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Old 03-25-2022, 01:58 AM   #1
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Transmission mounts

So, I have started my annual panic work just before the season starts..

Changed the front engine mount to OEM 987, now looking for what transmission mounts I should go for. I want a firmer ride and shifting and of course not to much NVH.

I have searched but not found a definite answer on what path to choose.

What do you guys think about RSS Tarmac Series Performance Transmission Mounts vs Wevo Semi-Solid?
I find that the Wevo-mounts looks kind of cheap compared to the RSS but I have no clue wether that´s relevant.

A little pic from the house of horror..





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Old 03-25-2022, 05:52 AM   #2
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I am running the Wevo SS transmission mounts on my 986 Boxster with the OEM front engine mount (unsure what version the front is, it may be the newer improved 987 style but I don't know)

At idle, there is a little bit of vibration coming through the car, like a mild back massager, but it goes away anytime I am above idle. I have had them on for several years and I can't remember if I was having a problem with shifting under load (example, going down to third heading into T1 at Daytona while braking with some lateral load) or if it was just one of those type of "since I had everything apart let's upgrade to future proof it" type of things I seem to recall that it did firm up the shifting, with only a little bit of extra NVM.

I got a 2nd set of my Cayman as well, I like them
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Old 03-25-2022, 07:27 AM   #3
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Great info Steved0x!!!

I´ll be placing an order with Tarett soon so I just might add the Wevo:s :-)
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Old 03-25-2022, 08:19 AM   #4
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Btw, I believe someone had converted the old OEM-mounts.. Could that be a worth looking into?
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Old 03-26-2022, 06:34 AM   #5
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I don't have them, but they seem like a good balance of performance and nvh.

https://www.prgproducts.com/product-page/porsche-boxster-caman-986-987-transmission-mount
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Old 03-26-2022, 05:28 PM   #6
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Buy the Wevo mounts. Almost every Spec Boxster I have seen uses them without any issues of note.

Can't comment on NVH. Always shocked when I drive the Spec without a helmet and hear ...

RSS make great stuff but the price of their mounts is a little absurd.
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Old 03-28-2022, 11:34 PM   #7
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I also use the Wevo SS and echo the comments as steved0x. No regrets on the purchase.

Similar to MaxD, RSS makes nice stuff, but for a dual street/track purpose car, it was a matter of diminishing returns given the cost.
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Old 04-10-2022, 12:57 PM   #8
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I have modified original mounts with poly.
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Old 04-22-2022, 11:16 PM   #9
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I am using 964 RS engine mounts for the Boxster tranny mounts
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Old 04-23-2022, 01:20 PM   #10
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I am using 964 RS engine mounts for the Boxster tranny mounts
That's really interesting, how was install and what are your impressions of the feel?

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Old 04-24-2022, 03:55 AM   #11
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I did the same with the rs mounts. Minimal nvh increase, install is the same as any other tranny mount as its all the same thing. Only thing to be careful of is getting all the cupped washers and stuff as they are all separate parts. For part numbers look up any thread on rs engine mounts, should give you what you need
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Old 05-01-2022, 07:32 PM   #12
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That's really interesting, how was install and what are your impressions of the feel?
Quad has taken care of the 964 info. I do remember the sourcing of the washers was a bit pricey. The install was pretty straightforward.

As far as stiffness they felt more solid compared to the stock Boxster mounts but to be fully transparent I couldn't really do a real comparison as I did the install over the winter when I had my engine/tranny out to to solenoid pads, chain tensioners, IMS, deep sump/baffle, LSD, etc and didn't drive it for about nine months. It feels solid on the track now is all I can say.
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Old 05-15-2022, 06:22 AM   #13
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Originally Posted by Robert986 View Post
So, I have started my annual panic work just before the season starts..

Changed the front engine mount to OEM 987, now looking for what transmission mounts I should go for. I want a firmer ride and shifting and of course not to much NVH.

I have searched but not found a definite answer on what path to choose.

What do you guys think about RSS Tarmac Series Performance Transmission Mounts vs Wevo Semi-Solid?
I find that the Wevo-mounts looks kind of cheap compared to the RSS but I have no clue wether that´s relevant.

A little pic from the house of horror..

I have also changed the front engine mount, still some vibrations and difficulties to change gears. Did you change the transmission mounts? If you changed then where did you end up and where did you buy?
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Old 03-05-2023, 07:32 AM   #14
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I have also changed the front engine mount, still some vibrations and difficulties to change gears. Did you change the transmission mounts? If you changed then where did you end up and where did you buy?
Nope, I got stuck in putting on Öhlins R/T, rear adjustable toe links and solid bushings all around plus new wheel bearings all around, "Pedro bar etc". Time flies..

So this spring I plan to:

-Put on new brake rotors and upgrade the pads to something more track worthy
-Put on some side skirts (996.2 Gt3 look) This one is NOT performance oriented, pure looks..
-Put in a lithium battery, I ordered one from Lithium Next.
-Hopefully get on with changing transmission mounts, still haven't choosen what kind.
-Looking into strut braces, will this be the year?

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