i have about 4200 to 4300 miles on my 07 and i'm starting to get some mild grind issues. sometime on the fast redline 1-2 shift there is a slight grind, and its not driver error, cause everything is done equally as to when i don't get the grind. also, sometimes when going into 6th (slow and smoothly) it won't go in all the way, u either have to put more effort into pushing it down or go back to 5th then back to 6th again.



and for all u "hr hunters" i'm game if ur local

and i know the whole "no street racing thing on this forum" so i'll be at pacific raceways on may 2nd

(pm me to set up a highway run if intrested)

 

Hey no Z is without some issue it seems lol. Dont worry.

 

Wow, thanks for the review. I have an 04 Roadster, revving the car over 5500 is not a pleasant experience with the top up(the engine sounds like it is begging for mercy). Top down all you hear is the sweet exhaust!

Glad to hear the 07 clears up all the earlier issues with a smoother tranny and engine. Sounds like it's definitely worth the upgrade!

 

 

^^^ sexy!

 

Nice redline, enjoy

 

Sorry I have to comment on this, the 06 car is not without it's faults, to blame 'user error' is, I believe bad judgement by you.

Here in the UK we have people who have had both good and bad experiences with the car, I know of one person who has had his 06 engine replaced once already, it's about to be changed again because of repeating issues with oil consumption. I have also had issues with my 06 car, infact the day it was written off it was going back to the dealer so that they could investigate issues with oil usage (over 3l of oil in 4500 miles). It had already been in for various nagging issues with the cockpit and had the stereo replaced after a mere 2 months, not bad for a car that was 5 months old.

On the UK forums you will find people who rave and revolt against the Z, it's a 50/50 thing, some people haven't had any issues with them whilst others have received absolute lemons. I class myself as having had a lemon.

Don't get me wrong, I loved my Z, spent a fortune on it and never regretted it at all but just because you don't have an issue with your car doesn't mean it's not got problems with it.

Just to prove a point, this is the car in it's glorious prime.




To the last time I saw it.



Due to that misfortune however, it's allowed me to get the new 07 car when it eventually ships in the UK, I for one am glad of the new engine because my trust and confidence in the 06 car was more than a little diminished.

 

My '06 was consuming @ 1/4 qt per 1000 miles during breakin. I did (3) oil changes during breakin, and practically check the oil everytime before I start the engine. At 2620 on the odometer, it is consuming much less than 1/4 per 1000 now.

It should be interesting when I finally come up on an HR...

Last weekend, Forged Performance in ATL installed on my '06:
JWT Pop Charger
MREV2 Plenum + 5/16 cu iso
HKS Dual Exhaust
Hotchkis Springs & Sways
Stoptech Stage II Brembo Upgrade

Next week we're doing:
Random Tech High Flow Cats
UTEC
Dyno Tune

I'm still on the fence about headers. If I do, I'll probably go with Nismo R-Spec, or Crawfords.

The difference I feel (on the butt-dyno) with these mods is pretty dramatic, now that the ecu is starting to correct the leaned out A/F back closer to factory spec. I can't wait to see the final dyno numbers after Sharif does the tune.

 

No it's not the same. Springs have different spring rates. Shocks up front are different (they dampening going up and down instead of just down). You can no longer put an aftermarket spring on the front shock by hand you will definetly need a wall mounted spring compressor. (Just had Tein S-Techs installed last week). These are definetly improvements as the ride still feel smooth as it did before I installed the springs! The drop is beautiful too!

 

Wanna race a stock HR??

Let's see some quarter mile times....

Oh yeah and don't forget to post those dyno sheets!!!

 

If people have the normal spring compressors at home they can still swap out the springs themselves.

 

^^^ true true. they are just a pain to deal with.

 

+2

 

Thanks for confirming this. I thought they were different when I test-drove the car and I knew for certain once I took the same road home from work that I have been taking for the last 10 months in the 06.

 

the suspension is ALOT softer then my 06 too. both stock suspension. Goin to be puttin on eibach pro kit on stock struts this week. Hope that goes well

 

I look forward to it.

 

hey gooey, we should do a fun run sometime, i want to see how the 07 Z does compared to the full bolt on Z's I have run against... anyway hope you are enjoying the car!

 

Wow that 07 redline is really nice. im stil in love with my 03 touring daytona blue . Plus im waitin for the 3.7 to get droped in cause it will prolyl be in 2008. Then the z will finally dust the evo and sti in its stock form i bet it will run 13flat with that new engine and good drivers wil run high 12s. The g37 does 0-60 in 4.8 so the z will prolyl be 4.6 or something like that. And we wont need to rev our cars to 5000rpms and drop it to acheive it lol dumb super launchers haha

 

Shocks Pegs...LUCKY! I want HR...

 

Glad I found your thread. Want to start off by saying that i do love my 06 ZR. It has been my favourite car to date, hands down... Although, after just leaving the dealership today after i took my car in to address some pinging issues - which, of course, they said they checked things over, and it all looked okay, and to maybe try taking it out on the highway occasionally, or to try a few tanks of 94 octane (i always use 91+, maybe some stations arent "real" 91?) - anyways.... after reading this post I feel compelled to address some of the points youve made, because reading this thread actually made me realize that I have most of these problems, some i was very aware of, some i was not!

read on.. I'll quote yours inline.

As I stated above, this is exactly why i took mine in today. I never thought to relate it to temperature though. On my way in, I was pissed off that i was having a hard time making the pinging happen, thinking, sure, the day I take it in is the day it wont do it... Well, I left the dealership thinking that after they had reset whatever they had in the computer (cant recall exactly, something about alpha's?) that it had been fixed. After 10 minutes in traffic the pinging came back. it always happens when the car is under load, in low rpms, low gears. Just sounds like bad gas, slight ping/knocky kinda sound. like the car is struggling a bit for gas. I'm going to try being more vigilant about putting in 94 octane and see if it helps. The odometer just rolled over 30k KMS, and i know already that the long block was replaced at 10k KMS, and i think part or all of the transmission as well (i took over the lease from a good friend).

I wouldnt say that mine is buzzy or like it doesnt want to be revved over 4k RPMs, but I can definitely agree that it will go to 7 if i want, but the power doesnt feel smooth the whole way through, as I have been used to with VTEC engines in the past. The power does leave right around 5500/6000, so i often dont go up to 7, because, as you said, there is no sense of power up there, so i tend to shift sooner. Shame. You said your MREV2/spacer mod helped with that? Being a new Z owner, I dont even know what that is, but im definitely googling it

Basically a carry over from my last explanation of point #2. This isnt a direct "mine does the same" explanation, but i havent been paying close attention to rev points, but i do have to say, my power bands do feel... misplaced? like I have to hit 2-3k rpms before power shows up, then around 6 it starts to taper off. Ive often wondered if i was driving it wrong, or if something was tuned incorrectly in the computer, because of how power is distibuted. Its not night and day, but enough to occasionally think... "hmmmm, seems off..."

I have been thinking about this a lot lately. Again, it seems that sometimes, engagement is fine, nice and smooth, and i have a distinct 'hey, maybe my seat is adjusted just right, or these shoes are making a big difference in feeling the clutch!!" - after reading your post I'm starting to think its not me. I often find that i lurch a tiny bit unless i give it a ton of revs, or i slip the clutch a bit in order to not get a lurchy start from a stop.. Sometimes it engages great, alot of the time it feels like it starts engaging smooth, then right at the last 15-20% it grabs hard or slips (depending on how i react, I'm guessing - either i give it gas and it slips, or i dont and it lurches). This frustrates me to no end.[/QUOTE]

I cant say i've noticed this, but i havent done enough aggressive braking to notice. I'll pay attention a bit more.

Not having been in this cornering situation often, I can easily 'picture' the car handling how you describe, based on knowing how the car feels in other situations. Maybe its an 06 thing?

I have something similar happen, i dunno if i'd describe it as a crunch, as much as a 'clunk'. It doesnt feel like im grinding anything, but it definitely does not feel SMOOTH. It also seems to be an issue that comes and goes.

ALWAYS ALWAYS ALWAYS!!!!!!!!! Basically it seems like this is directly related to what RPM im at when i push the clutch in. If i push it in way way early and allow myself to "coast" while braking, its fine. If I push the clutch in when the engine is basically being given all its power from simply having the clutch released, i get a very significant, very "CLUNK"y drivetrain shudder. I assumed this was somewhat normal, even if not desired. Other people dont experience this??

Anyhow - Long post, but thank you for posting yours originally! I'm going to pay some more attention now and see if these things are my imagination or what, or if we happen to have the exact same set of problems.

Again, 2006 350Z Roadster w/ RevUp, 30,000kms (now), long block replaced at 10k KMS, I think also transmission (due to severe clunking when shifting gears, if i recall correctly) - I just took it in to dealership today to get maintenance done which included basic crap - oil change, diagnostic, oil filter,etc. They didnt do air filter, but i looked at it and it looks clean. Dunno what else I could tell you.....

Can anyone else weigh in on the subject?