I just purchased my 2007 350z nismo from a guy who claimed to have changed the flywheel and clutch and it ran fine for 8 months..

Now, the fluid fior the clutch is going somewhere, can't find where.. the clutch pedal loses pressure and within about 10 - 15 minutes it loses pressure completely, is this the mster or slave?

 

I figured it out, it's the slave it's leaking in to the bellhousing and coming out..
sorry about that!

 

Yeah if it's the OEM slave cylinder, it's probably time to get a new one or upgrade. Google "07-08 350z heavy duty slave cylinder" you find it

 

Z speed HD slave with wilwood master, never worry about it again

 

I ordered the Z Speed one this am!

thanks guys for not telling me to look something up, you guys are the best

 

As travlee said, you should do the Wilwood master too. Just clarifying since you only mentioned ordering the slave.

 

I did the slave all went great.. but it seems as though it hid another problem

Now, the transmission 1st to 2nd grinds going in to second unless i rev match perfectly, even with clutch in..

I assume synchro issue?

During my "test drive" couldn't exactly shift properly due to the clutch going to the floor so had no way of knowing.

 

Try the simple solution: change out your tranny fluid to Redline MT85. It's a synthetic lubricant that matches Nissan's viscosity requirements and enough friction engineered in to allow syncros to operate efficiently. I use it in my street and race Zs.

 

Understood and thank you for moving the thread, I see where I messed up

 

Hi guys, I am in a similar situation where my 08 Zs clutch bottom out when I try to launch the car. It wouldn't shift in any gear until the clutch pops back up.

So I am assuming its also my master slave cylinder. I have looked at the master slave cylinder delete or the upgrade to a heavy duty master slave cylinder. Which one would be better? I will also be upgrading to JWT clutch and lightweight flywheel while getting this master slave cylinder problem fixed. Can someone please help?
Should I get this:
http://www.zspeedperformance.com/ZSp...03-ZSP2006.htm

OR this:
https://www.z1motorsports.com/z1-pro...it-p-7340.html

I'm pretty confused.

 

Are you losing clutch fluid

 

I don't see any leaks anywhere.

 

Then it'll most likely be the master. Buy the upgrade kit including both in your first link

 

In your case. you'll need a new slave cylinder
tranny has to be dropped to do it, it's stupid simple..

 

The z1 kit requires adjustment every 3k miles or so per the install instructions