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Date:         Tue, 9 Apr 2002 08:47:15 -0400
Reply-To:     Gary Stearns <gstearns@OPTONLINE.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Gary Stearns <gstearns@OPTONLINE.NET>
Subject:      Re: Benefits of a rear sway bar?
Comments: To: Joe Tu <joetu@PACBELL.NET>
Content-type: text/plain; charset=iso-8859-1

I haven't installed one yet, but I'm researching it right now. The only source that I know of is ADDCO. http://www.addco.net/ . I'm considering making my own out of chromoly tubing and adjustable arms.

You're question "does it help to keep the rear wheels planted when cornering hard?" sort of misses the point. In pure theory an anti-roll bar will actually cause the inside rear wheel to lift and spin in a hard corner. The advantage is that a rear a/r bar will shift the "roll-couple" or roll resistance to the rear wheels, causing the rear wheels to carry more of the cornering load. This takes this roll resistance load off of the front wheels allowing them to turn the van more effectively. In practical terms, you'd be shifting the van's designed-in tendancy to understeer (plow), toward a tendancy to oversteer (spin-out). If done moderately leaving the van's cornering balance closer to the neutral range, this shift can make for a fast vehicle in the corners.

One caution though; from the factory VW set up the Vanagon with a lot of understeer for safety reasons. With the engine in the rear, a shift of the roll-couple to the rear can create a situation where the van tries to spin-out at the worst possible time (in a fast corner, realize you're going too fast, take your foot off the gas...there she goes, your in the trees butt first). Test your setup a lot before you trust it. A wet, smooth, empty parking lot is a great place to try to lose the rear in a corner just to find out how easily it happens.

Get it right, and your Vanagon will be a lot more fun.

Gary ----- Original Message ----- From: "Joe Tu" <joetu@PACBELL.NET> To: <vanagon@GERRY.VANAGON.COM> Sent: Tuesday, April 09, 2002 4:33 AM Subject: Benefits of a rear sway bar?

> Anyone who has one installed give me some feedback on this, does it help to > keep the rear wheels planted when cornering hard? Where does it mount > exactly and who makes these for vanagons? > > TIA! > > Joe


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