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Old 06-29-2008, 08:41 PM   #26
Kickhard
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Originally Posted by Goodwood View Post
Where the heck did you hear that fairytail? If you couldn't use it, they wouldn't put it in the car, would they?
You must not have heard or been reading the post from other forums lately. Its no fairytail.

Some person in the Middle east recieved their US spec GTR and scanned the Owners manual which had a lot of disclaimers about turning off the VDC. From my understanding you have to turn off the VDC in order to use the LC. And yes we all agree its stupid.
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Old 06-29-2008, 11:14 PM   #27
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im glad that more people are writing and seeing this as a real issue. Im gonna wait it out and see what happens. (almost glad the gtr doesnt come in until sept) I am really discouraged. You dont see the magazines reviewing the zo6, the gallardo, ect at different slower times. I wish someone would write to c/d and road and track and tell them to run and schedule another test immeadiately. I would be willing to put money in a pot that could be distributed to one or two of the first owners to take their cars to the track and get time slips and to dyno them.
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Old 06-30-2008, 12:06 AM   #28
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I really don't think there is anything to worry about. Nissan would be committing suicide by putting out "pre-production" cars that give widely claimed numbers, and then sell customers, ESPECIALLY us American customers, a "detuned" version. Contrary to what we all might think, these guys are not "professional" drivers, they are journalists. If they were, I'm sure they could make a better living doing other things. I will be the 1st to admit that I probably won't be able to duplicate the 3.5 second 0-60. Hell, I've seen Z06 times from 3.5-4 seconds, and it depends on the publication. Used to drive a CTS-v, and that 4.6sec 0-60 time GM claimed was almost duplicated by MT, at 4.7sec. They were afraid they were going to grenade the rear diff, which I managed to do myself. For me, it will be hard to put stake in a lay person telling me they went to the track and only ran a 12.1 quarter mile. Again, not a professional driver. Don't get me wrong. I know no one wants to pull up next to a Z06 or a 911 turbo at a stoplight and get embarrassed, but hey, up here with cars of this magnitude, its a drivers race. Just my $.02.

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Old 06-30-2008, 12:22 AM   #29
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Not a fairy tale...LC data will be recorded, stored, and will be documented as abuse in a warranty claim.
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Old 06-30-2008, 01:18 AM   #30
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thanks for the input mabcrna, and your right. I just got finished reading the other form. It has a ten page thread on this subjest and it is mostly just one person flaming the other. im hoping that the magazines just didnt use launch control or they had the speed limiter set at 111mph. I dont know why this would be the case these last two times. when the car mags were bragging previously that they launched the car 15 times in a row and allways produced extreamly similar times. Well wait and see. no im not buying the car for 0-60 times and 1/4 mile drags. but acceleration is an important thing to everyone that looks into buying a supercar. still the descrepancy is big bt the most recent tests and the previous tests.
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Old 06-30-2008, 01:31 AM   #31
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where does it state that in the warrenty. that you cannot use the lc. do you have a copy of that??? im not saying that your wrong. id just like to see it. I have a copy of the owners manual it talks about how to put the car into r mode ect.
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Old 06-30-2008, 02:14 AM   #32
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Nissan does not mention " Launch Mode" in any manual, and does not officially know what Launch mode is. It was invented by someone abusing the intended design of the car, and then advertised on the internet.
If LC is used, and there is a failure, warranty will not pay. Throttle position, vehicle speed, engine RPM, G force, Fuel trim, brake pedal position, ect, will be used to document veh. has been driven in "LC mode"
The technology is in place to deny warranty claims on this car, due to the high cost of the parts.
If you modify anything in any way, or abuse the intended design, or do not follow the published service requirements to the tee, well, all I can say is get out your wallet.
The car was designed to run on a race track at 200MPH. Not 1/4 mile sprints.
Read your manuals very carefully, and do not deviate from the recommendations or requirements....and remember to follow all highway speed laws!!
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Old 06-30-2008, 06:08 AM   #33
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Default "...designed to run on a race track"

So it's ok with Nissan to track the GTR? Doesn't tracking the car actually void the warranty too? I know it does on a Porsche, because it states that right it the manual. That subject was discussed ad nauseum on the P car forums.
I had this LC type feature on 2 other cars, (both outlined the procedure right in the manual, btw), a Challenge Stradale and my current M5, and never once used it on either car. It's just too abusive to a car I place high value in. (I do wish I would'a tried in just once on the Stradale right before I sold it
So, until I can read the fine print in the owner's manual with my own eyes, then have it interpreted by my own service manager, I'm not going to 100% believe anything I read on an internet forum. No disrespect intended.
One more thing, Nissan's gloom and doom warnings about not modifying the car in any way is not going to prevent me from installing a catback muffler or drop in cotton gauze air filter elements either.
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Old 06-30-2008, 08:54 AM   #34
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holly shit, i dont know if you guys realized it but nissanfixer is a certified gtr mechanic, so Im guessing what he says should have a lot more weight than what we think. Im really getting kinda pissed off about the sensors, no changing tires, rims, air filter, oil, no minor mods, you cant launch the car, cant drive with the vdc off, shit i even heard rumors of a nissan only approved car wash (i of course laughed my ass off but who knows) now its running slower than it has been in the past. Doesnt this concern anyone??? I know were dying for this car and don't want to open up our eyes to the new info but its not as wonderful as i once thought is was.
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Old 06-30-2008, 11:10 AM   #35
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This was sent to me by nissanfixer and it made me feel a lot better.
Thanks man, its good to have a pro mechanic on the site.

Many things could be causing slower times now that the engine has some miles on it. That is one reason the Free Performance Optimization services are so important. Part of it is balancing the right and left air intake,(computer relearn) for the optimum fuel delivery. Can only be done with Dealership laptop and software.

Only if there is catastrophic failure of an expensive part, like the engine or trans, that nissan would be paying for on a warranty claim, would warrant the tech going in and pulling out the drive history. He may also use it to go in and look at the driving habits to recommend a more frequent service interval if he sees the car is being used aggressively.
We are not going to "report anyone" per sey, for using launch mode, and it probably wont hurt to do it once in awile. Just know that if something DOES happen, the factory will want to know what caused it, and will be asking for the data stored in the vehicle.
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Old 06-30-2008, 01:39 PM   #36
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Quote:
Originally Posted by nissanfixr View Post
Nissan does not mention " Launch Mode" in any manual, and does not officially know what Launch mode is. It was invented by someone abusing the intended design of the car, and then advertised on the internet.
If LC is used, and there is a failure, warranty will not pay. Throttle position, vehicle speed, engine RPM, G force, Fuel trim, brake pedal position, ect, will be used to document veh. has been driven in "LC mode"
The technology is in place to deny warranty claims on this car, due to the high cost of the parts.
If you modify anything in any way, or abuse the intended design, or do not follow the published service requirements to the tee, well, all I can say is get out your wallet.
The car was designed to run on a race track at 200MPH. Not 1/4 mile sprints.
Read your manuals very carefully, and do not deviate from the recommendations or requirements....and remember to follow all highway speed laws!!

I like that Nissan doesnt officially know what LC is? and was invented by someone abusing the intended design of the car? Who put the programming code in the car to allow for LC? answer Nissan engineers

Well we all know some random magazine tester said "hey let me see if this button gives me LC?" NOT buying it. Nissan just doesnt want to pay for warranty work associated with problems stemming from LC

I am not trying to be angry at you and I really appreicate your input so dont take this the wrong way.
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Old 06-30-2008, 04:36 PM   #37
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Yeah, most likely C&D did not use LC -- the times are consistent with a non-LC time.

AND if Nissan doesn't "know" about LC, they wouldn't have gotten the 3.5 0-60 they advertised in November '07. So the Nissan doesn't know line is poop.

The statement of VDC off voids warranty is also poop. Nissan GT-R website says VDC can be turned off if the driver doesn't want VDC assist. Owners manual says you can turn VDC off in situations where VDC on affects drivability.

And you can dump ECM stored data. In other words, if a tech can dump it with Consult, I can also wipe out stored data.

Will I drive my GT-R with VDC off -- you bettcha. I drive my Z car with VDC off except in slippery road conditions. Same will hold true for the GT-R.

Geez, my '03 Z was ultra modified and running FI 9 months after I bought it. AND I still got all the warranty work done. It all comes down to your relationship with the dealership's Service Manager.

Will my warranty go void -- nope.

Soooooo... I'm not putting a lot of stock in this chicken little warranty hoopla.
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Old 06-30-2008, 09:24 PM   #38
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Originally Posted by nissanfixr View Post
Nissan does not mention " Launch Mode" in any manual, and does not officially know what Launch mode is.

Is this an official Nissan statement?

If so, one could argue that if something breaks on the car as a result of LC.......LC doesn't exist.
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Old 07-01-2008, 12:15 AM   #39
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It's a quote I heard in training class from the instructor last week. We all know what it is and how to do it...but the instructor said about 6 or 7 times, "Launch mode does not exist".
Nothing is official unless you see it in writing, and interpretation of what the owners manual says might be a future litigation issue if an $18,000 trans comes apart.
Take it for what you think it's worth, and time will tell if warranty will pay for failures resulting from doing it.
I just want to warn people...It might save someone a few bucks if they're smart enough to think twice.

This is not a 350Z production car, and the data may or may not be stored in the ECM.
Make sure you read and understand everything you sign when you take delivery.
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Old 07-01-2008, 12:21 AM   #40
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Old 07-01-2008, 01:10 AM   #41
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Honestly i am truly worried and I think we should all be concerned. I am the previous owner a 2006 BMW M5 that advertised launch control at 4000 rpm. Only that was for the European Car while the U.S. car launched at 1600 r.p.m. As with the GTR the car was so new that the dealer knew nothing and when BMW finally released accurate info the first round had already been delivered. I am a long time reader of all car mags and i have never seen times differ so greatly. Be warned, we need to find out whats going on.
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Old 07-01-2008, 07:15 AM   #42
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Default LC=dumping the clutch,

Honestly folks, how many times do you dump the clutch in a true manual trans car? For me, the answer is never.
I don't see why so many folks are being so anal about the LC issue. Is it that you're a street racer and you need it to beat the guy next to you? It goes without saying, if you use it all the time, then you are going to abuse the piss out of your beloved GTR. Is this what you bought your expensive car for? Isn't the normal "pedal to the metal" launch good enough in most cases?
That said, I know I want to try it once after breakin just to see what it's like!
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Old 07-01-2008, 09:15 AM   #43
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this was taken 2 days ago as proof of great 1/4 times out of a US spec car

http://www.mygtr.com/forum/showthread.php?t=250
Now that looked like a LC launch Is this car stock?
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Old 07-01-2008, 01:23 PM   #44
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The GT-R splits the previous EDR (showed up in 2004 on Z cars) into two separate sections; the "crash" EDR (30 second data snapshot) and the VSDR. It's basically the same thing as previous, just repackaged and tweaked a little. The MFD allows you to replay selected VSDR data. As soon as we can get our hands on a GT-R service manual and compare it to the service manuals of other recent Nissan models, we'll know more about it. Quite a bit of GT-R technology is borrowed in whole or in part from systems on other models so there's a much larger knowledge database out there for Nissan systems we see on the GT-R.

I've been checking the Nissan publications site for the manuals to show up for the GT-R, but nothing yet. They've got to be coming out soon though since planned first distribution is a week (or maybe more) away. You can check TSBs on the same site by the way. Knowledge is power -- I've found most Nissan service folks aren't as familiar with recent TSBs as they should be.
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Old 07-01-2008, 01:52 PM   #45
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Quote:
Originally Posted by nissanfixr View Post
It's a quote I heard in training class from the instructor last week. We all know what it is and how to do it...but the instructor said about 6 or 7 times, "Launch mode does not exist".
Nothing is official unless you see it in writing, and interpretation of what the owners manual says might be a future litigation issue if an $18,000 trans comes apart.
Take it for what you think it's worth, and time will tell if warranty will pay for failures resulting from doing it.
I just want to warn people...It might save someone a few bucks if they're smart enough to think twice.

This is not a 350Z production car, and the data may or may not be stored in the ECM.
Make sure you read and understand everything you sign when you take delivery.
Thanks for that info.

It seems like Nissans Stance on LC is pretty close to official then. Pretty cut and dry if they say it 6-7 times.

A question Nissanfixr? Do you know of any of the cars already out there having transmission problems resulting from LC or just in general? Now that is the the real question we need to be concerned with
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Old 07-01-2008, 02:05 PM   #46
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I really hope y'all don't think that Nissan engineers were clueless when they built the GT-R, and that LC is just a strange quirk or fluke in the system. To me that would be a scary thought -- Nissan engineers just got lucky with the GT-R. Anyway, someone had to program the whole thing into the ECM. So LC is definitely not a "blind squirrel finds acorn" item. Whether they publicly admit it or not, they know it exists because they designed it.

Oh, I know, it's the setting you use to get unstuck from mud when off-roading the GT-R -- two Rs, Off, Manual, brake on, floor it and let go off the brake. Voila! Look ma, unstuck from the mud! We'll keep it a secret from the Nissan service departments -- why did you turn the VDC off? I had to get it unstuck from the mud ya know... LOL...
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Old 07-03-2008, 03:11 PM   #47
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Here is the video of Car & Driver testing between the cars. Yup, those guys didn't launch correctly and can't drive the cars.
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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Old 07-03-2008, 05:40 PM   #48
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it doesnt show them using launch control. It does show them being shitty drivers.

Tell meabout launch control i think it is as follows (What I understand is launch control is activated by turing all the controls to r (snow, vdc, track) and then flooring the gas and keeping your foot on the brake. The computer lets the car hold at 4800rmp. Then you let off the brake to launch. Are people saying the computer will not allow the r mode or not allow the engine to hold at 4800rpm. sorry for the dumb ass question.. well it is for some..
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Old 07-03-2008, 07:35 PM   #49
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Here is the video of Car & Driver testing between the cars. Yup, those guys didn't launch correctly and can't drive the cars.
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
How did he get off the track with the most forgiving car of the group?
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Old 07-03-2008, 07:56 PM   #50
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again how do you know they didnt use LC
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