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04-02-2010, 12:37 PM | #1 |
Drives: 2010 Black 3dr Lift Back Join Date: Nov 2008
Location: California
Posts: 62
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Front Sway Bar
Anybody have a front sway bar on the hatchback? I've been autocrossing a lot lately and want to get rid of some understeer.
My current set up is DF210s, Tokico HP's, 23mm Ultra racing rear bar |
04-02-2010, 01:57 PM | #2 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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Try disconnecting the front bar from the control arms first and see how that goes.
Edit: sorry, disconnect from the struts on the Yaris I believe. You want less front sway bar if you have understeer. |
04-02-2010, 05:49 PM | #3 | |
Start another Oil Thread!
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what are your alignment specs? a larger front swaybar is going to INCREASE understeer.
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04-23-2010, 07:50 PM | #4 |
Drives: 2007 Yaris HB Join Date: Apr 2010
Location: New Jersey
Posts: 25
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Um, I'm pretty sure that a larger front sway bar increases oversteer and a larger rear sway bar increases understeer.
*edit* Ah, you're right: "Understeer or oversteer behavior can be tuned out by changing the proportion of the total roll stiffness that comes from the front and rear axles. Increasing the proportion of roll stiffness at the front will increase the proportion of the total load transfer that the front axle reacts and decrease the proportion that the rear axle reacts. This will cause the outer front wheel to run at a comparatively higher slip angle, and the outer rear wheel to run at a comparatively lower slip angle, which is an understeer effect. Increasing the proportion of roll stiffness at the rear axle will have the opposite effect and decrease understeer." |
04-23-2010, 08:31 PM | #5 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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The Yaris likes a bigger front sway bar a lot. I know on paper it makes a car understeer more, but the reduction of excessive rolling helps the front end stick better in this case.
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Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific. |
04-23-2010, 08:34 PM | #6 | |
1st mod project at 35
Drives: 2008 Yaris Join Date: Apr 2010
Location: Jackson WI
Posts: 19
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04-24-2010, 05:50 PM | #7 | ||
Start another Oil Thread!
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totally different
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