poly engine mounts, are they all the same?
I don't know... It's all subjective I guess. I ran Spohn solid motor mounts (pedestal and motor mount in one) along with a Prothane trans mount and didn't really notice anything bad at all.
The trans mount to stay away from is the Energy Suspension. The Prothane is great. I don't understand the aversion to it some seem to have.
The trans mount to stay away from is the Energy Suspension. The Prothane is great. I don't understand the aversion to it some seem to have.
I tried two poly tranny mounts when the car was just a few years old, and they both gave me horrible vibration. I know one of them was ES, I don't recall if I tried a Prothane, or even if they were released at that time.
Yeah that's the problem with the ES version... That metal plate they use. Some cars are just different than others too. YMMV
Thread Starter
Joined: Mar 2011
Posts: 3,699
Likes: 168
From: Wilmington, DE
i was under the impression it also had to do with flex, like no matter what you do you need a softer mount on the trans than the engine, solid mounts on engine you can run poly trans. but no poly on all 3, poly on engine you need rubber on the trans. from what i saw if the entire thing is too solid, the weak point is the bellhousing area and it can crack......basically imagine holding a sheet of plywood with one person on each end, it bends in the middle from the weight, but instead of bending, thats where the flexing now happens cause there is no supports there.
having the softer mount out back will now flex a little relieving the bell housing of the stress
having the softer mount out back will now flex a little relieving the bell housing of the stress
I used Prothane engine mounts and Spohn pedestals.. took about half a day to do the job and this is with my AC compressor already removed
its much easier if you take out the pedestals along with the mounts as a unit rather than trying to leave the pedestals in..
edit: I have poly mounts on all 3 locations and the vibration and NVH is not much greater than before... I've also had no ill effects since I swapped them over to Poly 2 years ago
its much easier if you take out the pedestals along with the mounts as a unit rather than trying to leave the pedestals in..
edit: I have poly mounts on all 3 locations and the vibration and NVH is not much greater than before... I've also had no ill effects since I swapped them over to Poly 2 years ago
