nice, which one did you go with?

I bought the GTM stage 2, also getting the hks exhaust and the gtm oil cooler. I am kind of following stormcrow's build since I was very pleased on the results that he obtained. Also there was a few people that recomended his build and said it should be safe and reliable.

Frank

Could you post a link (manufacturer, or article)?

the website is GTM Motorsports also under the forced induction section there is a thread started gtm twin turbo nismo courtasy of gtm. That is stormcrows thread about the build of that kit

I meant a link for the stage 2 twin turbo, advanced searched on
GTM Motorsports and didn't come up with it. Could you post a
link for where the stage 2 twin turbo is on the GTM site?

GTM Motorsports*::*FORCED INDUCTION*::*GTM 370Z (TURN KEY) TWIN TURBO KIT there you go. there website is really easy to navigate through enter car, year make, model, then select what you want. the turbo is under force induction.

Frank

mine does that fifth gear grind too...I will have them look at it when he's in for his oil change

Cool, it was that "stage 2" throwing me off, wasn't showin on the look up results

Update: Picked my car up last Friday from the local dealer with a brand new transmission. I haven't been able to drive it much, but in the 40 miles or so of having it I have noticed that is shifts very smoothly. Here's hoping that it stays that way :D

I'm 3,00 miles+ into the new transmission and it's still doing awesome (new
transmission at 11,485 miles)

5th Gear Grind...Just Noticing
 

...this after about 8600 miles.

First time I noticed the grind was after a quick 1-2 upshift, then quickly laying off the throttle, shifting rapidly into from 2nd to 5th - ggrrrinddd.

Now after reading this thread, I'm dreading. I have experimented a bit, and the grind only happens when shifting to 5th from ANY other gear quickly (up or down). Does not seem to matter how well I depress the clutch. It works fine if I wait a second or so for the gears to sync.

It also seems to lessen the chance of grinding if I slant the 4-5 upshift more diagonally "/", rather than "N"-shaped, if you know what I mean. I'm just disappointed that I have to wait longer to snap into 5th than any other gear now. Other combinations that skip, like 3-6, and 1-3 seem to work fine.

I have about 11k miles on my car and this has happened 3 or 4 times and could not be repeated. I was a 100% sure I shifted correctly and thought it was just one of the many quirks of this transmission. The clutch was down all the way each time and it was just in normal highway traffic. Each time that happened, I moved the shifter into neutral, released the clutch pedal, depressed it again and it shifted into 5th without the grinding as if it never happened.

Thanks for posting this, I will monitor from now on to see if the problem gets worst.

Ive got an 09 with 2600 miles on it and the 4th to 5th gear grind just started for me. It happens at slow speeds clutch fully depressed about 4-10 times before it goes away if not more its really pissing me off the car is practically brand new.

I wouldn't worry, just bring it to the dealer to get the process of
replacement started

wait, are we talking a crunching when putting the Z in gear, or transmission grinding?

It's as it's going into gear.. typically during more spirited driving, but as it gets worse, it will be almost impossible to get it into gear without hearing a grinding noise..

Hmmm.. I think I need to take mine in then.....

Expect a bit of a challenge from the dealer.. you'll most likely need to get a tech in the car and be able to duplicate the issue before they will look to resolving it, which generally means throwing a new transmission at it.

It's pretty common now for folks to walk in saying they have seen a forum thread and this is what it is.. dealers can shy away from that. But if you're cool and get someone who cares, and show them the problem, it should be a warranty item they have no problem with. Wouldn't take them long to check things out and see how common this is.

They don't go in and fix the synchros or do anything besides just replace the transmission.

i have an appointment on Monday!

Just had mine replaced same issue downshifting from 6th no Sycnrev on, also I coast a lot and the tech said to don't do that,, apperntly this is a different build with no synchros like the old days,, I have the extended warranty so I will still be coasting, though I will blip the throttle before I threw it into 5th,, for 45,000 they should be able to make a tranny that works in the real world,, I get 28mpg on the hywy driving like I do even got 31 in N.M. on the way to Nashville last year.. I hope it's a bit cooler in Savannah.. San Diego sure does spoil you....

well.... im out of luck... i just moved to Korea and my 5th gear started to grind.... looks like syncromesh is not working well... if i shift a bit slower than usual, no problem, both rev matching on or off but if i kinda throw in to 5th, it grinds like split second and gone. Thats before letting off from clutch..... Dont know what to do... since there is no M/T in korea and im pretty sure warranty is not covered....

But I guess Ill still give shot at Nissan NA, Nissan Korea, and Nissan JP.... if i have to....

Depending how much mileage you have the fix is covered .It is a Problem I had mine changed out at about 35,000 I have a 2010 white Spt Tr. They talk like they know nothing about it,,, they do..... Do you do a lot of Coasting?
My Email lennynsheri@cox.net

problem is, i believe when i move out they avoid my warranty...
not 100% sure about it tho...

I myself am getting a grind going into 3rd and 5th. I will be going to the dealer sooner or later. Very upsetting that SO many people are having this problem on here :(

Seems like transmission technology hasnt quite caught up with the increased power levels...across almost all cars.

[QUOTE=Red__Zed;1347688]Seems like transmission technology hasnt quite caught up with the increased power levels...across almost all cars.[/QUOTE]

At least you guys dont seem to be having any problems:tup:

A warranty is a warranty where you are should make no difference, if it does I would contact Nissan Corporate maybe contact them now...

At least you guys dont seem to be having any problems:tup:[/QUOTE]

haha, yes, the new mustang GT has had a lot of transmission problems, as has the Camaro, Challenger, on and on. He's right, almost all cars using the TR6060 have had issues (Except GM fixed the 'vette with CF lined synchro's YAY! but it still suffers hydraulic issues if you don't change the fluid often).

Long story short, manual transmissions right now are not the best it seems, but they are the only way to go imo

Just wanted to update here:

Car now has about 33K miles, and 5th gear grind the same. Took it my dealer, who diagnosed it as synchronizers (as expected). New transmission on the way!

I really need to get my Z looked at. I still get an occasional grind in 5th. I worry about the dealer being able to replicate the problem as it doesnt always do it. How long did it take your dealer to actually diagnose the prob?

They drove it, then called to confirm the problem the same day - brand new transmission installed three days later.

I tested the new gearbox, and the problem is now COMPLETELY gone. I can even snap from 3rd to 5th without the slightest grind. Nice service, good dealer.

--ZOM

Excellent!!!! How often was it grinding if you dont mind me asking?

It would grind whenever I'd shift into 5th from 4th if I tried too shift quickly. It would ALWAYS grind from 2nd to 5th, no matter how slowly I tried it.

Problem completely gone now with new gearbox; even 2nd to 5th works fine (it takes ever-so-slightly longer than 4 to 5, but still amazing compared to the old shift).

Baker Jackson is the dealer here. They have a "performance tech" that looked at the car and figured out the problem. Didn't even have to drive it for them and no one challenged the diagnosis. Maybe this problem is well-known now; probably appeared in enough 09's they know the score.

--ZOM

Baker is a good dealership. They do a lot of performance work so they are probably one of the least likely dealerships to give you the run around.

Ugh, I really need to get my car into the dealership. It just doesnt happen all the time and I fear the run around due to all my mods. Since I have it off the road for the winter I should just re-insure it and drop it off at the dealer and be like "you fools figure it out".

jay
 

whats the benefit or purpose of shifting from 3th straight to 5th or 2nd straight to 5th gear. I can see skipping gears on a down shift but cannot understand skipping on up shifts.

Rev high in lower gear. When rpms reach proper speed for 4th or 5th, shift. The benefit is fewer shifts, less wear on the clutch and syncros.

jay
 

It cannot be less wear on the synchronizer; your shifting out of sequence and the 370z transmission has closed gear ratios, so you're causing more stress on the synchronizers. I am a mechanic and I have seen many people damage transmissions with mis-shifts and shifting out of sequence.

^^^ absolutely correct. skipping gears is greater wear on the synchros, especially big skips like 2nd or 3rd to 6th... 5th and 6th gear are probably just single brass synchros and are not going to tolerate it long before getting hard to shift into or crunching/scratching in... especially if you try to shift it at a normal shift speed versus doing it slow and letting the synchros slow it down and the rpms fall closer to match.