Yes it does work on upshifts per the owners manual. It takes some adaptation to it's unique characteristics to get smooth but once you do it feels perfectly normal. (to me anyway!)

X2.. I believe what you are talking about is what i call clutch slap... not sure if that term is correct. But i am pretty sure that the noise you are talking about is the clutch. Anyone else have any ideas?

thats the new clutch youre hearing.
when i first got my Z i think 2 weeks down the line before i got fired, i was kinda pissed off for some reason i dont remember (maybe the idea that i was GOING to be fired) and i remember coming home and popping the clutch in reverse and parking into my garage all within less than 15 seconds. which is ridiculous because normal conditions take 2+ minutes for me.

within this time frame, with a bit of anger and rage remaining from work related crap, i distinctly remember hearing that 'clanging' sound from within the chassis below my seat, and i was thinking sh!*, then i realized, my 2000 civic didnt do that, then i remembered my salesperson from nissan calling me nonstop for 2 weeks saying the trade in went foul because the clutch on the civic was that bad.

my point is, during the whole time i had my civic and rough driving, never ever did i hear 'clanging'. then again i never had a new vehicle. this civic was back from 2000.

so to sum it up, go easy , be gentle , she will reward you ^__^ haha

I don't think that really answers the question. I'm easy on my clutch, have 8k on my car, and it still does it. Not when parking, more of like when you are in first, get it to about 2-3k rpms, then press in your clutch and it makes like a slapping noise. Anyone have any input? I can't remember my g35 doing this.

Mine does it. Usually happens if I have the transmission under load when I push the clutch.

Great Conclusion
 

Today I took the 'Z' back into the dealer and he replaced all of the parts that they said they would. The slave is totally different than the one that came OEM on the car. I suspect that the early 09's may have had a problem that was now corrected with the new design. I'm guessing, that when questioned, the early cars are probably being quietly replaced with the updated design. I know that now the clutch engagement is like it should be and without shudder...................!! I am a happy camper now. :tup:
:worship:

Can you provide us the part number used for the replacement? My clutch action has been getting more erratic like my 350Z. The cooler weather is making it worse. Plus, it feels like it needs bleeding.

Wow, I wonder if they will replace it for me that easy, I've been to 2 dealerships early on and they both said it was normal. :-( I've got 12K on the car now, and just gave up on the dealers. That sound is really embarassing, most everyone that drives in my car comments on it and it really takes the enjoyment out of driving it.

So, are you saying that the shudder/rattle is completely gone? or is it just less noticeable?

numbers? & shudder<G>
 

Sorry, I have no idea what the numbers are.. I just saw the parts and the difference between them. My guess is the numbers will be the same, probably just an engineering change number for that part number.
:tiphat:


You need to try another dealer. Keep on them since it is not normal.

Yes the shudder is gone when you start off from a dead stop and the shift into 2nd is clean also. The clutch pedal no longer has that over center feeling that it had with the OEM slave in place.
:tiphat:

yah, im use to it now... :tup: i found to just give it more umph immediately after engagement to fully load the drivetrain. can't wait to motor my Z tomorrow.. :)

There should be part numbers with the paperwork they gave you after they completed the job.

Numbers
 

HB10AA RPL Clutch Cover/Disc assy - 1087WPN07
1) 30205 - Cover assy
1) 306A1 - Cyl Assy
:tiphat:

Oh thanks! I was out of town for a couple of days. When I took the Z out this morning I was caught off guard with the abrupt clutch engagement while backing out and killed the engine. The entire drive was rough... it was as if engagement was barely off the floor. There was almost 2 inches of "play" before disengaging the clutch. I wonder if this is the reason why I've been scratching gears more often than usual. Plus, I've experienced shuddering you guys described since day 1.

Less than 6k miles.

Thanks for the numbers :tup: Does anyone know if there is a TSB up on this?
Since I've been to 2 different dealers in the past, I'd like to go in a little more prepared this time.

"The stock flywheel is a complex dual-mass piece with separate front and back halves separated by springs. Supposedly this can't be resurfaced, so if you're already replacing a clutch (shame on you if you burned it up this fast) a light flywheel may actually save you money over replacing the stock dual-mass."
http://www.350z-tech.com/w/images/th...n_350z_011.jpg
with that said the chatter is from the flywheel loading and unloading.

as far as the engagement... get used to it USUALLY the higher the tq rating on a clutch the quicker and higher its engagement is. and we all know the vq37 is not a slacker in that department