Don't launch your GTR....too much!
 

Guys, I just heard that those pics were from a "fuel leak" and some other things, but not from a tranny failure:D

Something is wrong with the link, copy the one on nagtroc.org. I keeps rerouting me.

it was a bunch of fuss over nothing anyways!:D

Yeah not a big deal, would suck if this has to be done to mine at any point though

How do you even use the launch control system??

Turn VDC off, turn the transmission/damping switch to R (the 3 R's). Left foot on brake, right foot on and go..in a nutshell.

And shift fast!

But by holding the brake, wouldn't that cause premature wear and stress on the transmission? I mean, does the computer know that the user is trying to use the launch mode, thereby not engaging the auto clutch?

Sounds more like powerbraking, than launch control to me

Yes. There are numbers floating around the 100-150 LC launches before the transmission go out, and when it does, prepare to dish out ~$15k to replace it if Nissan doesn't cover it.

I've seen a new GT-R on a lift at a local garage. I asked what was wrong with it and they said that it had blown tranny from drag racing.
So, some care wouldn't hurt.

I don't understand, the VDC is the switch on the right, to turn it off, you'd have to switch it down, but then you said turn all three switches to the "R", how do you do that? I thought the VDC works like this, the last switch can be left alone, which would allow traction control, switched down which turns it off, or switched up, which would place it on "R" mode.

I tried launching it yesterday with all three switches on R, the car just bogged at 2k rpms. What am I missing here??

I’ll try to explain this again. Since I don’t own a GTR I can only tell you what I’ve seen. Turn stability control off, the transaxle/ shock absorbers mode to R. Foot on break (hold it), floor the throttle, wait 'til you see the 4500 RPM..release break. You other GTR guys feel free to correct me if I"m wrong but I'm pretty sure that's how its done.

Here is how I've heard it (haven't tried it yet). From park put the car in manual mode then left and mid switch to R mode then right switch to off (down). Left foot on brake, right on gas. Car should hold at 4500 rpms. Side step brake and get ready to shift quick if you are still conscious.:D

But the instructionals on youtube has the person putting the 3 buttons all on "R", I'm confused as hell and I've done both methods, only to see a lackluster bogging at 2k rpms.

No the VDC has to be switched off. However, if the tranny isn't warm enough the car won't allow it to happen, drive the car around first.

100+ launches is pretty good, supposidly a lot of the ferraris wont last for more than 5-10 launches.

correct me if im wrong, but I heard that you don't have to shift when using LC.

Finally got it to work. I don't know if theres a program that won't let it work before 750 miles on the odometer, but its working great now. I haven't actually launched it, but if I hold the brakes, the motor stays steadily at 4.5k. Now I'm just waiting for that Z06 guy in my neighborhood to line up with me on the road one day, just kidding.

Does any other members here have that annoying whining sound coming emiting from the car. Sounds almost like radio interference. I also feel as the the mid-range to upper rpm power delivery falls off compared to my old supra TT. I'm sure a nice hollowed out downpipe will cure that problem.

Don't go too crazy with the exhaust as it frees up a lot of air and can actually hurt performance or cause over boost/boost cuts. I'm going with high-flow cats once cobb releases them so they can be tuned with my accessport.

great! The whine is normal (kinda like gear drive?), its from that GR6 trans/diff unit.

The whine is actually starting to grow on me, from outside, its got that old supercharger whine to it.

Yes, that would be your transmission. You signed a clause saying you would not complain about it to Nissan, so it's good you're getting used to it.

As far as the DP goes, hope that it doesn't change any ECU settings, because that will void the warranty if you try to fix them. It sucks, but it's the truth.

That 100-150 number? Divide it by 10. I would never powerbrake that car, or any other automatic car other than a built TH350. It's just not a good idea. It's fast, yes, I knocked almost a second off my 60' time, but I also lost a transmission due to it.

The GT-R is by definition a manual because the lack of a torque converter. I will LC maybe once or twice just to see what it is like but nothing more.

The engine revs to 4500 without the clutch engaged, then dumps it into gear and takes off. Power braking would mean that the wheels are receiving power during the process.