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2003-2009 Nissan 350Z

Help. Did I **** up the 350z already!!

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Old May 23, 2006 | 11:35 AM
  #21  
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the description of what he did is not very good but it sounds like he had problems using his clutch.
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Old May 23, 2006 | 11:56 AM
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Originally Posted by Sailor
Don't want to be the bearer of bad news but same thing happened to me about two weeks ago then last week the clutch started slipping badly. The dealer says that the clutch and flywheel are shot and need to be replaced and they consider it normal wear and tear so it is not covered by warranty and will cost me $2000. Car has 14K on it and have complained to dealer and head office with no success so off to small claims court next.
I don't see how you can do any serious clutch damage at 4000 rpm when you are doing 50 down the freeway. 3rd, 4th, 5th, or 6th gear could absorb that rpm at that speed and not do much damage. Now if he was sitting at a stoplight slipping the clutch at 4000 rpm, then there is going to be some damage.

Again we are dealing with limited info hear, and I don't understand why the RPM's were bouncing around, so maybe there is a deeper mechanical problem going on, but that should have anything to do with what he did.
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Old May 23, 2006 | 12:33 PM
  #23  
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In my case I was doing about 55 in 6th, dropped to 5th but clutch pedal stayed depressed and revs shot up to 6500 as I started to accelerate, car slowed right down hich was scary as I was trying to overtake someone at the time, that's when I noticed the burning smell. This all happened over just a few seconds, not like it was revving the engine for a long period. I have driven a stick shift for years and have never had a problem like this before. Saddest thing is the dealer actually had the nerve to tell me that if you drive the car like a sports car the clutch won't last.
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Old May 23, 2006 | 12:48 PM
  #24  
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Originally Posted by Sailor
In my case I was doing about 55 in 6th, dropped to 5th but clutch pedal stayed depressed and revs shot up to 6500 as I started to accelerate, car slowed right down hich was scary as I was trying to overtake someone at the time, that's when I noticed the burning smell. This all happened over just a few seconds, not like it was revving the engine for a long period. I have driven a stick shift for years and have never had a problem like this before. Saddest thing is the dealer actually had the nerve to tell me that if you drive the car like a sports car the clutch won't last.
I'm glad my dealer isn't that way. He actually tells me to drive it like it was meant to be driven and don't worry.

In your situation, which may be the same as his, it was a mechanical problem(the clutch not fully engaging) which caused you to burn the clutch as you thought it was engaged and ready to accellerate. That sucks! Definitely doesn't sound like any fault of yours, but that's one of those things that will be tough to prove. Good luck!
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Old May 23, 2006 | 01:29 PM
  #25  
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Originally Posted by gsazabi
So you guys are saying blipping the throttle from 2k to 4k,
4k to 6k, etc. isn't good when you rev match?

Hmmm when I watch those guys driving in Tsukuba circuit
in Best Motoring International, they rev the rpm up almost to the
redline when they do hill-and-toe downshifting.
Like when they enter the corner on third around 4-5k,
they blip the throttle to nearly redline before dropping into 2nd gear.

I'm very confused
I've seen one of those videos where the guy driving an NSX damaged his engine because he downshifted too early. It was near the end of the race and he was driving hard trying to catch the lead car. Unfortunately he was still going too fast for the gear he selected and you could hear the engine over-rev terribly.... then directly afterwards his car was no longer in a hurry and he starts complaining that "the stupid engine is overheating". It just goes to show that even the pros make mistakes.

In the Z, our manual lists top speeds for gears 1-3....

1 - 35mph
2 - 60mph
3 - 85mph

Revmatching is just matching the engine speed to your landspeed X the gear you're about to select. Whether you're upshifting or downshifting, it's relatively simple. You have to know how to revmatch before you worry about heel-toe downshifting. I think most people who heel-toe have a feel for when to downshift by the engine note. I don't pay much attention to my tach or speedo when heel-toe downshifting, I've got more important things to concentrate on.
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Old May 23, 2006 | 01:36 PM
  #26  
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Originally Posted by roast
I've seen one of those videos where the guy driving an NSX damaged his engine because he downshifted too early. It was near the end of the race and he was driving hard trying to catch the lead car. Unfortunately he was still going too fast for the gear he selected and you could hear the engine over-rev terribly.... then directly afterwards his car was no longer in a hurry and he starts complaining that "the stupid engine is overheating". It just goes to show that even the pros make mistakes.

In the Z, our manual lists top speeds for gears 1-3....

1 - 35mph
2 - 60mph
3 - 85mph

Revmatching is just matching the engine speed to your landspeed X the gear you're about to select. Whether you're upshifting or downshifting, it's relatively simple. You have to know how to revmatch before you worry about heel-toe downshifting. I think most people who heel-toe have a feel for when to downshift by the engine note. I don't pay much attention to my tach or speedo when heel-toe downshifting, I've got more important things to concentrate on.
Is that recommended or is that pretty much the max?
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Old May 23, 2006 | 02:41 PM
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Originally Posted by Z4Zoro
In my mustang I was able to rev up in 5th gear and drop it down to 4th. On the freeway I would be in 5th at 2rpm rev to about 3.5 and shift and had no problems.

Today in the Z I was in 5th gear going about 50mph at 2000 rpms. I reved up to about 4000 rpms and shifted in. The rpm gauge went left and right about 5 times. The clutch stayed in and released in a matter of seconds. After on the way home I had a weird smell. Did not smell like a clutch though. Not sure where it was coming from, I poped the hood and it smelt more electical than anything. Do you think I already ****ed the car up? Or is the smell growing pains?

Hopefully it settles over night.
Wait im confused. Let me see if i can get this straight.

So you were in 5th gear at a constant 2k rpms... and reved up to 4k in 5th gear right before downshifting? If i got this right, why would you wanna rev up to 4k then downshift???
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Old May 23, 2006 | 02:52 PM
  #28  
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Originally Posted by skaterbasist
Wait im confused. Let me see if i can get this straight.

So you were in 5th gear at a constant 2k rpms... and reved up to 4k in 5th gear right before downshifting? If i got this right, why would you wanna rev up to 4k then downshift???
It is called rev matching, come on. Maybe I missed 4th to 2nd,
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Old May 23, 2006 | 03:08 PM
  #29  
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From: Okay, see?
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Originally Posted by Z4Zoro
Is that recommended or is that pretty much the max?
top speed for each gear....
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Old May 23, 2006 | 04:34 PM
  #30  
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Originally Posted by roast
top speed for each gear....
I guess there is a great possibility that the shift landed in 2nd. In 5th gear at 2000rpm shift to 2nd with a uprev would def. redline hard. Especially that close to top speed.
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Old May 23, 2006 | 04:41 PM
  #31  
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Originally Posted by Z4Zoro
I guess there is a great possibility that the shift landed in 2nd. In 5th gear at 2000rpm shift to 2nd with a uprev would def. redline hard. Especially that close to top speed.
If you did hit second instead of fourth and you just blipped the rpm's up to 4K(didn't keep your foot pressed on the throttle) then the car would have felt like you slammed on the brakes and made you lurch forward.

If you kept your foot on the throttle while engaging the clutch, then it wouldn't have been as noticeable.
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Old May 23, 2006 | 08:39 PM
  #32  
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My factory clutch got fried less than 3 weeks after I bought my new Z (less than 2000 miles brand new car). I let a friend drive it, I was with him. He was doing doughnuts(whipping cookies), something happened. Its like the throttle stuck, and it was bouncing off the rev limiter. Fkucnig stunk like clutch bad. Slipped like a btcih at high rpm. Had new nismo clutch & flywheel installed at 3000 miles… He is no longer certified to drive my car. (damn shame, he’s the type of driver that can squeeze every inch of power out of a car.)

I’ll let him drive my car on the track to see if he can beat my times.
Its important to know how much of your car is the car, and how much is you.

Last edited by nth.zed; May 23, 2006 at 08:45 PM.
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Old May 23, 2006 | 11:41 PM
  #33  
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Here is another questions. Most clutches that burn out smell really bad for days and days. If I burnt out the clutch you would still smell it right? Because there is no more bad smell. The smell went away within 15 minutes or so after it happen.
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Old May 24, 2006 | 07:58 AM
  #34  
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Originally Posted by Z4Zoro
Here is another questions. Most clutches that burn out smell really bad for days and days. If I burnt out the clutch you would still smell it right? Because there is no more bad smell. The smell went away within 15 minutes or so after it happen.
I kind of fried my clutch twice(as I was mentioning before) it didn't stink for very long though(I would say 15 - 30 minutes tops).
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Old May 24, 2006 | 07:59 AM
  #35  
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Originally Posted by nth.zed
My factory clutch got fried less than 3 weeks after I bought my new Z (less than 2000 miles brand new car). I let a friend drive it, I was with him. He was doing doughnuts(whipping cookies), something happened. Its like the throttle stuck, and it was bouncing off the rev limiter. Fkucnig stunk like clutch bad. Slipped like a btcih at high rpm. Had new nismo clutch & flywheel installed at 3000 miles… He is no longer certified to drive my car. (damn shame, he’s the type of driver that can squeeze every inch of power out of a car.)

I’ll let him drive my car on the track to see if he can beat my times.
Its important to know how much of your car is the car, and how much is you.
What was the total out the door cost for the Nismo Combo and install, when my clutch goes, that's what I plan on going with.
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Old May 24, 2006 | 08:41 AM
  #36  
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Sounds like clutch to me too...
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Old May 25, 2006 | 10:06 PM
  #37  
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Thanks for everyones advice. I brought the 350 to Nissan and they said everything was fine. Also got its first oil change
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Old Jun 19, 2006 | 08:45 AM
  #38  
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You just experienced a sticky clutch situation. Happened to me too, but mine was worse. I couldn't even get into gear after it happened.
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Old Sep 14, 2006 | 02:17 PM
  #39  
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The ol' rustangs slush box... nice job. Quote of the day.
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Old Sep 14, 2006 | 02:41 PM
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Originally Posted by Miko
Is 5th@50mph really 2K rpms? I thought it'd be a little higher...
Well anyways, I think if you're at 2K rpm and in 5th, and you want to drop it in 4th, revving to 4K rpm might be a little to high...i'd figure for each gear downshift its like somewhere between 600-700RPMs. But even if you revved it to 4k and dropped the clutch, I doubt it'd really burn that much for you to be able to smell...maybe the clutch got stuck or something..who knows.
yeah 2k and 50mph
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