Stiffness of Poly Motor Mounts
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Teching In
Joined: May 2003
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Stiffness of Poly Motor Mounts Anyone have any idea how the different poly motor mounts stack up on stiffness. I just know of Spohn and Prothane. I want to go to poly, but I'd kind of like to get the softest poly out there. Thanks.
for the most part, poly is poly....they will be the same (or at least the difference will be negligible)
I run Prothane mounts, but would buy any sponsors mounts if I had to do it again. I love the mounts! Just not putting them in!
Erik
I run Prothane mounts, but would buy any sponsors mounts if I had to do it again. I love the mounts! Just not putting them in!
Erik
True...I can't even tell the difference while driving, no vibrations or anything like that. Glad I put them in though, they weren't that bad to do with the headers out of the way.
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From: North Bay, Ontario
i have prothane mounts and they made a big difference with my exhaust banging problem, i got a couple small vibrations at idle when cold, but onc eit warms up they go away for some reason. I would def. reccomend these, although they are a major bitch to put in and i would never do it again, they were worth the time and effort. BTW, i installed mine with the headers on, only thing i removed was a small heat shield and the starter.Good Luck Man!
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I run prothane very big help my engine don't shake due to my cam now.
EDIT: I have m6 with stock tranny mount. I really like how it firmed up , I would highyl suggest using these mounts, much better than stockers!
EDIT: I have m6 with stock tranny mount. I really like how it firmed up , I would highyl suggest using these mounts, much better than stockers!
Last edited by coolformula; Oct 18, 2007 at 01:17 AM.
Please don't say poly is poly. If you mean the durometer of the Spohn and Prothane LS1 motor mounts are the same, then say that. Poly can be super soft to rock hard depending on how the materials are mixed and companies that make them will determine how hard or soft each individual part needs to be.
As far as the motor mounts go, I recently put in the Prothane mounts and there were no adverse effects I can notice. I like that my shifter no longer torques over under load.
My engine was out, so installation was real easy, but I did take some pics of taking the clamshells apart and reassembling them with the new inserts if you need help in that area.
As far as the motor mounts go, I recently put in the Prothane mounts and there were no adverse effects I can notice. I like that my shifter no longer torques over under load.
My engine was out, so installation was real easy, but I did take some pics of taking the clamshells apart and reassembling them with the new inserts if you need help in that area.
Thread Starter
Teching In
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Thanks Jason, maybe no one knows, but I was basically asking if anyone knew the durometer of each poly mount. If you have those pictures, I wouldn't mind looking at them, always willing to accept offered help.
Sounds like prothanes are ok. Does anyone run Spohn poly's? I haven't heard much about them. Thanks.
Also, you guys who say you have poly motor mounts and love them, would you mind telling us what transmission mount you are using and whether it's A4 or M6. Seems that peoples issues with vibration vary according to these factors.
Sounds like prothanes are ok. Does anyone run Spohn poly's? I haven't heard much about them. Thanks.
Also, you guys who say you have poly motor mounts and love them, would you mind telling us what transmission mount you are using and whether it's A4 or M6. Seems that peoples issues with vibration vary according to these factors.
Last edited by SS BadaSS; Oct 18, 2007 at 12:43 AM.
I'm using spohn solid mounts and a poly transmission mount. Only bad vibrations I get are on cold start-up. Not everyone's cup of tea but I find it pretty tame contrary to popular belief. Side not-my QTP headers that had always rubbed on the steering shaft (there was a whole batch of these I'm told) now have great clearance.
I also swapped to the ES torque arm bushing and have had no issues. It felt very soft and spongy in comparison to the trans and motor mounts, but since it is held so tightly that should not be a problem. It really needs the softness as the TA twists it under cornering. Hopefully they will all last a nice long time.
I'm using spohn solid mounts and a poly transmission mount. Only bad vibrations I get are on cold start-up. Not everyone's cup of tea but I find it pretty tame contrary to popular belief. Side not-my QTP headers that had always rubbed on the steering shaft (there was a whole batch of these I'm told) now have great clearance.
No kidding..my QTP driver side header sat on the shaft and had a slight groove worn into my steering shaft. It wasn't that big a deal until I put the TRex in and then it was banging into it. Spohn solid mounts went in and now I have a 1/4" between the header and steering shaft. As a bonus they look cool, stopped the air lid tabs from popping out, and allowed me to solid mount my exhaust
