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BMW 3-Series (E90 E92) Forum
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M3 Control Arms Front & Rear
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12-03-2017, 07:21 PM | #23 |
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I should be trying to find a place that has alignment rack? Or as long as installed right any decent alignment tech can adjust the new adjustable parts? Thanks for all the help.
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12-03-2017, 08:13 PM | #24 |
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Drives: 2007 Black/Black 335i e90
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Yes, the car will absolutely need a 4-wheel alignment after you do a suspension project. Plan on paying about $90-100.00
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12-04-2017, 11:46 AM | #27 | |
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Although, I don't know why you wouldn't do the subframe bushings, especially if you are over 100,000 miles. |
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12-04-2017, 01:32 PM | #28 | |
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Passengers don't seem to notice a difference either. The F series M cars don't even have subframe bushings, the subframes are just bolted to the chassis. The super soft stock bushings are only necessary due to runflat tyres IMO... My car with stock bushings and runflats rode much worse than my car now with PS4s and the current setup. |
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12-04-2017, 02:28 PM | #29 | ||
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Drives: 2007 Black/Black 335i e90
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If you stop the think about it, the M3 has the exact subframe & diff bushings I have, and it is "legendary" on the Nuremberg test track. While I understand that the M3 has a few suspension parts I don't have, the fact that a have a couple is good enough for me. Point being, the e90 m3 doesn't use poly bushings at all. The m3 is a car that is meant to be a DD but one that could be tracked on occasion. |
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12-04-2017, 05:05 PM | #30 | |
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Yes the E9x M3 bushings are probably as stiff as you'll ever need, but my point is poly bushings are not "too stiff" Some people have gone for solid aluminium and report it feels fine too. Although due to cost and installation difficulty I'd advise against those as I don't think there's a significant benefit. M3, poly, or inserts, for most of us I'd say any of those options work well. The extra stiffness and durability of solid poly bushings might provide a slight benefit for tracking and long term wear. Honestly I think to reach or exceed M3 suspension doesn't actually require all the parts. Shocks/springs, subframe bushings, a diff brace and you're set. The next worthwhile handling mod from there is probably an LSD. Yes that right, I didn't include control arms I know not everyone will agree there. Last edited by maddmatth; 12-04-2017 at 05:14 PM.. |
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12-05-2017, 02:29 PM | #33 | |
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12-05-2017, 03:25 PM | #34 |
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PM a user named vwetish on N54tech for one that you won't find for sale on any store.
I got mine from him. Nice single piece of metal with no welds, and cheap. There are others around including some fancy ones with a bushing. IMO the simple metal brace is perfectly fine for most of us. Only difference to NVH that I can tell is that I do get a harsher kick from the transmission sometimes, mainly the downshift from 2nd to first when slowing down or the 1-2 shift when accelerating briskly. I have a DCT and these do tend to give you a kick sometimes, so this may not be noticeable for regular auto transmissions. I do imagine manual drivers will also feel it a little more when their shifts aren't smooth. But it's not bad at all and the part is easily removed if it ends up bothering you. I'm just very attentive to these little details so I'm describing the difference as best I can |
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12-05-2017, 05:08 PM | #35 |
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Drives: 2007 Black/Black 335i e90
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http://www.e90post.com/forums/showthread.php?t=806041
https://www.x-ph.com/defiv-fabricati...-lockdown-kit/ I'd put an LSD differential in before I did this considering the price. |
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12-05-2017, 06:42 PM | #36 | |
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There is this one too: https://***********ions.com/products...e-for-e9x-335i (link censored? Oh well, you'll come across it if you google) But I don't like it as much because welds mean it could break rather than bend. And it's more expensive. But still a good option if you can't get one from vwetish. |
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12-06-2017, 06:37 PM | #37 | ||
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12-08-2017, 10:04 PM | #38 | |||
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Drives: 2007 Black/Black 335i e90
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You can upgrade to M3 swaybars or look at Eibach swaybars for about $100.00-$200.00 cheaper. I have seen the set for $277.50 on Amazon. https://www.amazon.com/Eibach-2085-3.../dp/B000Q0S0AG If you are a DD only, that might be of my last upgrades, when I get around to it. If you are tracking the car, it might move up the priority list. |
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