and there are others who have topped 200. You just can't tell on this car. I personally don't feel the car comes with even 220 hp stock. A few of us personally know an internally stock Renesis that hits 230 hp at the wheels!

Not all cars have the same drivetrain loss as others. FWD cars for example don't lose as much to drivetrain. However not all FWD cars lose the same amount and neither do all RWD cars. This alone makes it IMPOSSIBLE to use a drivetrain loss formula to determine crank hp without actually measuring drivetrain loss directly in it's own dedicated test. It CAN NOT work EVER!!!

 

I want one :drool

 

I was thinking the same , everycar is always in a ball park figure within 20+/- WHP on the dyno. I been on this forum since 2006 and have comparing alot of dyno's on and off this forum of the 8 . I seen some dyno as low as 160HP some high as 204Hp on a stock 232HP Renisis. But what also plays a big part in the HP game , is where the car was dynoed(sea level,mountain, desert, etc), condition of rotary , type of dyno, etc.... like RotaryGod explained , it just impossible to pinpoint a static figure for our cars.

I guess when we buy our cars, we either get a real factory "freak" or a factory "snoozer". I haven't dynoed my stock RX-8 car yet, but i have run against 5 diffrent Rx-8 , 2 stock trim 232Hp, 3 guys with bolt ons and have beat them all by a solid 2 car lengths give or take a few feet , better driver, possible.... but they all agree that my Rx-8 is a pretty strong car.

I went back to mazda before the new year and test drove a used Shinka, it felt weak compared to my RX-8. It was strong but not as strong as my 8. My 1999 Mustang was on the weak side compared to my buddies 99 stang. He was a horrible driver but danm his stock Mustang made up for his lack of driving talent, he got a factory freak , a very strong motor that would shame even slightly modded mustangs.

I think alot of us get some good ones, alot of us get some bad ones, then alot of use get the rest that is in between.