https://tech.mirage-performance.com/enginemounts.html

I was watching tv the other morning and seen them doing this on project Rolling Thunder , so I looked into our minis bushings and they look like they could benefit from this mod. I am going to do this once my project "rice" is done on my r53..
I do have a question about the big engine mount under the hood passengers side, could I buy the 2part polly liquid mix and just fill up that mount from the top and bottom to make it stiffer too ? Or will that be bad ? I seen on other vehicles with similar kind of mounts that's what they did ..
feel free to give your thoughts and opinions on this mod. I would REALLY like to hear from someone who has done this mod on their r53 or what was your thoughts after switching to polly mounts ? I dont care about engine and cabin noise as my exhaust and intake are already stupid loud and the vibrations too I am not bothered by as I'm used to owning built v8s..

 

Windshield sealer comes in a caulk tube, and works pretty well for filling engine mounts. This is a decent compromise for filling the voids in motor mounts and gaining a performance benefit without going to a full race bushings and having to deal with vibrations that come from those.

 

Yes, the caulk tube kind and theres also a much thinner kind which is the mix, the mix would allow it to fill the passenger's side big mount possibly if it can be filled. I would use the caulk kind on the other bushing as it's much thicker and can be squeezed and pressed into the spaces in the bushings and then not run out or have to be sealed off ( which can simply be done with tinfoil)