This sounds interesting, I haven't set my hands on an actual motor mount yet, any details on how you did this? Do they have a fill port? Assuming PU = polyurethane, any details on that? I haven't dug into motor mounts yet, but will be upgrading turbo soon, so it's on my radar it may be good to replace or upgrade at the same time.I bought stock Motor mounts and filled them with PU. No added vibrations and no issues.
I have seen people doing this, it did not add any NVH?I bought stock Motor mounts and filled them with PU. No added vibrations and no issues.
This sounds interesting, I haven't set my hands on an actual motor mount yet, any details on how you did this? Do they have a fill port? Assuming PU = polyurethane, any details on that? I haven't dug into motor mounts yet, but will be upgrading turbo soon, so it's on my radar it may be good to replace or upgrade at the same time.
I have seen people doing this, it did not add any NVH?
Wow, what a cool idea! Did you get the street or the black series? I assume black series is stiffer? I didn't see an explanation of the differences in the link.I got these and have been happy with them: https://www.powerflexusa.com/shop/product/pff5-4020-bmw-n52-n54-n55-b58-engine-mount-insert-4557
I got the black "race" version.Wow, what a cool idea! Did you get the street or the black series? I assume black series is stiffer? I didn't see an explanation of the differences in the link.
Did you notice the increase in nvh? Or any other subjective observations since installing these?
How are the IS mounts? what power level are you at?I had billet race plates but ultimately swapped to IS mounts as I didn't like that the plates lifted the engine higher.
Either are probably fine. No real difference in NVH. I've avoided PU due to temps and durability.
How much decrease in Nvh, i have my idle at 900rpm and still have some vibration with revshift engine mounts lolI got the black "race" version.
I installed after these aluminum IRP mounts, so it was a pretty drastic decrease in NVH. No comparison with OEM mounts, sorry.
This is a nice solution. It's inexpensive and easy to do - how wrong can one go? But most importantly it retains rubber which is superior in NVH than any urethane on the planet. Rubber is much harder to work with which is why every company on the planet is happy to sell urethane mounts for NHV applications lol.I have no added NVH whatsoever. At least this is my subjective review after 2000 miles.
You can find a lot of threads and videos about that. I was also inspired by others doing that.
Just google n54 engine mounts pu filled and you will find a lot of information e.g.:
This is my issue as well. I’m running the 80a revshift engine/trans combo. Although it definitely tightened things up and made the throttle response much better. I just wasn’t too fond of the added NVH. If i’m not mistaken i think the passenger engine mount is the main NVH adder.I ran the black revshift motor mounts for around 3,000km. Mostly street driving and one track day. The mounts I used were the ones that were marketed as street or oem+ on fcp.
Didn't like them even with the idle set to 1k rpm. Car felt a bit better with the revshift mounts but I'd say it was fairly minor in the grand scheme of things. What was not minor was the added vibration at idle. It was quite noticeable, and this is with a bunch of other NVH-adding mods having been done previously which probably helped mask the overall NVH from these mounts (coilovers, poly trans mounts, solid mounted rear subframe, twin disk xclutch with all the jingle, and minor things like m3 arms and monoball conversions).
I'd only recommend these mounts if NVH considerations have gone out the window. Straight pipe or hood exit, gutted interior, solid mounted diff - that sort of stuff.
Have since thrown in some stock mounts, so if anyone in Aus wants some lightly-used revshift mounts, let me know.
They're fine, around 600.How are the IS mounts? what power level are you at?
I have the black revshift motor mounts and transmission mounts for my DCT. I absolutely love them.
My rpm is set to 800. I do feel them a little at idle, but I like it and shifting at wot feels rock solid.
I’m an N55 but that shouldn’t matter. Car is around 630 wheel.
Nope. Off the top of my head, these are all the things I am running that could cause nvh:Are the engine mounts the only upgraded mount or bushings that you are running?