When trying to decide if the Dri-Bar system can help your racing program, you must first look at a couple of areas:

1) With the traditional system, the right rear torsion bar is required to do two jobs:  1. Support the car from going down; 2. Keep the car from rolling.

If it’s stiff enough to do both jobs, it’s stiffer than it needs to be to hold the car “up”, and in doing that it hurts forward drive, and reduces your lap times.

2) The last thing you ever want to do is let the car “unload” the left rear tire and reduce its ability to drive the car forward.  But when running a car without the benefit of the Dri-Bar, as the track dries out, you would typically reduce the left rear rebound to reach the amount of side bite you want with the right rear tire.  When you do that, you allow the car to unload the left rear tire and hurt your drive off of the corner.

Everything you adjust should be an attempt to achieve what you might call a “balance” - the amount of weight on each tire to drive the car forward.

When you have too much weight on the right rear tire, it wants to go past the left rear, and the car gets loose.  When you have too much weight in the left rear tire, it wants to pass the right rear tire and, thus, the car will be “tight” or “push.”

Benefits of the Dri-Bar

1) The first benefit of using the Dri-Bar comes on corner entry.  With its ability to “resist roll” it allows you to be more aggressive on corner entry, while keeping the car flatter and reducing the chances of getting up on two wheels or as we would say being “tippy.”

As a racetrack dries out, you will need the left rear tire to do more work.  But, to do that, it needs weight on it.

Here’s where the Dri-Bar does its second job:  When the car tries to transfer weight from the left to the right as it goes around a corner, the rate of the Dri-Bar RESISTS that transfer.  By resisting the transfer, when you are ready to exit the corner, you have kept more weight on the left rear tire, thus allowing it to drive that much harder.

2) The next benefit is a simple function of how the Dri-Bar helps by unwinding. When you enter the corner and the car rolls to the right it winds the Dri-Bar up in the process. Once you have reached the apex of the corner the Dri-Bar begins to “UN-WIND” and puts the car back onto the LR to drive OFF the corner much Harder. There is NO other part or suspension component that provides this benefit.

3) A major benefit of the Dri-Bar comes in the form of a cockpit adjuster (allowed by most sanctioning bodies).  With the Dri-Bar adjuster, you can make an in-cockpit adjustment during the race that is similar to that of a .025 right-rear torsion bar change at the simple flick of your wrist.

If you happen to have a Sanctioning body that doesn’t allow the cockpit adjuster simply mount the unit at the rear of the car and allow the mechanic to make a last minute adjustment before you push off or during an Open RED Flag situation.

We suggest you start the evening with the adjuster handle in the center position, when you add fuel for the Feature, you should pull the handle back to stiffen the rate for the added LOAD.