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Discussion Starter · #1 ·
Hi all,
As we know that GT models have a tendency of wheel hopping, people try solid motor mount and lower the car to help with that.
Just one quick question for members with solid mount.
Is the vibration unbearable for daily driver?
I have a 1h 40 minutes round trip daily so I just want to know before pulling the trigger on solid mounts.
Thanks.
 

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just for fun, I don't own a gt. But on my 1985 300zx I have solid mounts all around and though its not a daily driver, the vibrations off it are negligible and didn't really change the cabin feel much at all. Different car, different time, but it does have a v6.
 

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2009 GS Turbo. 2007 GT
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Guys go poly not solid. Generally they also only do the front and rear mounts. It's terrible at first, then they get worked in and it's fine. I didn't notice that they were even there between my GT with them (broken in) and totally stock vibration wise.

Going totally solid concerns me as then the block and trans become stressed chassis members, and would be a risk for cracking.
 

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Discussion Starter · #4 ·
Cool.. thanks guys..
Im glad it’s not that bad..
I’m thinking about being a little conservative by filling the mount with window flashing first and see how it feels..
 

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Basically Stock
2009 GS Turbo. 2007 GT
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I use urethane to make my bushings for racing, and it's entirely down to how much you use. If you drill out the rubber and inject it like I do, it can easily become stiffer than the poly bushings on the market for these.

I've also found it has the same break in as the normal press in mounts, which makes sense, as it's very similar material.
 

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Discussion Starter · #6 ·
I was thinking about filling the open gaps from the current OEM with polyethylene to see if it makes any differences first..then I can buy the poly mount later..
I just want to have a few for it on the long commute..
 

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Discussion Starter · #7 ·
Do you know what this motor mount does?
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Does it prevent the motor rocking back and forth?
Thanks.
 

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2009 GS Turbo. 2007 GT
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Nope, the ones under the motor stop the rolling forward/back under throttle as their main purpose.

That one holds it in place during cornering primarily. It's the least important mount to change to lower torque steer, unless it's broken. The trans mount makes a huge difference, but adds a TON of vibration. You'll never not feel like you're in a racecar with the side mounts done in poly.
 

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Discussion Starter · #9 ·
So these are the ones that stop the motor rolling?
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They are the front and rear bottom mount...
My engine has excessive movement even at the initial start.
I had some one in driver seat and start the car then I noticed the engine jerk back then forth.
I guess time to replace them..
Thanks James.
 

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Discussion Starter · #12 ·
Cool.. thanks guys..
I'll try that set up to see how it goes..
Poly for front mount and OEM rubber for rear.
 
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