DIY and Review - Function First Transmission Mount Insert for 997.2
#31
#32
My advice is hold off on the clutch job until after you installed the inserts. If you can't stand the NVH after the install, then the clutch job will give you an opportunity to change the mount when the transmission is off the car. I made that mistake of not replacing the mount when they did the clutch because I thought the inserts will take care of my problem without knowing the NVH is unbearable to me even with the orange inserts. Hindsight is always 20/20 :<(
#33
I installed the Yellow FF transmission mounts at 33,000 miles and the URO RS engine mounts from RennPart in my 2011 Carrera GTS PDK. They had produced negligible NVH. 20,000 miles later, I would do the sam thing again in a minute.
#34
I've heard the inserts on PDK is quite bearable, compared wth manual as on my 997.2 is quite loud.
#35
I installed the orange mounts on my 997.2, but like HenryPcar said the NVH was too much for him and for me too. I installed them around Christmas and removed them at the end of February. Two months of use to see if I could get used to it, but it was too much for me. Not tons of vibration, but more than I wanted. I also am on semi-solid engine mounts too so that plays into the equation. My engine mount was in almost perfect condition too. Does anyone want to buy my orange mounts?
#36
I installed the orange mounts on my 997.2, but like HenryPcar said the NVH was too much for him and for me too. I installed them around Christmas and removed them at the end of February. Two months of use to see if I could get used to it, but it was too much for me. Not tons of vibration, but more than I wanted. I also am on semi-solid engine mounts too so that plays into the equation. My engine mount was in almost perfect condition too. Does anyone want to buy my orange mounts?
4 years later and I'm still loving this upgrade - shifting is still super sharp, and the only time I get any vibration is the same as originally reported - i.e. if idling in Park or Neutral (which is irrelevant to me )
At what points were you getting the extra NVH?
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#37
@doclouie that is interesting. I wonder if it is because of the combination of the semi solid engine mounts + the transmission mounts in your case, or if it is just that the transmission mounts create more NVH on manual cars? I'll be changing my engine mounts soon also.
4 years later and I'm still loving this upgrade - shifting is still super sharp, and the only time I get any vibration is the same as originally reported - i.e. if idling in Park or Neutral (which is irrelevant to me )
At what points were you getting the extra NVH?
4 years later and I'm still loving this upgrade - shifting is still super sharp, and the only time I get any vibration is the same as originally reported - i.e. if idling in Park or Neutral (which is irrelevant to me )
At what points were you getting the extra NVH?
#38
Just installed the orange (softest) ones last night. Won't have any impressions for a while as I'm slowly doing a bunch of work at the same time. The side plates on my original mounts were completely deteriorated and mostly gone. I have RSS semi solid engine mounts, but don't worry too much about some additional noise if it comes with a performance benefit, which is why I've eliminated all rubber from my suspension, have a Fabspeed exhaust, monoball top mounts, etc. My 928 has much more solid transmission mounts and they're a lot - these should be fine as this ain't a GT car.
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delirium45 (06-29-2020)
#39
I installed the softer inserts a few months ago on my PDK car with stock engine mounts. I do notice slightly crisper shifting and have not noticed any additional NVH. I suspect this mod, combined with solid or semi-solid engine mounts would add significant NVH--or at least more than I am willing to bear.
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Emc2design (08-01-2020)
#40
Just installed the orange (softest) ones last night. Won't have any impressions for a while as I'm slowly doing a bunch of work at the same time. The side plates on my original mounts were completely deteriorated and mostly gone. I have RSS semi solid engine mounts, but don't worry too much about some additional noise if it comes with a performance benefit, which is why I've eliminated all rubber from my suspension, have a Fabspeed exhaust, monoball top mounts, etc. My 928 has much more solid transmission mounts and they're a lot - these should be fine as this ain't a GT car.
I intend to do motor mounts also sometime in July. Considering the FF versions for this job also.
#41
I installed the softer inserts a few months ago on my PDK car with stock engine mounts. I do notice slightly crisper shifting and have not noticed any additional NVH. I suspect this mod, combined with solid or semi-solid engine mounts would add significant NVH--or at least more than I am willing to bear.
#42
Anyone have any more updates on the soft/orange FF inserts? Not that is matters as I'm taking my car in today to have them installed along with changing the tranny fluid to Mobil PTX. FWIW, I have a 997.1 w/55k miles on it and the FF engine mounts already installed. So far, very little NVH from the engine mounts and it should decrease after more miles are put on the car I've read from numerous sources.
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frybear (11-23-2021)
#45
Anyone have any more updates on the soft/orange FF inserts? Not that is matters as I'm taking my car in today to have them installed along with changing the tranny fluid to Mobil PTX. FWIW, I have a 997.1 w/55k miles on it and the FF engine mounts already installed. So far, very little NVH from the engine mounts and it should decrease after more miles are put on the car I've read from numerous sources.
Those are my pics in post #38
Last edited by Petza914; 11-23-2021 at 11:27 AM.