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Review Z1 Motorsports Transmission mount/bushing on '13 G37S 6spd.

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Review Z1 Motorsports Transmission mount/bushing on '13 G37S 6spd.

Old 01-08-2019, 03:37 PM
  #16  
4DRZ
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Originally Posted by projectpanda13 View Post
I'll add my experience with the Z1 transmission mount here also. I'll add more as I drive the car.

At the moment, I have the car on jack stand still. I started the car up and at idle there's a subtle vibration. The vibration is more felt as I rev the engine. I thought my y-pipe was hitting the chassis or transmission cross member, but it was actually from the stiffness of the transmission mount. Hopefully, I'll have the car done this week to drive it to experience it with load and on the road.
Latez
Do you have an aftermarket exhaust? I notice most people who do notice nearly no change in NVH, but those on stock exhaust cry bloody murder about all the new NVH.
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Old 01-08-2019, 03:43 PM
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Originally Posted by 4DRZ View Post
Do you have an aftermarket exhaust? I notice most people who do notice nearly no change in NVH, but those on stock exhaust cry bloody murder about all the new NVH.
I have a Topspeed exhaust. I'm sure the vibration will be different during a drive, under loaded conditions. I have a good tolerance for noise and vibration overall. I just forgot I had installed the tranny mount and thought my y-pipe was hitting again, since it happened before. I all for responsiveness and willing to sacrifice some comfort for it.But I can also understand this might be much for some.
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Old 01-08-2019, 04:03 PM
  #18  
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Originally Posted by projectpanda13 View Post
I have a Topspeed exhaust. I'm sure the vibration will be different during a drive, under loaded conditions. I have a good tolerance for noise and vibration overall. I just forgot I had installed the tranny mount and thought my y-pipe was hitting again, since it happened before. I all for responsiveness and willing to sacrifice some comfort for it.But I can also understand this might be much for some.
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I have Stillen exhaust and the extra NVH from the transmission mount actually somehow made the exhaust sound more throaty. Bonus!
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Old 01-21-2019, 09:11 AM
  #19  
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I now have the car back on the road and was about to get a day's with of driving yesterday along with this morning's 60 miles commute.

As mentioned by 4DRZ and me, NVH increased. I'll try to rate it on a scale system;
0 = no vibration 5 = race car, solid everything, caged vibration

Cold start = 2 , due to the higher rpm, the vibrations is felt more but calms down to a 1 after the rpm settle

Idle = 1 , vibrations can be felt but not bad, very subtle to me

accelerating from idle up to 2500rpm = 2

2500-3000rpm (regular driving around parking lot and city streets)= 3

3000rpm-redline (hard acceleration) = 3.5 , at a certain point with all the noise from my exhaust, the road noise, and wind, you start to notice it

deceleration (in gear low speed) = 4 , certain rpms are worst than others, I think around 3000rpm and right at 2000rpm, shifter shakes and vibration felt through seat and up the steering wheel.

cruising (high speed 50-80 mph) = 1 , its actually fairly smooth driving on the hwy

I'll add more or revise as I drive more. I'm not sure I can feel a difference in terms of responsiveness in shifting, maybe because its been 5 weeks since I've last driven my car, or my oem transmission mount wasn't in that bad of a shape.

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Old 01-21-2019, 04:56 PM
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Originally Posted by projectpanda13 View Post
I now have the car back on the road and was about to get a day's with of driving yesterday along with this morning's 60 miles commute.

As mentioned by 4DRZ and me, NVH increased. I'll try to rate it on a scale system;
0 = no vibration 5 = race car, solid everything, caged vibration

Cold start = 2 , due to the higher rpm, the vibrations is felt more but calms down to a 1 after the rpm settle

Idle = 1 , vibrations can be felt but not bad, very subtle to me

accelerating from idle up to 2500rpm = 2

2500-3000rpm (regular driving around parking lot and city streets)= 3

3000rpm-redline (hard acceleration) = 3.5 , at a certain point with all the noise from my exhaust, the road noise, and wind, you start to notice it

deceleration (in gear low speed) = 4 , certain rpms are worst than others, I think around 3000rpm and right at 2000rpm, shifter shakes and vibration felt through seat and up the steering wheel.

cruising (high speed 50-80 mph) = 1 , its actually fairly smooth driving on the hwy

I'll add more or revise as I drive more. I'm not sure I can feel a difference in terms of responsiveness in shifting, maybe because its been 5 weeks since I've last driven my car, or my oem transmission mount wasn't in that bad of a shape.

Latez
That's interesting. I could only tell a little difference with my Stillen exhaust. Maybe the headers, intakes, and high flow cats helped cover up the NVH.

Where I noticed the most difference in shifting was either stepping on the gas or off of it and watching the shift ****. You could actually see it move forward or backward and that made it difficult to shift smoothly. The trans mount definitely helped this issue, but it was the motor mounts and rear differential brace that really tightened things up.
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Old 05-05-2019, 10:00 AM
  #21  
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I figured Iíd add my review video of the transmission mount here as thereís so much information already.

the video is focused on the shifter and Iím driving and explaining how it feels through various speeds and rpm.

hope this helps those who are considering this.
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Old 05-09-2019, 09:44 PM
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Panda- You do get a bit more vibration as our engines are not exactly "smooth" by today's standards, but I wish you would have shown a before and after of the shifter when you let off the gas and how much it moves stock compared to with the Z1 trans mount. Night and day difference to take out a lot of the slop in the shifter. With motor mounts, a shift kit, and a rear differential brace the shifting is super solid in my car.
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Old 05-09-2019, 09:57 PM
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Originally Posted by 4DRZ View Post
Panda- You do get a bit more vibration as our engines are not exactly "smooth" by today's standards, but I wish you would have shown a before and after of the shifter when you let off the gas and how much it moves stock compared to with the Z1 trans mount. Night and day difference to take out a lot of the slop in the shifter. With motor mounts, a shift kit, and a rear differential brace the shifting is super solid in my car.
Thats true, doing a before and after would have been good for comparison. I do enjoy the firm shifts also. I also plan to do motor mounts next, trying to decide between z1 or bde.

Last edited by projectpanda13; 05-09-2019 at 10:04 PM.
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Old 05-10-2019, 06:52 AM
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Originally Posted by projectpanda13 View Post
Thats true, doing a before and after would have been good for comparison. I do enjoy the firm shifts also. I also plan to do motor mounts next, trying to decide between z1 or bde.
I just had Z1 motor mounts installed yesterday. The diff brace is a more significant add, IMO, and at a fraction of the cost because installing the mounts is so labor intensive.
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Old 05-10-2019, 03:01 PM
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Originally Posted by projectpanda13 View Post
Thats true, doing a before and after would have been good for comparison. I do enjoy the firm shifts also. I also plan to do motor mounts next, trying to decide between z1 or bde.
I have the Z1 and no complaints. But the labor is not terribly cheap.

Originally Posted by Rochester View Post
I just had Z1 motor mounts installed yesterday. The diff brace is a more significant add, IMO, and at a fraction of the cost because installing the mounts is so labor intensive.
I was wondering what you would think of the motor mounts compared to the diff brace. I noticed pretty significant differences from both, but in a different way. I guess they both take out a lot of unwanted slop in the drivetrain so that means the diff brace is looking like the new champion of bang for the buck upgrades.
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