Anti Roll Bar Stiffness

While our pro kit and sportline spring sets are regarded as the primary suspension enhancement components the eibach anti roll kit allows critical fine tuning of your car s handling characteristics.

Anti roll bar stiffness. There are two main equations required to calculate the stiffness of an anti roll bar. First the roll bar needs to be recognised as three separate parts. Stiffening one of the sway bars on a car will cause that end to be more likely break loose in response to transients. Typically a front wheel drive car will handle better with a rear sway bar that is stiffer than the oem piece.

A stiffer front sway bar on a rear wheel drive car will reduce oversteer. In one wheel bump the anti roll bar is twice the length of the half length torsion bar and is therefore only half as stiff in twist. At a high level the sway bar acts as a spring just like any other. And after a rebuild set raxles insane shafts i went back to brand new oem.

Rear wheel drive rwd cars. The only thing i am hell bent on staying oem are axles. The progress bar was the first suspension mod i did to the car. Typically a rear wheel drive car will handle better with a front sway bar that is stiffer than the oem piece.

A torsion anti roll bar is incorporated into the suspension of a vehicle to enable low rate soft springs to be used which provides a more comfortable ride under normal driving conditions. Bolt torque inch. Because an anti roll bar connects wheels on opposite sides of the vehicle the bar transmits the force of a bump on one wheel to the opposite wheel. The whiteline bars which are available separately give you more freedom of choice depending on what you need from your car.

If we now a have the top torsion bar working as an anti roll bar the roll stiffness is the same yet in one wheel bump suspension stiffness will be less. I am on my 4th pair. Here is the link to that sway bar. A stiff anti roll bar combination will keep the wheel closer to it s optimum angles.

You can disassemble the sway bar problem by considering a piece at a time. If you are designing your own anti roll bar or have a relatively simple shape roll bar then it is often more accurate to calculate the bars stiffness. The ultra racing front bar was super expensive but what isn t expensive lol.