Anyone upgraded motor mounts yet? Investigating options...

Chowbow · 03-01-2011, 04:12 PM

I searched around but didn't find much information on this. I've always felt the drivetrain thrashes around a lot when going on/off the throttle. Quite a bit more than I'm used to in some of my other cars, including past BMWs. My car is a 6MT, stock motor - only suspension and a LSD installed.

Apparently the 335is has stiffer engine mounts. However, checking on realoem.com reveals the same part number for the 335is as well as the 335i, 32x N52 cars, Z4s, and E82s.

Searching around the 'net shows no specific aftermarket upgraded mounts for the E9x or E82 cars. However several vendors are showing upgraded mounts that fit Z4s... Namely Rogue Engineering's mounts as well as BimmerWorld's in house BMW Motorsport Group N replica mounts. A quick call to RE and they indicated their mounts are compatible with the E90 335i since they are compatible with all Z4s. BimmerWorld could not confirm.

Checking out pictures on realoem.com, it's hard to tell. The N54 engine mounts look like they are encased in a secondary mount which does not look exactly like the "most of the other" BMW motor mounts I've seen. This is what I expect most motor mounts to look like: http://store.bimmerworld.com/bimmerw...unts-p930.aspx

Attached image pulled from realoem.com, shows the N54 motor mount that looks different, but could be a regular mount mounted inside. Has anyone replaced their motor mounts and can attest to what it looks like? Or if there is a stiffer 335is motor mount, is there a part number for it listed that I can't find on realoem.com?

Would like to reduce this driveline slack on the car with the engine mounts and also do the transmission mounts at the same time.

Thoughts?

itsbrokeagain · 03-01-2011, 04:52 PM

The dualmass flywheel does attribute to a lot of herky-jerkyness, Ive noticed on some cars with a lightweight flywheel it doesnt do it as bad.

Ive never seen anyone bust their motor mounts, or have them sag or anything like that..

Chowbow · 03-01-2011, 05:18 PM

I talked with a BMW tech, and the N54 mounts are significantly different than the regular E36/E46 mounts. There will be no way that they fit and it is definitely not like a regular motor mount with a housing or heat shield on it. He has replaced a few just due to wear, but nothing like catastrophic failures. He hasn't done any comparisons between the 335is mounts and the other mounts so he can't comment on that. But the mounts I linked to above definitely won't work.

MDORPHN · 03-01-2011, 06:15 PM

Quote:

Originally Posted by Matt@Camber-Toe

The dualmass flywheel does attribute to a lot of herky-jerkyness, Ive noticed on some cars with a lightweight flywheel it doesnt do it as bad.

Ive never seen anyone bust their motor mounts, or have them sag or anything like that..

I've had motor mounts fail, and it's pretty common for cars that spend a lot of time on road courses.

Neil

Chowbow · 03-01-2011, 07:42 PM

My E36 mounts are pretty worn at 110k miles as well. All regular street driving, no track or autocross at all. So with higher mileage I'm sure people will be replacing them, but wouldn't mind having an upgrade path at the same time.

Clap135 · 03-01-2011, 07:52 PM

I don't know if I would blame the engine mounts for your jerky on/off throttle situation. I would look into upgrading diff and all the bushings in the rear subframe instead.

Chowbow · 03-01-2011, 08:10 PM

Yeah those are coming up next. I'll get the M3 bushings, but the differential bushings that I could find are solid which I'm a little hesitant with.

The jerkiness was apparent even when my car was brand new though, so I do find that there can definitely be stiffer mounts. Most E36/E46 folks who switch to the Group N mounts say it makes a huge difference. But with 36k miles on my car now I'm sure there's some wear on all the bushings and I'm looking to replace and upgrade most of them in the coming months.

DefactoM6 · 03-02-2011, 09:09 AM

In for a worthwhile cause...

JoosyJoos · 03-02-2011, 10:21 AM

I think 35k miles is pretty early to be replacing bushings. They tend to last 50-60k (optimal performance) on the e36s that see track/autox time occasionally. Granted the 335i is heavier...

Chowbow · 03-02-2011, 04:25 PM

Probably on the early side. I do go to a lot of autocross events and have had a few track events in the past. I saw some rear subframe bushings after something like 30-35k miles though and those were HAMMERED. However, I believe those are much weaker than some of the other bushings throughout the car. The diff bushings were also surprisingly soft, but they didn't seem worn out when I checked them out during my diff swap.

Chowbow · 03-09-2011, 11:14 PM

Updating this thread. Looks like there is a slightly different part number for the 335is engine mount, but only on the passenger side of the engine. Info from this thread: http://www.e90post.com/forums/showthread.php?t=499258

johny · 10-25-2014, 06:29 PM

Can someone chime in this subject a little ?
Is there any other company that makes motor mounts for n54's besides rogue engineering ?

Ingeniator · 10-25-2014, 07:05 PM

Quote:

Originally Posted by johny

Can someone chime in this subject a little ?
Is there any other company that makes motor mounts for n54's besides rogue engineering ?

Motiv and or PTF has solid mounts.

Some guys stick oem and use the IS mounts left stays the same the right is stronger.

Those are the only options I would go with. Need to get a set of IS mounts for my daily. Using the PTF ones in my 135.

The Convert · 10-25-2014, 07:22 PM

I have the PTF solid motor and trans mounts and I barely noticed a difference in nvh. I did, however, notice that with solid mounts things like pulling the transmission become MUCH more difficult since the engine won't say at all when you drop the trans brace.

pobudz · 10-29-2014, 10:53 AM

I have the Motiv solid mounts and UUC trans mounts. NVH is noticeably increased after the solid motor mounts, but I also have the upgraded guibo, M3 suspension bits including subframe and diff bushings, and straight pipe exhaust.

That being said, I like the added noise and already had a shit ton of drone due to my exhaust. They are definitely not for everyone but I love them.

johny · 10-31-2014, 07:25 PM

Quote:

Originally Posted by pobudz

I have the Motiv solid mounts and UUC trans mounts. NVH is noticeably increased after the solid motor mounts, but I also have the upgraded guibo, M3 suspension bits including subframe and diff bushings, and straight pipe exhaust.

That being said, I like the added noise and already had a shit ton of drone due to my exhaust. They are definitely not for everyone but I love them.

Hey man are the diff bushings off an m3 e92 are a direct replacement for a 335i ?
If so please send me the link were i am able to find them ..
So basically i just need to change the right side motor mount and leave the left one alone ...

pobudz · 02-21-2015, 11:49 AM

Quote:

Originally Posted by johny

Hey man are the diff bushings off an m3 e92 are a direct replacement for a 335i ?
If so please send me the link were i am able to find them ..
So basically i just need to change the right side motor mount and leave the left one alone ...

One of them is the same. Go on ecstuning, they mark all the M compatible parts for e9x nonM.

Zero_Cool · 03-01-2015, 11:48 AM

Some guys stick oem and use the IS mounts left stays the same the right is stronger.

I'm replacing my motor mounts this week, so I should order two right 335IS mounts to replace my stock 07 335i mounts? Since the right IS mount is stronger, could i use it on both sides on mine? Thanks

Chowbow · 03-02-2015, 03:01 AM

No, the left and right are different mounts.

AKG has 75D poly mounts now. Probably vibrates quite a bit. I'm getting their 95As for my E36 so will see how they fare first before thinking about the 75D in the E90.

joe86 · 06-04-2015, 02:27 AM

It looks like black forest industries came out with a non-bolt through urethane motor mount. I tried emailing them for more details but they haven't emailed back. Has anybody had any experience with this company?

Chowbow · 06-04-2015, 02:52 AM

I spoke with some folks at AKG about 95A N54 motor mounts and they may be coming out with something shortly. I will most likely get them if they release them and let people know how they are.

shushikiary · 06-04-2015, 11:35 AM

Quote:

Originally Posted by Chowbow

I spoke with some folks at AKG about 95A N54 motor mounts and they may be coming out with something shortly. I will most likely get them if they release them and let people know how they are.

I have their 75D ones, but I have a SPEC SMFW.

Vibration above 1500 RPM is ZERO, 1000-1500 isnt too bad, but yes it vibrates, and below 1000 RPM its a nice vibrating massage chair.

03-01-2011, 04:12 PM	#1
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	Anyone upgraded motor mounts yet? Investigating options... I searched around but didn't find much information on this. I've always felt the drivetrain thrashes around a lot when going on/off the throttle. Quite a bit more than I'm used to in some of my other cars, including past BMWs. My car is a 6MT, stock motor - only suspension and a LSD installed. Apparently the 335is has stiffer engine mounts. However, checking on realoem.com reveals the same part number for the 335is as well as the 335i, 32x N52 cars, Z4s, and E82s. Searching around the 'net shows no specific aftermarket upgraded mounts for the E9x or E82 cars. However several vendors are showing upgraded mounts that fit Z4s... Namely Rogue Engineering's mounts as well as BimmerWorld's in house BMW Motorsport Group N replica mounts. A quick call to RE and they indicated their mounts are compatible with the E90 335i since they are compatible with all Z4s. BimmerWorld could not confirm. Checking out pictures on realoem.com, it's hard to tell. The N54 engine mounts look like they are encased in a secondary mount which does not look exactly like the "most of the other" BMW motor mounts I've seen. This is what I expect most motor mounts to look like: http://store.bimmerworld.com/bimmerw...unts-p930.aspx Attached image pulled from realoem.com, shows the N54 motor mount that looks different, but could be a regular mount mounted inside. Has anyone replaced their motor mounts and can attest to what it looks like? Or if there is a stiffer 335is motor mount, is there a part number for it listed that I can't find on realoem.com? Would like to reduce this driveline slack on the car with the engine mounts and also do the transmission mounts at the same time. Thoughts? Attached Images __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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03-01-2011, 04:52 PM	#2
itsbrokeagain 310 Rep 15,745 Posts Drives: 1999 528iT, E53 X5, E46 325xi Join Date: Mar 2007 Location: Strong Island iTrader: (7)	The dualmass flywheel does attribute to a lot of herky-jerkyness, Ive noticed on some cars with a lightweight flywheel it doesnt do it as bad. Ive never seen anyone bust their motor mounts, or have them sag or anything like that..
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03-01-2011, 05:18 PM	#3
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	I talked with a BMW tech, and the N54 mounts are significantly different than the regular E36/E46 mounts. There will be no way that they fit and it is definitely not like a regular motor mount with a housing or heat shield on it. He has replaced a few just due to wear, but nothing like catastrophic failures. He hasn't done any comparisons between the 335is mounts and the other mounts so he can't comment on that. But the mounts I linked to above definitely won't work. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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03-01-2011, 07:42 PM	#5
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	My E36 mounts are pretty worn at 110k miles as well. All regular street driving, no track or autocross at all. So with higher mileage I'm sure people will be replacing them, but wouldn't mind having an upgrade path at the same time. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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03-01-2011, 07:52 PM	#6
Clap135 Brigadier General 102 Rep 3,460 Posts Drives: 2009 N54 Join Date: Jul 2009 Location: Sticky's Mom House iTrader: (1)	I don't know if I would blame the engine mounts for your jerky on/off throttle situation. I would look into upgrading diff and all the bushings in the rear subframe instead.
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03-01-2011, 08:10 PM	#7
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	Yeah those are coming up next. I'll get the M3 bushings, but the differential bushings that I could find are solid which I'm a little hesitant with. The jerkiness was apparent even when my car was brand new though, so I do find that there can definitely be stiffer mounts. Most E36/E46 folks who switch to the Group N mounts say it makes a huge difference. But with 36k miles on my car now I'm sure there's some wear on all the bushings and I'm looking to replace and upgrade most of them in the coming months. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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03-02-2011, 09:09 AM	#8
DefactoM6 Sees the world the way it could be 49 Rep 761 Posts Drives: '88 M6, '02 Z8, '09 E92 335i Join Date: May 2010 Location: CT iTrader: (11)	In for a worthwhile cause... __________________
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03-02-2011, 10:21 AM	#9
JoosyJoos Major 113 Rep 1,347 Posts Drives: 2011 335d Join Date: Apr 2007 Location: Atlanta, GA iTrader: (1) Garage List 2008 BMW 335i [0.00]	I think 35k miles is pretty early to be replacing bushings. They tend to last 50-60k (optimal performance) on the e36s that see track/autox time occasionally. Granted the 335i is heavier... __________________ 1997 M3 Coupe - BMWCCA I-Prepared #22 2006 M Roadster - 23,000 miles and slowly counting
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03-02-2011, 04:25 PM	#10
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	Probably on the early side. I do go to a lot of autocross events and have had a few track events in the past. I saw some rear subframe bushings after something like 30-35k miles though and those were HAMMERED. However, I believe those are much weaker than some of the other bushings throughout the car. The diff bushings were also surprisingly soft, but they didn't seem worn out when I checked them out during my diff swap. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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03-09-2011, 11:14 PM	#11
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	Updating this thread. Looks like there is a slightly different part number for the 335is engine mount, but only on the passenger side of the engine. Info from this thread: http://www.e90post.com/forums/showthread.php?t=499258 __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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10-25-2014, 06:29 PM	#12
johny Second Lieutenant 10 Rep 214 Posts Drives: 335i Join Date: Sep 2008 Location: Montreal,canada iTrader: (0)	Can someone chime in this subject a little ? Is there any other company that makes motor mounts for n54's besides rogue engineering ?
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10-25-2014, 07:22 PM	#14
The Convert Banned 43 Rep 303 Posts Drives: 335i Join Date: Oct 2014 Location: midwest iTrader: (0)	I have the PTF solid motor and trans mounts and I barely noticed a difference in nvh. I did, however, notice that with solid mounts things like pulling the transmission become MUCH more difficult since the engine won't say at all when you drop the trans brace.
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10-29-2014, 10:53 AM	#15
pobudz Private First Class 35 Rep 169 Posts Drives: E92 335i Join Date: Oct 2011 Location: Avondale AZ iTrader: (1)	I have the Motiv solid mounts and UUC trans mounts. NVH is noticeably increased after the solid motor mounts, but I also have the upgraded guibo, M3 suspension bits including subframe and diff bushings, and straight pipe exhaust. That being said, I like the added noise and already had a shit ton of drone due to my exhaust. They are definitely not for everyone but I love them. __________________ IG @pobudz \| '08 e92 335i - MOTIV 750 w/ PI & AEMMHD tuned, tial bov, ER cp, ADE "800HP" fmic, Corsa 3.5" catback, m3 suspension bits (F&R sway, F&R control arms), rogue toe arms, MOTIV motor mounts, UUC trans mounts and RTD shifter. H&R sports and Koni's, 17x9/17x10.5 Forgestar F14 w/ Mickeys. Quaife 3.08 LSD, M3 subframe and diff bushings. MOTIV Twin disk. Fuel-IT Stage 3+.
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03-01-2015, 11:48 AM	#18
Zero_Cool Lieutenant 191 Rep 527 Posts Drives: 18 M3 Imola 6spd Join Date: Feb 2015 Location: Nashvegas iTrader: (1)	Some guys stick oem and use the IS mounts left stays the same the right is stronger. I'm replacing my motor mounts this week, so I should order two right 335IS mounts to replace my stock 07 335i mounts? Since the right IS mount is stronger, could i use it on both sides on mine? Thanks
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03-02-2015, 03:01 AM	#19
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	No, the left and right are different mounts. AKG has 75D poly mounts now. Probably vibrates quite a bit. I'm getting their 95As for my E36 so will see how they fare first before thinking about the 75D in the E90. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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06-04-2015, 02:27 AM	#20
joe86 Private 20 Rep 54 Posts Drives: 08 135 coupe Join Date: Jul 2014 Location: bay area iTrader: (0)	It looks like black forest industries came out with a non-bolt through urethane motor mount. I tried emailing them for more details but they haven't emailed back. Has anybody had any experience with this company? __________________ m3 f. con. arms, RE tension arm bush.'s, vorshlag plates, bilstein sports, swift springs, toe arms, dinan rsm's, alum. rsfb's, cobb2+. 1m strut brace, ARC-8, RE71R 235/265.
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06-04-2015, 02:52 AM	#21
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	I spoke with some folks at AKG about 95A N54 motor mounts and they may be coming out with something shortly. I will most likely get them if they release them and let people know how they are. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
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