Using stock 4kq front sway bar as a rear bar

Larry C Leung l.leung at juno.com
Thu Jan 10 19:33:55 EST 2002


welding the bar will not allow it to transfer loads from one side to the
other, it'll just transfer suspension loads to the frame itself,.i.e. the
welded anti-roll bar will essentially become a half leaf spring. This is
not what you want to do....

LL - NY

On Wed, 9 Jan 2002 15:12:23 -0800 Brian Devlin <bdevlin at stanford.edu>
writes:
>Maybe you could just put really soft bushings on there to reduce the
>effective stiffness. Or attach the bar to control arms inboard of the
>normal location? I'm sure there are many ways to modify the
>stiffness. Just don't weld the bar to the frame; I'm pretty sure
>that's a bad idea.
>
>Here's another thing to think about: some off roaders use a bar
>that's split in the middle and uses a sleeve to connect/disconnect
>the two halves. If you could rig that up, and control it with a
>vacuum servo (tied into the diff locks?) then you could soften up the
>rear when you need extra traction. Wait...don't do that...I have to
>patent it first.
>-Brian
>
>>Mihnea Cotet wrote:
>>
>>>  If you've seen Blau's bar, then you've prolly noted that their bar
>has 22mm
>>>  in diameter...a 4kq's bar has 26, which is too extreme and I won't
>be
>>>  surprised if your car were TOO tail happy!
>>>  You want to find a CGT front bar (22mm) and ditch the 26mm one,
>it's too
>>big!!!
>>>
>>this is an interesting point, torional stiffness goes as r^4, so 4mm
>makes a
>>difference. That said the 26mm bar works great on my car. I am not
>running
>>lowering springs, but I have put the front springs in back and
>stiffer fronts
>>(from an 80q) The bar has been on there since summer and I have yet
>to have a
>>problem. I have seen some oversteer but nothing that was too hard to
>control.
>>On wet on-ramps I can get a little neutral drift if I push it but
>>again nothing
>>more. I suppose really stiff rear springs might make it more of a
>>problem, but I
>>can't imagine the difference would be that great between what I am
>running and
>>standard lowering springs. (I could be wrong, does anyone have
>experiece with
>>thick bars and lowering springs?)  maybe combined with really wild
>>alignment or
>>bad tires?
>>
>>you can read about my set-up in a post from last summer
>>http://www.audifans.com/pipermail/quattro/20010917/034100.html
>>
>>and see pictures here:
>>http://www.engr.orst.edu/~rickert/Audi.html
>>
>>Luke
>



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