Question for sway bar/suspension Guru's, show me your sway bars |
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Question for sway bar/suspension Guru's, show me your sway bars |
rick 918-S |
Mar 12 2005, 07:33 AM
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#1
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Hey nice rack! -Celette Group: Members Posts: 20,473 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
My car has a push at high speed in tight corners. (IMG:http://www.914world.com/bbs2/html/emoticons/driving.gif) It wants to slide the front to the outside of the circle. I need to increase front grip. I was talking to a local car guy here and he told me I should has a big rear sway bar. (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) I tend to believe him. (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) He used to work for the Archer Brothers in their race shop. (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) But maybe his theory doesn't apply to middle motor cars. (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif)
Who has experience with this? Show me your sway bars. Specially rear ones. Oh ya, what about tire pressure. I encourage long explainations. But talk to me like I'm a 4th grader. (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif) |
gaz914 |
Mar 12 2005, 04:33 PM
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#2
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Member Group: Members Posts: 67 Joined: 6-March 04 From: Sydney, Australia Member No.: 1,758 Region Association: None |
To complicate the matter a little more for you Rick, understeer can often be cured by adding a front sway bar - contrary to the advice above.
The reason is to do with the camber change that happens due to the body roll when cornering. Particularly with wider tyres, the tyre no longer sits "flat" on the road when the body rolls excessively and of course the grip generated is less. By adding a sway bar to the front, the camber change may be limited to such an extent that the actual grip generated is better than before, despite the added weight transfer that should make less grip. That is: PLUS grip via less camber change > MINUS grip via weight transfer. If the front bar is too large (in combination with the spring rate) then more understeer may be the result. In your situation, I would consider trying a small-ish (standard?) sway bar for the front first to control the body roll/camber change. If the understeer is not reduced sufficiently or is worse, then a rear bar would be needed, experimenting with and without the front bar connected. GAZ |
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