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Question about changing rod bearings

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Viren
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Question about changing rod bearings

Post by Viren » Thu Mar 23, 2017 9:06 pm

hopz121 wrote:
Viren wrote:So I'm booked in to have rod bearings and bolts changed next Wednesday along with vibratechnic road mounts at cpc engineering. Will report back on condition of bearings in a new topic.
I would be careful with those engine mounts mate I have heard many stories of people being really unhappy with the vibrations they cause and having to pay to rectify it!
I was worried but read many reviews where people were happy with them and said there was little nvh. Although interested to hear any views
07 Z4MC standard spec

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GuidoK
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Question about changing rod bearings

Post by GuidoK » Thu Mar 23, 2017 9:35 pm

I can say from personal experience with the VT road mounts that there is slightly more NVH at idle (you can feel it when you put your leg against the drivetunnel) and that there is no more NVH at driving revs.
For say a 5 series the added nvh at idle might be a bad choice for the type of car that that is (as thats all about comfort waiting in daily traffic and such), but for a sportscar its in a perfectly acceptable range. An e85/6 is already a car with a lot of NVH in general on virtually all aspects.
Installing something like coilovers (any type) will give more NVH than those road mounts.
Z4 3.0i | ESS TS2+ | Quaife ATB LSD | Brembo/BMW performance BBK front/rear | Schrick FI cams | Schmiedmann headers+cats | fully polybushed | Vibra-technics engine mounts | H&R anti rollbars | KW V3 coilovers | Sachs Race Engineering clutch

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Steve84N
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Question about changing rod bearings

Post by Steve84N » Fri Mar 24, 2017 2:02 pm

I concur with GuidoK having got Vibratechnic Road mounts on my N52 Coupe. It vibrates at idle but not on the move and it's not much due to the inherent smoothness of an I6.
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BMWZ4MC
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Question about changing rod bearings

Post by BMWZ4MC » Mon Mar 27, 2017 6:44 am

I have the VT competition mounts on my ///M. The increase in NVH at idle is not intrusive and the stiffness of my modified suspension masks any perceptible difference when moving.
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Muckinonthesofa
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Question about changing rod bearings

Post by Muckinonthesofa » Mon Mar 27, 2017 9:49 am

I'd only read positive things about VT engine mounts until this, including that they improve the gear change.
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