Tom;
A "sway bar" is an anti- roll bar-- it increases the roll stiffness of the
end of the car that it is mounted on. If you have a car with very stiff
springs and little suspension travel the anti- roll bar probably won't be
worth adding.
On a "normal" car the anti- roll bar is used to tune the handling of the
car; it makes a big difference whether the bar is mounted on the front or
rear.
I wouldn't use the bump stops as a rule-- when the suspension hits the
stops, the spring rate suddenly goes way up and this can upset things
dramatically.
Regards, Neil Tucson, AZ
-----Original Message-----
From: land-speed-bounces@autox.team.net
[mailto:land-speed-bounces@autox.team.net] On Behalf Of tom sarda
Sent: Saturday, November 22, 2008 7:52 AM
To: land-speed@autox.team.net
Subject: [Land-speed] Fw: sway bar
--- On Sat, 11/22/08, tom sarda <sardatech@yahoo.com> wrote:
> From: tom sarda <sardatech@yahoo.com>
> Subject: sway bar
> To: landspeed@autox.team.net
> Date: Saturday, November 22, 2008, 6:45 AM
> Hey,list, I need opinions. Is sway bar on front suspension a
> necessity on the streamliner I'm building? Will bump
> stops provide the stability? The front suspension is
> comprised of a straight axle 30 inches from king pin center
> to center mounted with four link to the chassis. Will a sway
> bar on the rear suspension provide the same effect as on
> the front? The Springs on the rear are 650 lbs and on the
> front are 600 lbs. Suspension travel is quite limited in the
> shop when you stand on the chassis and try and bounce it.
> There is some side to side roll. I mean very small side to
> side. The width of the front is 45 inches spindle to spindle
> and 44 inches at rear axle outside end to end. Wheel base is
> 201 inches. Aint a whole lot of room up front for a sway bar
> but could be managed.
> If at speed the nose drops to the bump stops essentially
> eliminating all movement but there is still travel in the
> rear suspension will that be a good situation? What if
> softer springs at all four corners and bump stops at all
> four corners were in place and the down force forced the
> body to the stops, would that be a good or manageable
> situation?
> I appreciate your opinions and toughts.
> Tom
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