mal_tiempo

What do these do? And whats the difference between them and Anti-roll bars? I hear about both but I'm still confused

 

mdhimes

As far as I know the terms sway bar and anti-roll bar are interchangable. They reduce body roll durring cornering. In essence they basically put a little dependence in the independent front and rear suspension.
Picture this, you are stepping on one side of a sway bar and a friend twists the other. You will feel your end twist a little too. This twisting motion basically ties the left and right suspension together. So when there is more suspension compression on one side a force(from the twist of the bar) is created that compresses the other side helping to reduce bodyroll and promote a stable line through a corner.

R0b_

a semi-hijack here, but if you had the whiteline control brace, is this the same as a beefy front sway?

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reverm

Not quite. Control arm braces and underchassis braces (like the whiteline control brace, the Nismo tie brace, the Shigspeed control arm brace, etc) tie the control arm joints to eachother. Anti-sway bars tie the bottom of the dampers together. They won't have the same effect as an anti-sway bar because the primary function of the control arm joints is not to move up and down (like dampers). Instead, it will stiffen the front end of your car, which will allow the suspension system to work a whole lot better.

From a practical point of view:
You can't go too stiff/large with an underchassis brace, but it is very easy to go too stiff/large with an anti-sway bar.

Slartibartfast

anti-roll bar = anti-sway bar = sway bar.

It is a (1) weight-transfer device and (2) anti-roll device.

(1) Faster weight transfer during transient conditions improves steering feel and quickens the maneuver.

(2) It resists the differential movement of the control arms so that cornering attitude is flatter. Not flat, just flatter.

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1990 Acura Legend LS, stock (so far)
1994 Nissan Sentra SE-R (original owner) w/ $tuff, converting to ITA (even more $tuff)
1998 Suzuki Bandit 1200S w/ $tuff, W.W.B.O.C. #101
2002 Dodge Dakota tow beast, stock!
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mal_tiempo

Thanks you guys. Always been wondering about that.