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Thread: Sway bars and NVH?

  1. #1
    Join Date
    Apr 2001
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    Where the hammers rung news cameras never come.NYC
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    Sway bars and NVH?

    I was expecting an increase in NVH with the addition of sways. To my surprise the ride quality seems to have improved. I'm running 500frt and 650rear springs. Does this make snese? or is my mind playing tricks on me?

  2. #2
    Join Date
    Jan 2002
    Location
    Santa Cruz, CA
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    1,595
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    2001 Porsche 911 Turbo
    M3 Racer............is that your street setup? Thats pretty wild as far as spring rates, what setup do you have? Thats good to know about the swaybars as I am getting some soon!
    -Alex

    "The noblest of ideas have always been protected by warriors."

  3. #3
    Join Date
    Mar 2002
    Location
    Wichita, Kansas
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    1,628
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    '99 BMW M3
    I didn't notice any change at all in general ride after I put my UUC sways on, so I don't think its just you. Car corners much flatter now, sways rock.
    http://www.dtmpower.net/ppost2/data/500/205dsc_3011_copy.jpg - this host does not allow image linking
    Pictures of my car

  4. #4
    Join Date
    Jul 2001
    Location
    Kansas City, MO
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    574
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    2002 BMW M5, 2003 Lancer Evolution

    Re: Sway bars and NVH?

    Originally posted by M3RACER
    I was expecting an increase in NVH with the addition of sways. To my surprise the ride quality seems to have improved. I'm running 500frt and 650rear springs. Does this make snese? or is my mind playing tricks on me?
    Ride quality can improve with the addition of sways. Most certainly you shouldn't notice it to have decreased.

    Think of sway bars (technically, "anti roll bars") as springs that only compress when the car rolls (i.e. tilts from side to side). The sways don't come into play at all when the car exerts force longitudally (front and back), only side to side. So you don't sacrifice anything in normal driving, and your car rolls less in the turns. Win - win situation

    Sways are one of the best mods you can do to a street car, in my opinion. Was the first thing I did to my (former) e46 328i, and they made a huge difference...

    UUC has some more details on what a set of sways does on their website, for anyone who might be interested in further reading. See "what's a sway bar" on this page: http://www.uucmotorwerks.com/html_pr...way_barbarian/
    ~jedinite
    <A HREF="http://bmw.jedinite.com" target="_blank">http://bmw.jedinite.com</A>

    <font size="-2"><i>currently drives:</i></font>
    <LI><font size="-2">2002 e39 M5 - - <A HREF="http://bmw.jedinite.com/M5" target="_blank">the autobahn cruiser</a></font>
    <LI><font size="-2">2003 Lancer Evo VIII - <A HREF="http://evo.jedinite.com" target="_blank">rally car / street racer</A></font>
    <font size="-3"><i>former cars include <A HREF="http://performify.com">a race-prep'd 1995 M3</A>, a 1987 528e, a <A HREF="http://bmw.jedinite.com/M3/">2001 e46 M3</A>, a 2001 Audi TT 225HP QC, a 2000 e46 328i, and a few Mustangs</i></font>

  5. #5
    Join Date
    Apr 2001
    Location
    Where the hammers rung news cameras never come.NYC
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    My Cars
    98m3, 03m3
    ///Mr. Three
    yea, its my daily driver.
    GC Track/school kit
    x-brace
    power flex frcab, Rtab
    UUc sways

    jedinite

    Aslong as both wheels are at the same height sways have effect. Which is fine for theoretical driving, but I live in a city where pot holes are neither small or uncommon. When one wheel hits a bump it essentially has the same effect as the car rolling, as in one side is more compressed than the other. Atleast that was my understanding.......

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