Ad: VTT - New Product Release - Billet Motor Mount Inserts
- Thread starter Chris@VargasTurboTech
- Start date
Well, the S55 series will fit at least the one mount. We're not sure about the other side since it isn't cross-referenced to anything and we haven't checked that one specifically.
Chris
Thanks for your reply! I guess keep us m2 owners posted when you figure that out so we can grab a set!
Just curious why you'd run driver side only? I took measurements on stock motor mounts on my car around 30k miles (most of those at stock HP) and the passenger side mount was collapsed - total junk. The driver side motor mount looked pretty good. The problem child is on the compression side of the motor. And if you are running the $10,000,000 iS mount then I'd be concerned about not having to spend $10,000,000 each time that mount takes a crap. In the N54 case, whether you know it or not (i.e. take your factory mounts out and measure them), the passenger-side mount is getting destroyed. I suspect it is a fatigue failure caused by rate of change and/or extent of compression and extension. Seems like these would limit those factors.
I'm guessing the inserts may limit compression and expansion material abuse and prolong the life of the motor mounts. If you are running stock Corteco mounts, they are cheap and who cares (that is, buy them primarily for performance reasons). But if you are running the cubic zirconia iS mounts, getting longevity out of your depreciating asset might be a bigger reason for considering this setup. Just a thought.
I'm on Rev 1 of the Revshift 80a - love them with RE rubber trans mounts, but I'm on a manual transmission. If and when those fail, I'll buy the VTT inserts and some Corteco mounts, most likely, and call it a day.
Filippo
I'm guessing the inserts may limit compression and expansion material abuse and prolong the life of the motor mounts. If you are running stock Corteco mounts, they are cheap and who cares (that is, buy them primarily for performance reasons). But if you are running the cubic zirconia iS mounts, getting longevity out of your depreciating asset might be a bigger reason for considering this setup. Just a thought.
I'm on Rev 1 of the Revshift 80a - love them with RE rubber trans mounts, but I'm on a manual transmission. If and when those fail, I'll buy the VTT inserts and some Corteco mounts, most likely, and call it a day.
Filippo
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blahahahahaha... Cubic Zirconia iS mounts.
Well, I've been trying to get some information on this earlier in the thread. I thought I had mentioned that I think the passenger is worse off due to the amount of weight it is holding, but "ruining" the comfort of the extremely expensive 'iS mount would not be ideal (since it seems like the insert is a permanent alteration?).
I am not made of money and don't want to bring back the horrible NVH I've experienced by "ruining" an 'iS mount.
[EDIT] Not trying to say that these inserts ruin any mounts... just trying to prevent making the stock feel of 'iS mount feel anywhere like the poly mounts...
Nor do I want to waste my time ($) having to do this again relatively quickly. I'm sure someone who is paying for this work will eventually read this thread and want some opinions on what the perceived best solution is vs doing this 2-3 times to get it right (whatever that "right" is to that person).
As I gain power, if I'm F'ing up a mount every 5-6k miles, I'm looking for a better solution than stock from the get-go. It's not like bleeding your brakes, I don't want to have to do this again for a while..
@Chris@VargasTurboTech would you agree the inserts can be removed and even reinstalled again if someone got a new mount?
ANSWER: As long as you don't use a jackhammer or a bulldozer to remove them, should be ok for re-use.
Chris
Kick ass!
I am about to install these with the IS-mounts and the OEM mount... Have had the car in pieces since December for rear end work... front end work is next! Will post updates when I can.
Whew! Finally got engine mounts changed.
I got the VTT inserts installed on the Cortego (OE mount) for driver side.
Unfortunately I wasn't able to get the 'iS mount to use the inserts. While the driver side was easy to push on and then hammer on... the 'iS mount did not want to fit at _all_.... Being so expensive I didn't wail on it, but took measurements.
I can't wait to drive it tomorrow!
I got the VTT inserts installed on the Cortego (OE mount) for driver side.
Unfortunately I wasn't able to get the 'iS mount to use the inserts. While the driver side was easy to push on and then hammer on... the 'iS mount did not want to fit at _all_.... Being so expensive I didn't wail on it, but took measurements.
I can't wait to drive it tomorrow!
So the rubber used with the IS mount is larger? Did you consider removing some of the rubber?
That is certainly what it seems like. I apologize for not measuring the driver side mount but I had the insert installed already... whoops.
I have been on the fence about modifying the 'iS mount, even with inserts. My last OE/BMW 'iS mount lasted me 100k miles and I don't think it is a weak link in my setup. So... this works out for me. I did not modify.
When the subframe is dropped (using engine hoist), mounts are easy... I can always modify the 'iS in the future.
HOWEVER
This book is a freaking liar. 41 ft-lbs sheared the bolt without an issue. (18 ft/lb is what you want!)
What a nightmare to get this bolt out... of... the expensive 'iS mount. LOL
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Honestly I'm stunned that you had a passenger motor mount last 100k miles. The iS mount is really that much better? My standard mount was crushed in less than 30k miles.
I believe on the motor mounts, there are two different torque specs, depending whether upper or lower fastener. From the TIS: 28nm (20 ft lbs) and 68nm (50 ft lbs). Smaller bolt is bottom side at 28nm. Don't know if the iS is different.
Filippo
I believe on the motor mounts, there are two different torque specs, depending whether upper or lower fastener. From the TIS: 28nm (20 ft lbs) and 68nm (50 ft lbs). Smaller bolt is bottom side at 28nm. Don't know if the iS is different.
Filippo
