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Go Back   E46Fanatics > Tuning & Tech > Suspension & Braking

Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 10-13-2013, 02:01 AM   #1
hitmanre
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sway bar upgrade question

Hi guys I was just looking for a upgrade for my sway bars, i have a 328i with sport suspension and was looking for something that will reduce body roll on my eibach pro kit springs and koni fsd struts and shocks. any suggestions? thanks
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Old 10-13-2013, 11:13 AM   #2
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Turner/h&r or hotchkis
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Old 10-13-2013, 11:16 AM   #3
ICONIKE46
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hotchkis 100% - just installed em on my car and they are amazing. was recommended by a good friend of mine so I went with it an couldn't be happier.

Though I did hear about turner sways being very nice so whichever appeals to you more. Can't go wrong with either
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Old 10-13-2013, 11:33 AM   #4
hitmanre
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sway bar upgrade question

How much are hotchkis set?


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Old 10-13-2013, 12:44 PM   #5
hitmanre
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http://www.tirerack.com/suspension/s...0&autoModClar=

?
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Old 10-13-2013, 07:18 PM   #6
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Hotchkis. I have them on both my 328 and 325, and after four years on the former they are still like new.
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Old 10-13-2013, 08:18 PM   #7
hitmanre
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sway bar upgrade question

Where the ones I posted on tire rack the ones you got? And if so what were the differences between the hotchkis and stockers


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Old 10-14-2013, 10:03 AM   #8
Bino5150
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BMW Sport suspension sway bars are actually pretty decent. Poly swaybar bushings front and rear will do wonders.
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Old 10-15-2013, 12:48 PM   #9
hitmanre
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sway bar upgrade question

Ill be ordering the hotchkis soon. Ill post back with updates


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Old 10-16-2013, 09:47 AM   #10
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Correct me if I'm wrong here, but the Hotchkis, while having a larger OD than the Sport sway bar, is a hollow tube sway bar. For that price, I would honestly suggest trying poly bushings on the sport sways. Just an opinion... Either way, it should be an improvement.
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Old 10-16-2013, 09:58 AM   #11
pawelgawel
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Re: sway bar upgrade question

You can also go oem and upgrade to a m3 front and a convertable non m rear.. they are slightly bigger then sport.

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Old 10-16-2013, 10:03 AM   #12
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And the stiffer poly bushings make just about as much (if not more) noticeable difference as the bigger bars. Most people install the bushings with the new bar an think "wow, this new bar is great!", not realizing new poly bushings on the old bar would have been just about as great for about 10% of the cost of the kit.
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Old 10-23-2013, 03:47 PM   #13
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Quote:
Originally Posted by Bino5150 View Post
Correct me if I'm wrong here, but the Hotchkis, while having a larger OD than the Sport sway bar, is a hollow tube sway bar. For that price, I would honestly suggest trying poly bushings on the sport sways. Just an opinion... Either way, it should be an improvement.

hollow is not a limit of how they perform, it's a benefit for weight savings. hollow bars are made that way for it's gains.

the Hotchkis/H-Sport bars also come with new bushings, brackets, endlinks, and adjustable bars.

you get a lot for the price.
but agree, new poly swaybar bushings can help a lot. but the bushings alone aren't that inexpensive for a whole front/rear set.
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Old 10-30-2013, 12:17 PM   #14
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Furthermore, properly designed hollow sways will have quite a bit more torsional rigidity than solid bars. I know that the difference between stock Sport Sways and Hotchkis was around 1.8-2.2lb/ea.

And as mentioned, your eally do get a lot for your money. I upgraded to TMS adjustable endlinks, eventually, but I did have the TMS sway tab reinforcements welded on way back when I first had the sways installed (along with the entire rest of the TMS weld in chassis kit), and I have had not a single issue. They don't seem to care what coils I'm running, whether KW V2 or Clubsport, TC Kline race or so forth.

Also, as much as I think that strut braces are pointless 99.9 percent of the time, I have to say that the Rogue Race Brace up front and the UUC magnesium rear are an excellent finishingtouch! I ddon't know how much you would feel it on a more stockish suspension, but witha vvery stiff fully worked over one, they noticeably stiffen the chassis in turns and even hitting a bump at speed w just one side of the car is less disruptive. And to think, I only got them to ensure that the suspension geometry was staying as constant as possible and not deforming my towers!
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- TMS - OS Giken - SuperSprint - Vorsteiner - Recaro - Samco - Fluidyne - MORE! -
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- 2001 325i TiAg 5MT/ZSP/ZCW (Street)
- 2006 M3 ZCP AW/IR 6MT/ZCP/HID (Street)
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Old 10-30-2013, 12:47 PM   #15
Bino5150
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In race applications where every ounce counts, the weight savings of the hollow bars are great. However, although a hollow bar with a greater OD will have a better performance to weight ratio, it will not actually outperform a solid bar with a smaller OD. Of the exact same OD, the solid bar can actually be 50-100% stiffer than the hollow bar. (there is a formula for this, let me dig it up...) So a 25mm solid bar can potentially perform better than a 30mm hollow bar when cornering, unless you have a full race car and that extra 1.8-2.2 lbs makes a significant difference to you.

Like I said, upgrade the bushing and endlinks on a solid sport sway and see what happens... you would be surprised. And at about 1/10 of the cost of the Hotchkis set.
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