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BMW 3-Series (E90 E92) Forum
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Sway bars for the 335i?
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08-14-2007, 03:31 PM | #23 | ||
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E90/E92 Sway Bar Sizes Front RD Sport 30 mm vs stock 26.5mm vs H&R 27mm Rear RD Sport 24mm vs stock 13mm vs H&R 20mm Quote:
RD Sport/Racing Dynamics is a tuner company that only works on BMW's and we believe in tuner brands. Once the bars come out, we will put them on some cars and do some testing and provide an honest opinion. |
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08-14-2007, 05:25 PM | #24 |
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08-14-2007, 05:47 PM | #25 | |
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I am just looking for a happy medium for street use only. I had H-sport sways on my S4 and they were perfect, less body roll than stock and neutral handling. I am trying to achieve the same thing here.
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08-14-2007, 06:32 PM | #26 |
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you can clearly see what I drive in my sig, or in that stuff under my picture dealy
I've run RD sways on my previous cars and from what they did to my E30, I think that if they made the same difference in the E90 that they did to that car it'd reduce my main gripe about the handling of this car do you think there's something special about the 335 that's not common to a 325 suspension wise? |
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08-14-2007, 06:39 PM | #27 | |
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08-15-2007, 12:40 AM | #28 |
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Same boat going UUC
I have the same goals as the OP. Additionally I am taking my car to the track and would love quicker turn in but I'm not interested in lowering or reducing ride comfort.
I'm having the UUC Swaybarbarians installed later this week by a Dinan outfit in San Rafael. Even though they don't sell these they had nothing but good things to say about them. I then called UUC and was very impressed with their attitude, knowledge and passion for their product. I'll let you know how it feels once I have them in. |
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08-15-2007, 10:21 AM | #29 | |
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I believe the suspension on the 325 is different than the 335i, especially the coupe. The E92 is lower, likely stiffer, weighs more and the chassis is different. Do I think the oversteer/understeer condition might be different? Yes. You can't apply blanket statements such as "stiffen a rear bar and it'll cure understeer." There are too many variables. I think everyone needs to understand where people come from. S4to335, for example, is a hardcore road course guy who has taken his 335i to the track. When he says X appears to solve problem Y that he experienced on the track, I follow his logic. Your logic appears to be based on: 1) It helped my E30 2) It'd probably help my 325 3) Therefore, it will help your 335i also! Don't take offense. It's just meant to clarify. |
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08-15-2007, 10:42 AM | #30 | |
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The adjustability is not something I will adjust before and after I got to the track...it is just so I have more options as to where to put the car. I have played a bunch with rear sway bars on audis..from the stock 12mm to 16mm..to 19mm and even 22mm bars. The 19 and 22 had adjustment..and it really helped get the car where I wanted it to be. I still recommend that even you street-only guys consider an adjustable rear sway bar to be able to get what you want. I have no experience (ZERO) experience with non-adjustable H&R sway bars on E90 platform cars..so they may be fine in terms of diameter, design, and stiffness...or they may not. My suggestion is always to try to get a ride with someone that has the set up that you are considering. That is the only way you will know what you are getting. Having an adjustable bar doesnt lock you into something. Caveat emptor.
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08-15-2007, 10:46 AM | #31 | |
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08-15-2007, 10:51 AM | #32 | |
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the whole point of changing the sways is to change the balance of the car so it's more to your liking, upgrading to adjustable bars gets you the option to "fine tune" slightly if you get non adjustable ones and still don't like the balance you have to go buy new bars and redo the whole install |
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08-15-2007, 11:24 AM | #33 | |
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And apparently the install on our cars is not very easy. I have done tons of rear bar installs on Audis...piece of cake...
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08-15-2007, 12:05 PM | #34 |
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08-15-2007, 12:32 PM | #35 |
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The more I read, I am now thinking about doing H&R Sway bars, KW V2 Coilovers, performance street alignment, and corner balance all at the same time.
S4to335i: I gave Brad a call and he seemed very nice and helpful, thanks for the recommendation. If I decide to pull the trigger on all this (which is very likley right now) I will go with him for everything. They seem like a quality shop who deal with a lot of high end cars.
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08-15-2007, 01:11 PM | #36 | |
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08-15-2007, 01:15 PM | #37 |
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Is that who did your Psss9 install?
Did you have any issues with the DSC with adding coilovers?
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08-15-2007, 02:41 PM | #38 |
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No, Navid @ Extreme Performance did my pss9 install...but he recently sold his shop. I have known Navid for 10 years..he moved to Portland. Navid raced e36 and e46 M3s...and Evos...and he charged me hardly nothing for the install. Brad is who did all the mod removal on my Audi before I traded in back in. I know Brad from Autocrossing...Brad installed my exhaust on my 335i too.
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08-15-2007, 02:42 PM | #39 |
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DSC? stabilization control?
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08-15-2007, 02:53 PM | #40 |
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Correct, the Stability control system. I don't think the stock suspension has any electrical links to the DSC systems. But I didn't know if changing out basicly the entire suspension would throw off the DSC system at all, or trip any fault codes
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16' M3 MG Ext. /SO Int. (DCT, Ohlin R/T, 19" wheels) 15' Audi S4 13' Audi TTRS (APR stage 1, MSS springs) 09' C6 Z06 08' M3 Interlagos Blue: 6sp, Tech. |
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08-15-2007, 03:24 PM | #41 |
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None that I know of.
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08-18-2007, 09:02 AM | #42 |
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XI Sways?
Any sway bars yet for the 335xi?
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08-18-2007, 08:30 PM | #44 |
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I'm with you. This thread has helped me quite a bit.
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