Baker Tuning: 2009 370Z with GTM Stage 2 TT Turn Key

DIGItonium · 11-11-2011, 10:51 AM

Quote:

Originally Posted by JB-370z

Do you have a short shifter? My buddy just traded his B&M in for a stock. He was grinding going into 2nd and had issues getting in and out of gears. Problem fixed.

Nope. Stock shifter.

Quote:

Originally Posted by Joe@ZSpeed

Digi, I will send you a new disk if you like first to keep the downtime less, Just send me back the old one when you get it out.

Thanks Joe. Sent you e-mail to get the process started. I pray this will fix it for good so I can enjoy daily driving again. Spent way too much on this car... haha.

Ron · 11-10-2011, 01:28 PM

I have that 1st to 2nd grind at high rpm on the stock setup. Might be the synchros. Or in your case, clutch not disengaging completely when shifting.

roplusbee · 11-10-2011, 01:33 PM

It has happened to me before also, but mostly 2-3. 1-2 takes a lot of effort once the shift light starts blinking and you are trying to speed shift...........yeah. Let's just say I was embarrassed a few times

Ron · 11-10-2011, 05:55 PM

^^

Ron · 11-10-2011, 06:11 PM

JB u still with stock clutch?

weiboy718 · 11-10-2011, 07:10 PM

Can it be your clutch still in the breakin process? I'm running the SB TRZ clutch mated with their steel fly and I have no issues other than a slight screech noise during engaging 1st. No issues going into gear either and it is getting better the more I drive it

Ron · 11-11-2011, 11:02 AM

I'm sure Joe will get you squared away. For future customers, here's is a quote posted by RCZ on why this happens and what to look for on the disc so you can know if you got the correct one. Other vendors might still be selling this design, if you get the clutch from Joe then you should be good:

Quote:

Originally Posted by RCZ

...Another update on my clutch disaster:
Looks like the issue was caused by Southbend in the first place. Apparently the stock hydraulic system in our cars is absolute garbage. Its extremely weak. Some of the older 370z Southbend clutches have whats called a "marcel" which is a wave spring that gets sandwiched in between the pressure plate and disc...this was fine for the 350Z clutch (which is what Southbend uses on the 370Z) because it had a longer throw and therefore there would be enough gap for the marcel not to drag. Our cars have a shorter throw and that causes this clutch marcel to stay in contact even with the clutch fully pressed in/disengaged.

I bought my clutch from Concept Z Performance, who had NO IDEA about what I'm talking about. I tried explaining but they didnt get it. All the new 370z southbend clutches have had this marcel removed so they assume I got one of the early ones (about 10 months ago) which still had the marcel in it.

As you can imagine, my shifter is super notchy and has trouble going into first gear from a stand still. So because neither of these two companies wants to own up to their mistake, I will be pulling my transmission off for the 4th time and the car will have to be at the shop while we send southbend my clutch so they can test it out and remove the marcel. ...

Also thanks to JOE from Z Speed for helping us with the CORRECT information about this, he was the one that found the problem some 10 months ago and the reason why it hasn't happened to anyone else.

DIGItonium · 11-11-2011, 11:34 AM

Oh that's news to me. I really hope this will fix the issues and that my gearbox hasn't suffered any major damage from over 3k miles of driving and forcing the gear lever in place.

Joe@ZSpeed · 11-11-2011, 04:23 PM

Quote:

Originally Posted by DIGItonium

Oh that's news to me. I really hope this will fix the issues and that my gearbox hasn't suffered any major damage from over 3k miles of driving and forcing the gear lever in place.

That's what I tried to explain to you on the phone. When the clutch is fully engaged meaning foot off the pedal the marcel is collapsed by the pressure plate squeezing it, When you push the clutch the marcel expands as you release the clutch, too much and it will not let the clutch fully release.

DIGItonium · 11-12-2011, 12:04 AM

Quote:

Originally Posted by Joe@ZSpeed

That's what I tried to explain to you on the phone. When the clutch is fully engaged meaning foot off the pedal the marcel is collapsed by the pressure plate squeezing it, When you push the clutch the marcel expands as you release the clutch, too much and it will not let the clutch fully release.

Oh yea, I remember the marcel. I never seen it in pictures from RCZ's post, so it was news to me on that one.

DIGItonium · 05-20-2012, 04:50 PM

Finally an update to my build thread (Phase 2). Since the last update the clutch disk was replaced with a ceramic face. Then the transmission needed replacement when the gears started grinding. So with all of that out of the way everything's great. I can finally shift with ease.

The Hallman RX MBC was installed, so response is much better now. The car just feels and sounds so good right now.

In the near future, I will probably make the switch to the 3" Fast Intentions exhaust system. The last change, if possible, is the GTM R35 lower manifold. Of course, I may end up getting it tuned with these changes. That will be Phase 3.

CrownR426 · 05-20-2012, 09:35 PM

Sexy!
Get coils bro~

DIGItonium · 05-20-2012, 10:16 PM

Quote:

Originally Posted by CrownR426

Sexy!
Get coils bro~

LOL I don't think my car can get any lower. It's about 2" off the ground with the Swift springs and lip kit.

11-10-2011, 01:28 PM	#2 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 22	I have that 1st to 2nd grind at high rpm on the stock setup. Might be the synchros. Or in your case, clutch not disengaging completely when shifting. __________________ 2011 Twin Turbo PW nismo #113 - My Journal - My TT Build Thread [ GTM GTX Stg2 TT \|\| HKS EVC6 \|\| Custom CarPC \|\| F.I 3'' TDX CBE \|\| SB 6puck clutch/ZSpeed CSC \|\| BC BR Coilovers \|\| SPC camber arms \|\| Work VSS-X \|\| Custom Headlights \|\| PW:JDM CF Covers \|\| Seibon CF Engine Cover ]

11-10-2011, 01:33 PM	#3 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 23	It has happened to me before also, but mostly 2-3. 1-2 takes a lot of effort once the shift light starts blinking and you are trying to speed shift...........yeah. Let's just say I was embarrassed a few times __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

11-10-2011, 05:55 PM	#4 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 22	^^ __________________ 2011 Twin Turbo PW nismo #113 - My Journal - My TT Build Thread [ GTM GTX Stg2 TT \|\| HKS EVC6 \|\| Custom CarPC \|\| F.I 3'' TDX CBE \|\| SB 6puck clutch/ZSpeed CSC \|\| BC BR Coilovers \|\| SPC camber arms \|\| Work VSS-X \|\| Custom Headlights \|\| PW:JDM CF Covers \|\| Seibon CF Engine Cover ]

11-10-2011, 06:11 PM	#5 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 22	JB u still with stock clutch? __________________ 2011 Twin Turbo PW nismo #113 - My Journal - My TT Build Thread [ GTM GTX Stg2 TT \|\| HKS EVC6 \|\| Custom CarPC \|\| F.I 3'' TDX CBE \|\| SB 6puck clutch/ZSpeed CSC \|\| BC BR Coilovers \|\| SPC camber arms \|\| Work VSS-X \|\| Custom Headlights \|\| PW:JDM CF Covers \|\| Seibon CF Engine Cover ]

11-11-2011, 11:34 AM	#8 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	Oh that's news to me. I really hope this will fix the issues and that my gearbox hasn't suffered any major damage from over 3k miles of driving and forcing the gear lever in place. __________________

11-10-2011, 07:10 PM	#6 (permalink)
weiboy718 Track Member Join Date: May 2010 Location: Bay Area Posts: 923 Drives: Infiniti G37 Rep Power: 16	Can it be your clutch still in the breakin process? I'm running the SB TRZ clutch mated with their steel fly and I have no issues other than a slight screech noise during engaging 1st. No issues going into gear either and it is getting better the more I drive it

05-20-2012, 04:50 PM	#11 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	Finally an update to my build thread (Phase 2). Since the last update the clutch disk was replaced with a ceramic face. Then the transmission needed replacement when the gears started grinding. So with all of that out of the way everything's great. I can finally shift with ease. The Hallman RX MBC was installed, so response is much better now. The car just feels and sounds so good right now. In the near future, I will probably make the switch to the 3" Fast Intentions exhaust system. The last change, if possible, is the GTM R35 lower manifold. Of course, I may end up getting it tuned with these changes. That will be Phase 3. __________________

05-20-2012, 09:35 PM	#12 (permalink)
CrownR426 A True Z Fanatic Join Date: Nov 2008 Location: South Korea Posts: 4,676 Drives: Manual Rep Power: 848	Sexy! Get coils bro~ __________________ Love + Hardwork + Passion RIP SVTRacer

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