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Semi solid engine mounts. Who got em, what do you think about them?

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Old 02-15-2021, 06:26 PM
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David Berry
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Default Semi solid engine mounts. Who got em, what do you think about them?

Currently driving 2010 997.2 Carrera S, stock suspension.
54,000 miles. Thinking about having semi solid engine mounts
Installed for a more performance type of ride. What are your thoughts about them after installation? Any regrets?
Old 02-15-2021, 06:32 PM
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parhouse
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Yes, to much vibration in my seat and steering wheel for me. went back to stock, much better.
Old 02-15-2021, 07:58 PM
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Skwerl
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I put Wevo semi-solids on my Turbo as my first mod and love them. Relatively cheap, easy to install, and made a noticeable improvement in just the overall sensation of tightness and "race car." Added a smidge of pleasant NVH which is a good thing in a 10+ year old 911 in my opinion. Truly don't understand the people who want these cars to be cushy and soft and numb, semi-solid engine mounts are a far cry from a clackity lightweight flywheel or straight pipe exhaust or something only suited for a racetrack.

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Old 02-15-2021, 08:54 PM
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BLU997
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I fitted ERO 964 RS mounts (knock offs) stiffer and funner..

Exciting seat buzz at 1800 rpm.

Makes car feel alive..


Be sure to get the upgraded 45mm support washers. Stops the thin curved/cup washer from bending up from a "G" out.
Old 02-15-2021, 09:26 PM
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Wayne Smith
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Originally Posted by Skwerl
I put Wevo semi-solids on my Turbo as my first mod and love them. Relatively cheap, easy to install, and made a noticeable improvement in just the overall sensation of tightness and "race car." Added a smidge of pleasant NVH which is a good thing in a 10+ year old 911 in my opinion. Truly don't understand the people who want these cars to be cushy and soft and numb, semi-solid engine mounts are a far cry from a clackity lightweight flywheel or straight pipe exhaust or something only suited for a racetrack.
This. Although in my 2010 C4S with 136K miles the hardest motor and transmission mounts may have tightened things up with a net loss of NVH. I would like a bit more than I've got. Mine is close to a family sedan!!!
Old 02-15-2021, 09:29 PM
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Scalp_em
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Originally Posted by Skwerl;[url=tel:17235104
17235104[/url]]I put Wevo semi-solids on my Turbo as my first mod and love them. Relatively cheap, easy to install, and made a noticeable improvement in just the overall sensation of tightness and "race car." Added a smidge of pleasant NVH which is a good thing in a 10+ year old 911 in my opinion. Truly don't understand the people who want these cars to be cushy and soft and numb, semi-solid engine mounts are a far cry from a clackity lightweight flywheel or straight pipe exhaust or something only suited for a racetrack.
Have Wevo’s on mine and feel the same way...




Old 02-15-2021, 09:31 PM
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J.Tan
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I have the RSS engine mounts installed for a few months now. Engine noise and vibration coming into the cabin has been increased along with tighter feel in the rear of the car. I consider the increased noise and vibration to be a added bonus as this is what I'm after in a sports car.


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Old 02-15-2021, 10:10 PM
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We use them on a case by case basis for the DFI cars. Got a 6 speed? No worries. Got a PDK and no sport chrono... then the idle speed is very very low on these DFI cars and it will vibrate more. If you have software with a slightly raised idle... it goes away (about 50rpms).
Old 02-15-2021, 10:21 PM
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Chris M.
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Originally Posted by parhouse
Yes, to much vibration in my seat and steering wheel for me. went back to stock, much better.
I had the Wevo semi solids with the softest color installed for a short time. It was too loud for my liking so I went back to stock (and I had metal mounts on the metal chassis on my SC). I like the extra feel and sound on shorter back road rips but for long highway trips it is grating. When I need the exhaust quiet I just close the valves.
Old 02-16-2021, 09:23 AM
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David Berry
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It sounds like one might regret that installation ...
what about replacing with new OEM mounts?
Return car to like new?
Old 02-16-2021, 09:36 AM
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paddlefoot64
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OEM style mounts with added 3M Window Weld, are working well for me. Stiffer than stock, but no intense buzz around 3000 rpm. Semi-solids do make driving exciting, for sure.
Old 02-16-2021, 10:06 AM
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Chris M.
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Originally Posted by paddlefoot64
OEM style mounts with added 3M Window Weld, are working well for me. Stiffer than stock, but no intense buzz around 3000 rpm.
Interesting, haven’t seen anyone else do that. Must have missed that thread.

Originally Posted by David Berry
It sounds like one might regret that installation ...
what about replacing with new OEM mounts?
Return car to like new?
That’s what I did, works for me.
Old 02-16-2021, 10:21 AM
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benznotmercedes
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I have the rennline adjustable mounts with the blue inserts installed currently in my 997.1 C2. The car is a 6 speed and has coilovers and muffler bypass pipes so it rides harshly and is loud anyway. Definitely tightened up how the car feels. Hard to describe but having the engine held in more solidly makes cornering feel better.
Old 02-16-2021, 11:16 AM
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Ironman88
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Originally Posted by David Berry
It sounds like one might regret that installation ...
what about replacing with new OEM mounts?
Return car to like new?
I've considered replacing mine with OEM also. I've read however that the OEM units don't hold up very long - and comparatively soon, you end up with newer weak mounts.

May want to consider going with Function First mounts. I've read quite a few good reviews on them from fellow Rennlisters who have installed them.

http://www.function-first.com/produc...-mount-upgrade

Old 02-16-2021, 11:45 AM
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paddlefoot64
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Originally Posted by Chris M.
Interesting, haven’t seen anyone else do that. Must have missed that thread.


That’s what I did, works for me.
Here you go:
https://rennlist.com/forums/997-foru...asing-nvh.html







Last edited by paddlefoot64; 02-16-2021 at 11:46 AM.
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