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      05-31-2010, 09:25 PM   #1
onefastman
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Coil over help!

I just ordered a used set of pss9's off of a 335i and from what I heard the part numbers are the same just a slightly different spring rate.

1. My issue is my wheels.... They are vmr csl's 19X8.5 et40 (225/35/19) and 19X9.5 et 45 (245/35/19) and they WILL RUB with the coils on. I plan to roll the fenders but how much difference will it make? I also have the m3 front control arms that I have been waiting to put on but the rears are already close and rub over large bumps.

2. I am considering a rear sway bar and sub frame bushings. How hard are the bushings and is the bar helpful/worth it.

3a. Will I need an alignment with just coils?
3b.Would this be a solution to my wheel fitment aka more neg. camber?
3c. How does an alignment work? Do I take it to them and then pick it up or do I specify what I want done? If so what should I ask for?
3d. What should I expect to pay and should I take it to bmw?


Also if there are any other upgrades I should do while I have it all apart?
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      05-31-2010, 11:44 PM   #2
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My wheels are very similar. I'm lowered 20mm and my rears were rolled. I have everything working with pretty much no rubbing (occasionally the front either rubs or bottoms or something, it's rare so I haven't tried to figure it out yet).

Rolling, bending, etc will gain you 5mm or so. Trimming will gain more like 10mm.

Installing coilovers will definitely require an alignment after so you may as well install your front control arms at the same time. You can definitely to some degree specify some of the settings that you want during the alignment. Coilover install probably runs anywhere from $350 to $650, plus another few hundred if you also do a corner balancing.

A stiffer rear sway may give you some traction issues while cornering. I'd stay away from it unless you are also planning an LSD. I've considered a front sway but just coils and the front control arms has my suspension working good enough for me.
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      06-01-2010, 12:22 AM   #3
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coilover install for 350???? damn lol
my installer quoted me 200....and he's a BMW certified technician....
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      06-01-2010, 05:17 AM   #4
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no matter what, the car will not feel "whole" without subframe bushings. BAM - I said it. worth it? yes Hard? Yes. Here is how we did my car http://www.1addicts.com/forums/showt...=321954&page=3 last page.
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Last edited by arrutled; 06-01-2010 at 05:23 AM..
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      06-01-2010, 07:46 AM   #5
onefastman
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Looks like I am getting subframe bushings. I will set up something for me to take out my agression on every 15 min or so as it looks like I will need it.


Also what should I set the stiffness at? I have read anywhere from 7/4- 4/2
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      06-01-2010, 08:16 AM   #6
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anger, frustration, fatigue. all included in subframe job. whatever you do don't lay under car while removing bushings. Be very wary of all brake lines as well. good luck.
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      06-01-2010, 08:37 AM   #7
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I have a lift so I dont plan on it but thanks for the advice and the diy. I am sure it will be helpful.
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      06-01-2010, 09:09 AM   #8
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Quote:
Originally Posted by onefastman View Post
I have a lift so I dont plan on it but thanks for the advice and the diy. I am sure it will be helpful.
Well if your on a lift, you will need some way of keeping the subframe still while you crank on the bushing. Otherwise the subframe will just move and you will get no leverage. We used a jack to keep the subframe from coming down. unless you have the bmw subframe extractor tool which looks like:
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      06-01-2010, 10:08 AM   #9
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This looks like it will be a blast!
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      06-01-2010, 11:00 AM   #10
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lol, I know you will have fun. bushings alone are a 5 hr job.
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      06-01-2010, 11:33 AM   #11
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Dam, but how long would you estimate for coil's and how long for both?
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      06-01-2010, 01:18 PM   #12
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dunno, never done them. But, I would assume they are about the same as doing springs, so 4 hours. you can do the rear of the car at the same time as your doing the subframe bushings. My springs actually fell out while doing the job. so take an hour away from that. I would start early. are your coiloves already put together with a camber plate? that will save you some time too if you don't have to compress springs.
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      06-01-2010, 02:03 PM   #13
onefastman
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The pss9's dont come with camber plates. Is that something that is worth while to do, as far as cost goes?
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      06-01-2010, 02:21 PM   #14
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I would hate to see you have to install them later. Its the same job as just the coilovers. It would actually be easier if you could put the camber plate on first. then you could just slide the old ones out and put the new ones in if you know what I mean.
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      06-01-2010, 05:56 PM   #15
onefastman
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True, it looks like I need to come up with another $700 for camber plates and subframe bushings.... WTF!
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      06-01-2010, 06:14 PM   #16
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Well you could wait, might be better served spending that money on the driver mod. I know thats what I need most, lol
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      06-01-2010, 10:13 PM   #17
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Thats what I hear, my bmw club has a school this saurday/sunday. I think I agree
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