SU Motor mount issues

sunny4201

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MAZDASPEED3
I Just installed my SU Motor mount and i took the MS3 for a spin. It seems to heavily vibrate in neutral and when i am gasing it into first gear. ARe the bolts too tight?
 
I Just installed my SU Motor mount and i took the MS3 for a spin. It seems to heavily vibrate in neutral and when i am gasing it into first gear. ARe the bolts too tight?


Welcome to the world of aftermarket motor mounts.

I'm not sure what you were expecting but what you described is normal.
 
No i am complaining because people who have installed this mount said that the vibrations are very little and barely noticeable. I am getting VERYnoticeable vibes when i change from neutral to first at a stand still. The steering wheel and seat vibrates like crazy. This is only an issue when gasing it and changing to first gear.

Are the bolts too tight. I tightened them to 75 lb/ft.
 
Well I have had mine for 2 months and its finally calmed down. When I first installed it everything was vibrating when idling with the AC on. Without the AC I would not get any vibs. Now after 2 months of driving the vibrations are there but much lighter or I might just have gotten used to it.

I can tell you that I will not go back to stock since the gear shifting is way better and safer for the tranny since it does not grind into third at all no matter what I am doing.
 
Well I have had mine for 2 months and its finally calmed down. When I first installed it everything was vibrating when idling with the AC on. Without the AC I would not get any vibs. Now after 2 months of driving the vibrations are there but much lighter or I might just have gotten used to it.

I can tell you that I will not go back to stock since the gear shifting is way better and safer for the tranny since it does not grind into third at all no matter what I am doing.

you have gotten used to it. GO rive another car for a few days and you will see.
 
Perfectly normal to vibrate at idle and/or with the a/c on. But its weird that you get it gear. Everyone's tolerance is different so what feels excessive to some is easily ignored by others. Its the price you have to pay for better traction.
 
I have the SU Mount and the vibrations don't bother me a bit. I suppose some folks are really sensitive or something (dunno)

I didn't use a torque wrench so I have no idea how many ft/lbs I applied.
I just used a long ass socket wrench and tightened them as hard as I could. The bolts were on tight as hell from the factory!
 
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drive it hard and put some more miles on it. It should start settling in. After awhile you will notice the vibes will start to lessen with more mile you have on it.
 
complaining about the SU eh. try installing that TRZ, you'll think the car is falling apart!! lol. i actually took mines off today. i put a soft durometer 80. buttery! i miss it!! ill keep the trz for nights i think ima runhard long periods. its such a breeze to change! with the right tools ofcourse.
 
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