why does it do this?
 

ok i have tried to show off when i first got my car and tried to launch at around 4500 no higher and then went to shift into second and when it did it just acted funny as hell, it went into like a limp mode is it becaus of a safety feature they may have installed to save the clutch or can the cluthc not handle that? and yes i know and never will try to launch that hard but just that one time worries me. thanks!:confused:

http://mypetjawa.mu.nu/archives/picard-facepalm.jpg


Umm...was your traction control off? Because when its on, it does this funny little thing to keep you from dying.

Wow! Why so hard on the car when you first got it?Not even broke in!
Being worried when you abuse the car?
Take the time to grow up and not be so foolish!
Did you over rev when you launched as the tires were spinning?

Umm...was your traction control off? Because when its on, it does this funny little thing to keep you from dying.[/QUOTE]

:icon18:

it is broken in with 10000 miles and yes traction control was off.. if your not gonna help me out then why even reply.

OK!

That was a very aggressive launch. Try not to do it again! I don't think that was a safety feature that went off. Sounds like something not so good might have happened. Someone please correct me if I'm wrong, I don't wanna give the guy misinformation.

If you re read your post it states "when I first got my car"!Also with your post it states you drive an 09 Z? So with the Z being fairly new most would assume you got a new Z!
Thats how I took your post and that was my reply.
So you are saying that it was a used 09 Z with 10,000 miles on it?
At any rate you did state you were "showing off when you first got the car"!
Not exactly the smartest thing to be doing in my opinion!Shows a little immaturity don't you think?

There's this thing called a rev-limiter. You found it.

Agreed with the traction control comments. It would have felt pretty messed up if you had left that on, like the car was messed up.

... While I do think he was foolish for launching the car before he knew the limits of it from driving it around... He is certainly not foolish for driving the car hard before break in... there are MANY schools of thought on this and I can tell you I redlined my car once every day for the first 2k miles... You should have seen all the crap after my first oil change that came out w/ the oil...

The part I put in bold above -- I just want to make sure I understand -- are you saying that as a positive? i.e., that it's a good thing for a bunch of crap to come out with your oil? If so, can you elaborate on why it's a positive? :confused:

The the OP . . . you stated that you "tried to launch at around 4500 no higher and then went to shift into second . . ." Am I to understand that you held the clutch pedal in at 4500 then dumped it directly from neutral to 2nd gear? Or did you start off in 1st gear? I guess what I'm trying to figure out is what rpm you were at when you shifted into 2nd, and from which gear. Presumably, you would have shifted into 2nd from 1st, but the way you wrote it kinda makes it sound like you skipped 1st gear altogether and tried launching straight from 2nd.

agree! and i got my Z wit 15 miles on it... its not my first rodeo BLOWN32 "Not exactly the smartest thing to be doing in my opinion!Shows a little immaturity don't you think?" and if you own a Z you know you have shown off before and who do you think you are to say i am immature? everyone has done it once

i was launching around 4000 rpm in first gear an then hit say 7000 rpm and went into second and thats when it happend so yes i did start in first..

Hmm...in that case, I see no reason it would have hit the rev-limiter in 2nd. Unless -- were you power-shifting? Like did you lift off the throttle in between 1st and 2nd? If you didn't lift in between, then maybe in that split second between gears it ran up to redline and triggered the rev-limiter. That's all I can think of. You already said you had TC off, so that shouldn't kicked in. (I'm just trying to be constructive. ;))

Thank you and one more thing has anyone heard your clutch box i think thats what it is but when you take it out of first and are parked or stopped can you hear your clutch spinning kind of loud just a ? those lil noises bother me

I love it when people go all high and mighty on someone else when they beat their car. Who cares? Its their car...and their money. They didn't grab your keys and beat your car...or your dog :)

Beat away my friend...beat away.

Just take pics/video next time.


:tup:

Wow dude I seen people put there foot in there mouth but you really buried yourself!Brilliant mindset you have!DAH!
Sure says alot about what is going on in you head?..SCARY!

Even with VDC off it's not completely "off" you probably either hit rev-limiter and it blipped back down as you tried to shift or you set off a VDC parameter which kicked in. That's my best guess...launching at 4500 is ok if you know how to properly slip the clutch. Get it wrong and you'll bog and or glaze the flywheel/clutch plates which will require a new clutch!

Well I own a Z and sure as hell wouldn't launch it as a drag car?I bought the car because it is a sports car.Not a drag car.I have a drag car and sure wouldn't think of abusing my Z in the manor you have from day one and my opinion is you are a jerk.Immature jerk at a that!
Not only are you the above but you have contradicted yourself by first saying you showed off with you new Z and second post said it wasn"t new and already was broken in and now you say it had 15 miles on it???
Which is it dude?Do you really know what you are talking about at all?

One other thing to be aware of with this car (if you aren't already) is that it has a very heavy flywheel. More mass = more inertia. You may have noticed that in between upshifts, the revs are a little slow to drop -- that's due to the inertia of the flywheel. The way it could factor into what happened is that if you were going WOT, when you disengaged the clutch with all that power going to the flywheel a moment before, the flywheel could have actually gone up in revs momentarily, even if you lifted off the throttle. And if you were really close to redline, it may have been just enough to hit redline and trip the limiter.

Speaking of the flywheel, it's the flywheel you're hearing, not the clutch, and yes I hear it too. It's normal for this car. In fact, flywheel noise is why Nissan put such a heavy flywheel in. They did the same thing in the 350Z. I don't fully understand the technical aspects of it, but a higher mass flywheel = less noise. I had a 350 before the 370 and put in a JWT lightweight flywheel. Man, my car sounded awful after doing that! The performance gain was there, sure. But sitting there at idle with the clutch disengaged? It sounded like something was wrong with my engine! :rofl2:

an immature jerk haha

Lol

I have no stake in the matter here...but why do you care how he drives his car? Just curious as to what the mindset is here. Just wondering.

+1. Its his dam car, its not like he is doing it to yours.

Hell the guy might be worth millions and its a throw away car. If he wants to lite his car on fire and sit in the middle of it, its aaaa oooo kayyyy by me. Long as he payed for it and has no more payments haha. I woudlnt want to see nissan get cheated out of what they were owed.

His insurance would pay off Nissan. And for some strange reason, the idea of insurance companies getting screwed doesn't bother me so much. :rolleyes:

and yes BLOWN lol my car is paid for was the day i bought it the second i signed for it hooooooooora

I'm with you there, for some reason that thought actually makes me really really REALLY happy.

As for the strange sensation I have no new guesses other than what the other guys have said. Have you considered trying a few launches at different (lower) rpms to see if you can recreate it without as much power (and without as much chance to hurt something)? Edit: Or maybe trying a 2500 rpm launch with the VDC still on to see if it is the same sensation as before.

To blown I say :gtfo2: It's his car, he can drive it anyway he chooses. If he blows it up, maybe we will be lucky enough to hear how and it will give us even more information about the cars we all love. From what I've seen in this thread you're the one being immature. The man posted a question, he didn't ask to be treated like a jackass.

-William

thanks man yea from a digg at 3000 its solid it was just me i guess thanks again...

Try launching in 2nd at 4500-5500rpm. You will really impress your friends!

I believe a forum is for people to speak there peace and we all have opinions as you do also.It is a known fact that there is a break in period with the new Z as some others on this site have spoke of and agreed.Some choose to break in how they wish.I happen to believe that Nissan knows better then most in that respect so I chose to abide by there recomendation!To show off in the manor which he did was foolish and immature in my opinion.
As for me caring? I could care less how he drives his car.He can drive it off a cliff or hold the pedal to the floor to see how long before it blows up.I do have a right to my opinion though if I think his actions are foolish.
My mindset as a mature individual is to use good common sense,proper care of my vehicle which by the way is quite an investment and to think of the safety of others also.
If you read his posts he contradicts himself many times So I stated my opinion.We all know how opinions go so we all have one.No one has to agree with me nor I with anyone else.Just a freedom we have and it is my belief we have that right on this site.
No one has to agree with or care about my opinion.Apparently you have a concern.I hope I have helped you understand my mindset.Have a good one!

^^^^ cliff notes plz

man that sounds kinda scary and i think i will just sit there and spin lol.. also for BLOWN i want to keep my car well maintained and others safe lol haha... no but really 2nd gear at 4500 from a digg? your kidding me right...

Did you honestly think you can come in here saying you beat up on your new car to impress your buddies and then want us to poinpoint why you misshifted into 2nd and not get ish for it?

man there is a bunch of true asses in here

Was your car warmed up? The ecu limits rpms until the car is warmed up.

lol..

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