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04-08-2013, 03:21 PM | #67 |
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Thanks for the update and link to the review. Poly transmission mounts only really is a bad idea. Sounded like a tractor to me!
It's interesting that stiffening both engine and transmission mounts tames the NVH a bit. Good info! |
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05-11-2013, 08:47 PM | #68 |
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Anyone know the difference between the E46 M3 transmission mount vs. the Z4M transmission mount? Looking at Realoem & Tischer, they are different part numbers:
Z4M: 22316799331 E46 M3: 22322282340 I saw a thread (can't find it now) where a 1M owner compared different trans mounts, including OE and aftermarket. The end conclusion was the E46 M3 trans mount was a good upgrade over the stock mount and was very good for NVH. *Update* Just looked up the part# for the 1M trans mount: 22316799331 - same as the Z4M. Interesting.. ! Last edited by tribe; 05-11-2013 at 08:53 PM.. Reason: New info |
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05-15-2013, 09:40 PM | #70 |
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Added the Vibratechnics engine mounts (street) and the Rogue tranny mounts last week. No new noises or vibrations that I can discern and the shifting feels WAY better. Things overall feel a little bit tighter but I did still get the 1-2 grind once at the auto-x over the weekend so that hasn't been completely resolved.
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05-18-2013, 09:05 PM | #71 | |||
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05-18-2013, 10:43 PM | #72 |
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Thanks for posting this up! After following this thread, I had R&E transmission mounts installed. My Z shifts much better! Time to get the CVD mod done!
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05-18-2013, 11:10 PM | #73 |
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3-2 seems easier but I haven't had it on the track yet to really know for certain. I used to get denied or grinding pretty consistently once the tranny got hot on the track but on the street it's hard to say....
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10-18-2015, 04:30 PM | #74 |
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Bumping this sticky from the dead.
Installed RE trans mounts with enforcer cups this morning (on the ground, how unpleasant...). Shifting on a short test drive feels better, some noticeable increase in noise and vibration under light loads in the 3,000-3,500rpm range. Overall I'm happy with it. I'll see if it stays positive over the next couple weeks when I can drive the car in dry conditions. Call me crazy but it even seems like it helped to slightly reduce driveline sloppiness, like the powertrain isn't wobbling around as much when going on/off throttle. I probably would have been as happy without the cups on the RE mounts as you can tell just by feeling them that they're significantly more solid than the oem setup. If I end up being unhappy about the cups I guess I can always pull them back out and plunk them in the e30. I'm probably going to try the VibraTechnics motor mounts in the spring, once I'm done rebuilding the e30 motor, see how I feel about the combination. I see most people are commenting that the VT and RE combo actually has less vibrations than oem and RE combo?
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10-20-2015, 01:10 PM | #75 | |
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Seems the issue is one of both engine movement and transmission moving the drivetrain around. Addressing that on both ends seems to stabilize and reduce the overall vibration issue. |
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10-20-2015, 01:37 PM | #76 |
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10-20-2015, 02:40 PM | #77 |
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I think I overtightened the nuts.... I spoke with RE and they told me that it does make a difference to have it too tight, they also VERY strongly advised removing the enforcer cups, so I'm just gonna tackle this whole thing again... maybe tonight.
I think I'll try removing the entire bracket from the trans this time by pulling the 4 e-torx bolts out. I'm thinking 1: Assemble everything off the car, tighten the top nuts to spec and oriented to line up with the bottom crossmember. 2: Remove crossmember, install the top bracket onto trans with pre-torqued mounts on it 3: Install crossmember and heat shield. 4: Profit? Motor mounts still planned for springtime maybe. We'll see.
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10-20-2015, 11:30 PM | #78 |
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Tell me about it! I recently installed the UUC black mounts and it required some serious hand/finger contortion to get it done. I love the more solid shifting but I'm not overly happy about the increased NVH. They are staying in regardless!
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10-25-2015, 07:46 PM | #79 |
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Took a couple days to get to it, apparently part of my vibration came from my motor mount bolts on the passenger side coming loose. Best guess is it happened during trans mount install, cause it was fine before, but vibrated on the post install test drive.
So that was a fiasco, I learned of the motor mounts when my vanos pressure line blew up the day I made my last post. It's all fixed up now but it still had vibration issues. I re&re'd the mounts again this morning, for the record removing the entire bracket is the way to go. I was able to pull the top bracket, mounts, and crossmember as one piece. I removed the cups and assembled it all on the bench then took the lower crossmember back off, installed the upper bracket with mounts attached. Following that you just pop the crossmember over the lower studs and bolt it up. TLDR: rogue tranny mounts are good on their own, but do not use the enforcers. The extra noise and vibration is just not worth it. |
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01-14-2016, 12:48 AM | #80 | |
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Good info and updates. |
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01-14-2016, 08:27 AM | #81 | |
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01-14-2016, 08:39 AM | #82 | |
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The cups should really be used on a dedicated track car only. They transmit a lot of NVH and do not provide much benefit.
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01-19-2016, 08:05 PM | #84 |
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Yep. I still want the improved motor mounts but our awful Canadian dollar is killing us right now. The cost of everything has risen by 30+% in the last year! Update on the rogue mounts? They're great. I never notice any negatives to having just them installed and see no reason why I would bother to re-install the enforcer cups. Leave them out, they add bucket loads of NVH that just aren't worth it on a street car.
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06-03-2017, 08:17 AM | #85 |
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Ant reports on the AKG solid mounts? Track only
https://www.akgmotorsport.com/produc...-e46-aluminum/ Or this Poly set? Track and fast road only https://www.akgmotorsport.com/produc...yurethane-75d/
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06-05-2017, 02:01 AM | #86 | |
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05-04-2019, 11:27 AM | #87 |
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Bring this back from the dead. I saw this UUC NVH issue addressed on a m5 forum post:
https://www.m5board.com/vbulletin/e3...tml#post520390 Apparently, pre-loading and over torquing are 2 known issue of NVH on UUC (mainly pre-loading). Any first hand experience? |
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05-12-2019, 04:50 PM | #88 | |
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The trans mount just happens to be right where any noise goes to center cabin. And it turns out that motor mounts, not trans mounts, seem to have more impact on shifting issues, so I've keep neoprene for the trans application area. Ymmd |
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