RJC brace vs. poly motor mount

[Turbo6Smackdown]

I just threw in my driver's side poly motor mount. Do I still need to run this RJC engine brace now, or is the poly motor mount enough.

 

[theCATman]

I personally would. As straight as you can keep the driveline, the better.

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[trixdout]

The poly mount is all you need. Now to complete the upgrade and stability, get the passenger side. Then you need no other engine braces. No strap or rjc brace.

 

[Turbo6Smackdown]

Got another question for you guys kind of concerning the poly motor mount route. Some say excessive vibration thru the driveline. Any experience in this? I can't remember if my super vibrating engine idle came about before or after I did this mount (about a month ago) I can watch the intercooler bounce around to about a quarter inch back and forth. Vibrations even resonate thru the scoop like a bass drum head lol. Could this be from the poly motor mount?

 

[trixdout]

When I did the poly's I did both. I see no more vibration in the scoop or intercooler. Also it would be wise to put the stock tranny rubber mount on and not use the poly mount. Keeping vibrations out of the transmission is beneficial. Plus that will help counter the stiff motor mounts. Some people are very sensitive to the vibrations so they refuse to do both mounts. When you make more power, you want assurance you won't rip the mounts apart and break something. I don't know exactly, but my logic would tell me that one mount is rubber and the other is solid. So now the vibrations aren't symmetrical causing irregularities and giving you a "violent" shake. I'd say change the other poly mount. If the "violent" shakes go away, they were absorbed into the body and frame. If they don't go away go back to the passenger rubber mount.

 

[Turbo6Smackdown]

How easy is the pass side mount. I only have experience on the DS lol.

 

[1952ray]

How easy is the pass side mount. I only have experience on the DS lol.

It's no harder then the DS. I have the RJC brace and all the HR poly stuff, motor, Trans,and cross brace. And all new bushings. It may have more vibration, not really sure. However I'm a old man so it's like a good women. These cars are suppose to be fast, so who the hell cares if your ass moves a little more. LOL