ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Engine, Exhaust, Drivetrain Modifications
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      01-19-2013, 05:16 AM   #177
exdos
Second Lieutenant
England
2

 
Drives: Z3 M Coupe(S54) and Z4 M Coupe
Join Date: Apr 2008
Location: UK


Posts: 221
iTrader: (0)

Quote:
Originally Posted by GuidoK View Post
I was worried about/my point being the engine jerking around in the engine bay, caused by bumps and turns. Especially the s54 is a relative heavy engine with it's cast iron block.
Just like a very stiff shock absorber can damage the chassis with large bumps wheras a softer shock would have cushend the blow (resulting is less peak force).
Having seen the photos of the OEM engine mounts and visually comparing them with the Vibra Technics mounts, it looks to me that the vertical component (Y axis) of movement in the Vibra Technics mounts remains the same as OEM, but there is lesser movement in the horizontal planes (x and z axes). Surely, this is much the same as suspension components which attempt to limit movement to the one axis, only: i.e. Rear Trailing Arm Bush limiters?

Often, is the excessive movement of suspended parts which causes the repeated flexion cycles that creates metal fatigue, and reducing that movement will lessen the risk of failure.
Appreciate 0
      01-19-2013, 05:50 AM   #178
Beedub
Brigadier General
United Kingdom
48

 
Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK


Posts: 4,039
iTrader: (0)

oh crap.... iv over Tqed mine.... back into the freezing cold garage to Re-Tq, VT ask for 45nm top and bottom :-(
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      01-19-2013, 05:53 AM   #179
Beedub
Brigadier General
United Kingdom
48

 
Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK


Posts: 4,039
iTrader: (0)

Quote:
Originally Posted by exdos View Post
Having seen the photos of the OEM engine mounts and visually comparing them with the Vibra Technics mounts, it looks to me that the vertical component (Y axis) of movement in the Vibra Technics mounts remains the same as OEM, but there is lesser movement in the horizontal planes (x and z axes). Surely, this is much the same as suspension components which attempt to limit movement to the one axis, only: i.e. Rear Trailing Arm Bush limiters?

Often, is the excessive movement of suspended parts which causes the repeated flexion cycles that creates metal fatigue, and reducing that movement will lessen the risk of failure.
pretty much what phil said on the phone in a previous convo.... the compeition mounts are no-where near solid so its a non issue ;-)
I agree however the fast road ones seem to be the complete win win, no NVH and a better control to things.....

again i wanted the comp ones for my own reasons otherwise id have just gone for the road versions....
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      01-19-2013, 08:42 AM   #180
bignosejim
Second Lieutenant
United_States
5

 
bignosejim's Avatar
 
Drives: 2007 IB M Coupe
Join Date: Oct 2011
Location: DFW


Posts: 298
iTrader: (0)

Quote:
Originally Posted by beta View Post
I tested it out by purposefully trying to shift as fast as possible 1->2, I was able to shift faster than before but when I slammed it I got some resistance and stopped testing. Because of this, I don't think it's completely solved.

As more people install their mounts and try it out we'll get a better picture (especially those with uprated transmission mounts). I'm still hoping a transmission crossmember provides a complete solution.
I didn't try shifting faster. Just noticed how much smoother it was and the range at which you can now shift. A couple of times, it made it to 2nd gear so smooth that I thought it got denied. The first time, I re-shifted. The second time, I let out the clutch....and WOW!
Appreciate 0
      01-19-2013, 09:47 AM   #181
22022
Private First Class
Canada
1

 
22022's Avatar
 
Drives: VT2-500 ZM4 roadster
Join Date: Dec 2009
Location: Vancouver


Posts: 112
iTrader: (0)

Quote:
Originally Posted by Beedub View Post
oh crap.... iv over Tqed mine.... back into the freezing cold garage to Re-Tq, VT ask for 45nm top and bottom :-(
This torque # will come in handy later thanks.
__________________
Appreciate 0
      01-19-2013, 10:01 PM   #182
zubydafa
tosser
Isle of Man
9

 
Drives: '07 Z4MC
Join Date: Jul 2011
Location: Allentown, PA


Posts: 988
iTrader: (0)

Quote:
Originally Posted by Beedub View Post
Zub what did you Tq the bolts to...... i was thinking,,,maybe we should be guided by VT on the Tq spec for the mounts as they use different fastening hardware....... i.e nylocks.
not sure...i left the car and mounts in the hands of a trusted tech.
__________________
'07 MCoupe
lots of mods
Appreciate 0
      01-19-2013, 10:11 PM   #183
zubydafa
tosser
Isle of Man
9

 
Drives: '07 Z4MC
Join Date: Jul 2011
Location: Allentown, PA


Posts: 988
iTrader: (0)

Quote:
Originally Posted by Beedub View Post
pretty much what phil said on the phone in a previous convo.... the compeition mounts are no-where near solid so its a non issue ;-)
I agree however the fast road ones seem to be the complete win win, no NVH and a better control to things.....

again i wanted the comp ones for my own reasons otherwise id have just gone for the road versions....
my reasons...

__________________
'07 MCoupe
lots of mods
Appreciate 0
      01-19-2013, 11:07 PM   #184
RobMCoupe
Captain
8

 
RobMCoupe's Avatar
 
Drives: 2007 Z4 M Coupe
Join Date: Feb 2010
Location: Bay Area


Posts: 705
iTrader: (4)

Just got it install today. I upgraded to motorsport bolts for engine mount bracket too. The driver side is PIA. Took me most of the day going though underneath the car.

Love this mod. Just like others commented here. I tested 1st>2nd after warming up the car. I didn't get any grind at 6k or 7k. You can definitely shift faster 1sr>2nd. I only drove it for about 15 miles but will update if any changes.
Appreciate 0
      01-20-2013, 06:50 AM   #185
Beedub
Brigadier General
United Kingdom
48

 
Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK


Posts: 4,039
iTrader: (0)

Quote:
Originally Posted by zubydafa View Post
my reasons...


LOL!!!! hahhahahahaa!!

how you finding these now?? any more downsides??? i cant get out as were under some serious snow!!!!!!
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      01-20-2013, 07:53 AM   #186
sabbanick
Lieutenant
5

 
Drives: 08 SBM M coupe
Join Date: Sep 2010
Location: NY


Posts: 468
iTrader: (0)

Nice to hear rave reviews. You guys running stock tranny mounts?

I would prefer to upgrade all three mounts at once, hopefully they build one for us.
Appreciate 0
      01-20-2013, 09:34 AM   #187
bignosejim
Second Lieutenant
United_States
5

 
bignosejim's Avatar
 
Drives: 2007 IB M Coupe
Join Date: Oct 2011
Location: DFW


Posts: 298
iTrader: (0)

Quote:
Originally Posted by Beedub View Post
oh crap.... iv over Tqed mine.... back into the freezing cold garage to Re-Tq, VT ask for 45nm top and bottom :-(
I torqued mine to 42nm (31ftlbs) per the TIS. This seemed about right.


Quote:
Originally Posted by RobMCoupe View Post
Just got it install today. I upgraded to motorsport bolts for engine mount bracket too. The driver side is PIA. Took me most of the day going though underneath the car.

Love this mod. Just like others commented here. I tested 1st>2nd after warming up the car. I didn't get any grind at 6k or 7k. You can definitely shift faster 1sr>2nd. I only drove it for about 15 miles but will update if any changes.
Removing the intake definitely is easier to install the Motorsports bolts. I could only get the bottom two from underneath the car when I put mine in last year. I just now got the top two in. After having the intake off about 3 different times, I can install or remove it in about 10 minutes. One thing I did notice is that it is a lot easier to install the hose clamp on cylinder #6 if you put it on wrapping the opposite way compared to the rest of them.

Glad to hear that your enjoying the new motor mounts. Even after hearing all the rave reviews on M3F, I was still shocked by the difference they made. It took me a few minutes to realize the 1st/2nd shift being easier because it just seemed so natural.

Quote:
Originally Posted by sabbanick View Post
Nice to hear rave reviews. You guys running stock tranny mounts?

I would prefer to upgrade all three mounts at once, hopefully they build one for us.
I installed RE transmission mount in the middle of December. Definitely another improvement. I wouldn't wait until the Transmission mounts arrive to put in the motor mounts (if you already have them). I think someone on M3Forum said there might another discount in effect right now through the USA reseller and that there might be another discount when they introduce the Tranny mounts (maybe for both motor and tranny also). I'm sure Beedub will keep us up to date on testing!!
Appreciate 0
      01-20-2013, 10:19 AM   #188
inTgr8r
Major General
Canada
112

 
inTgr8r's Avatar
 
Drives: 07 M Coupe
Join Date: Mar 2006
Location: Toronto


Posts: 8,069
iTrader: (7)

^ I agree about the intake removal method.
With the intake off its a piece of cake to get to the bolts.

I was reluctant to remove it at first, but its actually very straight forward.
How to posted here.... http://www.zpost.com/forums/showthread.php?t=730201
__________________
Alpinweiss '07 M Coupe •DKF Section1•RPi GT exhaust•Fabspeed Headers•Autosolutions SSK•APR splitter•Tekarbon headlights•StrongStrut STB•H&R COs + ARBs•Poly FCAB/RTAB•Volk Racing G2•Direzza ZII•Stoptech BBK•Vibra-Tech mtr mounts•
Appreciate 0
      01-20-2013, 03:41 PM   #189
RobMCoupe
Captain
8

 
RobMCoupe's Avatar
 
Drives: 2007 Z4 M Coupe
Join Date: Feb 2010
Location: Bay Area


Posts: 705
iTrader: (4)

Quote:
Originally Posted by inTgr8r
^ I agree about the intake removal method.
With the intake off its a piece of cake to get to the bolts.

I was reluctant to remove it at first, but its actually very straight forward.
How to posted here.... http://www.zpost.com/forums/showthread.php?t=730201
I wasn't prepare fir the clamps on the intake. It will definitely make easy access to the top engine mount bracket bolts. I bookmark your DIY for future. Thanks.
Appreciate 0
      01-20-2013, 04:36 PM   #190
bignosejim
Second Lieutenant
United_States
5

 
bignosejim's Avatar
 
Drives: 2007 IB M Coupe
Join Date: Oct 2011
Location: DFW


Posts: 298
iTrader: (0)

Quote:
Originally Posted by RobMCoupe View Post
I wasn't prepare fir the clamps on the intake. It will definitely make easy access to the top engine mount bracket bolts. I bookmark your DIY for future. Thanks.

Contrary to what TIS says, those intake clamps are not "one time use." At least according to the manufacturer. I've had mine off and replaced 3 different times in the last month, and my clamps are all still in good condition. I know some members think this is wrong and I'm not trying to start a debate.
Appreciate 0
      01-20-2013, 05:11 PM   #191
RobMCoupe
Captain
8

 
RobMCoupe's Avatar
 
Drives: 2007 Z4 M Coupe
Join Date: Feb 2010
Location: Bay Area


Posts: 705
iTrader: (4)

I'll get some clamps to play with. It is good preparation in case I want to replace my air box.
Appreciate 0
      01-20-2013, 08:14 PM   #192
bignosejim
Second Lieutenant
United_States
5

 
bignosejim's Avatar
 
Drives: 2007 IB M Coupe
Join Date: Oct 2011
Location: DFW


Posts: 298
iTrader: (0)

I use needle nosed pliers and a screwdriver just like in Intgr8r's thread above. I take them off just as in the linked picture. To put them back on, I found it is easier to position the needle nosed pliers like the removal pic. Then I use the screwdriver on top to push the clamp back in place.
Appreciate 0
      02-07-2013, 09:26 AM   #193
GriffBrew
Second Lieutenant
United_States
3

 
Drives: 2006 M Roadster
Join Date: Jul 2012
Location: Orlando, FL


Posts: 229
iTrader: (0)

Anybody else installed yet? I've received mine, but won't get them installed for a few more weeks.
Appreciate 0
      03-12-2013, 09:55 AM   #194
BIMMERGUY91
Captain
10

 
Drives: 2007 Sapphire Black Z4 M Coupe
Join Date: Apr 2010
Location: Huntsville, AL


Posts: 708
iTrader: (1)

I wish I hadnt missed out on this
__________________
07 Z4MC #1019/1815
2010 328i M Sport
84 318i M50 Swapped
97 M3
Appreciate 0
      03-12-2013, 10:47 AM   #195
gferil
Captain
11

 
gferil's Avatar
 
Drives: 06 Z4MC
Join Date: Dec 2010
Location: San Francisco, CA


Posts: 740
iTrader: (6)

Just got mine installed yesterday, great mod for sure. Engine seems more responsive in low gears, like beta said, more linear response when getting on and off the gas.

Turns out my mount on the right side was torn, so putting these in actually decreased the vibrations I was having. Very happy with this mod and it's only been one day. I'll update again after a track day or two and a couple months of driving.
Appreciate 0
      03-12-2013, 12:59 PM   #196
bignosejim
Second Lieutenant
United_States
5

 
bignosejim's Avatar
 
Drives: 2007 IB M Coupe
Join Date: Oct 2011
Location: DFW


Posts: 298
iTrader: (0)

Quote:
Originally Posted by BIMMERGUY91 View Post
I wish I hadnt missed out on this
After this group buy ended they changed the price of the mounts. Now they are about $300 for a set which is only $40 more than the gb price. They may also have a distributor in the USA (but I'm not sure).
Appreciate 0
      03-12-2013, 03:39 PM   #197
BIMMERGUY91
Captain
10

 
Drives: 2007 Sapphire Black Z4 M Coupe
Join Date: Apr 2010
Location: Huntsville, AL


Posts: 708
iTrader: (1)

Thanks for the info. Yeah I just spoke with Phil and found out about the price change. Im definitely gonna try and get some of these.
__________________
07 Z4MC #1019/1815
2010 328i M Sport
84 318i M50 Swapped
97 M3
Appreciate 0
      03-12-2013, 03:39 PM   #198
inTgr8r
Major General
Canada
112

 
inTgr8r's Avatar
 
Drives: 07 M Coupe
Join Date: Mar 2006
Location: Toronto


Posts: 8,069
iTrader: (7)

nice price drop.
__________________
Alpinweiss '07 M Coupe •DKF Section1•RPi GT exhaust•Fabspeed Headers•Autosolutions SSK•APR splitter•Tekarbon headlights•StrongStrut STB•H&R COs + ARBs•Poly FCAB/RTAB•Volk Racing G2•Direzza ZII•Stoptech BBK•Vibra-Tech mtr mounts•
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 05:07 PM.




zpost
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST