TMS Solid/Delrin rear subframe mounts - best mod!

Malek@MRF · 12-04-2013, 01:31 PM

Quote:

Originally Posted by tmntmn

anyone know how much NVH will be introduce if we run Solid Aluminum subframe bushing and Rear Differential Mounts?

Quote:

Originally Posted by Z K

Don't polyurethane bushings need to be lubed or else they squeak? I'm speaking from my experience with them on aftermarket sway bars.

I always avoid the polyurethane bushings for sway bars because of the squeaking. I've found harder rubber bushings better.

There is minimal to no NVH increase from the sub-frame bushing replacement. All new M's have this, including the more luxury oriented M5/M6 model. Changing differential bushings to Delrin, Poly or harder rubber will induce slightly more noticeable gear whine, but not harshness.

Poly bushings need to be serviced frequently with lubricant, or they will get noisy over time. Less servicing is required in the case of the sub-frame as not a ton of movement is present there compared to a sway bar, but those need lubrication as well. Polyurethane is not a service free item.

tom @ eas · 12-04-2013, 02:23 PM

Quote:

Originally Posted by Z K

Don't polyurethane bushings need to be lubed or else they squeak? I'm speaking from my experience with them on aftermarket sway bars.

I always avoid the polyurethane bushings for sway bars because of the squeaking. I've found harder rubber bushings better.

The poly bushings are merely insulators (ie: no moving parts), there is no need to lube these. I haven't heard a squeak since they were first installed.

We'll have the aluminum ones measured up this week for the racecar. Also get a sample printed out on our 3D printer to verify drawing/measurements as well as the new design. If there is significant interest in things like this, we can post a separate thread about it.

Malek@MRF · 12-05-2013, 12:21 PM

Quote:

Originally Posted by tmntmn

anyone know how much NVH will be introduce if we run Solid Aluminum subframe bushing and Rear Differential Mounts?

Quote:

Originally Posted by Mrbig

Where did u buy them ? Work ok with coilovers ? Curious

Quote:

Originally Posted by BarryC

Any updates from someone with these mounts? Bad idea for a street car?

TIA,
Barry

tmntmn · 12-05-2013, 01:08 PM

Quote:

Originally Posted by Malek@MRF

Looking good Malek, still considering the upgrade

italyix · 12-07-2013, 03:46 PM

Quote:

Originally Posted by tmntmn

anyone know how much NVH will be introduce if we run Solid Aluminum subframe bushing and Rear Differential Mounts?

Minimal if any...most of the noise comes from the Diff Mounts and its only a slight whine. The biggest contributor to NVH are engine mounts and even then they are completely liveable with even with a DD (at least for me).

Wendall · 12-08-2013, 10:51 AM

Looks good. I just got back from Maui. Malek I will see you on Tuesday.

mkPOTO · 12-08-2013, 12:40 PM

thanks for the info, have been looking into these for quite a bit of time

OM VT3 · 12-08-2013, 07:48 PM

Can anyone get me the part number to the BMW tool for the subframe and diff bushings?

12-08-2013, 10:51 AM	#50
Wendall ***Major MammelToe 158 Rep 1,139 Posts Drives: E92 M3 SG coupe Join Date: Feb 2012 Location: Orange County, CA iTrader: (3)	Looks good. I just got back from Maui. Malek I will see you on Tuesday. __________________ E92 M3 SG DCT - AA Filter, Verstraβe Paddles, ECS SS, MH race stud, Stoptech BBK, MR Exhaust,RE Pulley, BPM Tune,Euro bumper and GTS lip, Euro MDM & DCT, KW CS, Recaro PP, TMS Soild Diff Mounts, MRF solid subframe mounts, GTS aero, RPM track built motor.
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12-08-2013, 12:40 PM	#51
mkPOTO Mr. Nice Says Hello 635 Rep 16,662 Posts Drives: BMW M3 \| X5 xdrive 35i MSport Join Date: Dec 2008 Location: USA iTrader: (25) Garage List 2002 Lexus GS300 [0.00] 2008 BMW E92 M3 [5.58]	thanks for the info, have been looking into these for quite a bit of time
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12-08-2013, 07:48 PM	#52
OM VT3 Lieutenant Colonel 140 Rep 1,665 Posts Drives: 2011 e92 zcp m3 Join Date: Aug 2010 Location: Somewhere iTrader: (1)	Can anyone get me the part number to the BMW tool for the subframe and diff bushings?
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