Front motor mount + side motor mounts = less vibration?
i said the sides are in for 20 miles. This is the second time i've answered this. LOL
I never said I wouldn't. you people just dont read these days. but its ok. i dont read either.
i will report back after 500 miles. I am currently at 200miles. NO CHANGES. VIBRATES like a BIATCH.
My right headlight shakes so much it might as well fall off.
Last edited by johnnnyjeans; Jan 2, 2013 at 02:46 PM.
Joined: Mar 2003
Posts: 394
Likes: 7
From: Used to be in Nor Cal, now working in Seoul
Bringing back the old thread:
Had Powerflex front (road use - yellow) engine mount bushing for a while - increased vibration over stock but definitely less engine movement.
Ordered two Powerflex side (also road use - yellow) mount bushings and installed only one at the passenger side (near cam cover) - no more noticeable vibration, but definitely can hear more drivetrain sound (I wouldn't call it noise because it is not bad to hear them more).
I couldn't lower the tranny side (driver side) enough to take out the stock mount, and the bushing looked clean, so I left it stock, but I think I made a good choice.
Passenger side (cam side) bushing already had multiple cracks on the surface (03 EVO, 43k miles, ~5 track days per year), so I guess it gets more stress than the driver side.
Also it makes sense that mounts that are closer to driver side make "driver" feel more vibration and noise, so if you prefer minimal increase in NVH, leave rear / driver side (tranny) mount stock.
Of course, you will have less "solid" feel in return, but it would be a good compromise for DD cars.
I am thinking installing new stock mounts on those two old mounts when I do clutch install later instead of using aftermarket ones.
Had Powerflex front (road use - yellow) engine mount bushing for a while - increased vibration over stock but definitely less engine movement.
Ordered two Powerflex side (also road use - yellow) mount bushings and installed only one at the passenger side (near cam cover) - no more noticeable vibration, but definitely can hear more drivetrain sound (I wouldn't call it noise because it is not bad to hear them more).
I couldn't lower the tranny side (driver side) enough to take out the stock mount, and the bushing looked clean, so I left it stock, but I think I made a good choice.
Passenger side (cam side) bushing already had multiple cracks on the surface (03 EVO, 43k miles, ~5 track days per year), so I guess it gets more stress than the driver side.
Also it makes sense that mounts that are closer to driver side make "driver" feel more vibration and noise, so if you prefer minimal increase in NVH, leave rear / driver side (tranny) mount stock.
Of course, you will have less "solid" feel in return, but it would be a good compromise for DD cars.
I am thinking installing new stock mounts on those two old mounts when I do clutch install later instead of using aftermarket ones.
Newbie
Joined: Mar 2007
Posts: 15
Likes: 0
From: Corpus Christi
Replaced the passenger and transmission side this past weekend. The AMS mounts that I had in before were pretty bad (in the car for about 6-7 years). Went with Torque Solutions and it did reduce the vibration.
Joined: Mar 2003
Posts: 394
Likes: 7
From: Used to be in Nor Cal, now working in Seoul
Passenger side one is easy to check, but driver side requires removal of battery cover or inspection mirror might work.
Since your EVO is so much higher power, might be a good idea to check if still stock.
Powerflex yellow is 70A, and AMS black should be the same, and TS is 75A, which all should be acceptable for DD.
Since your EVO is so much higher power, might be a good idea to check if still stock.
Powerflex yellow is 70A, and AMS black should be the same, and TS is 75A, which all should be acceptable for DD.
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