![]() In order to set up the preliminary stagger, Bickel suggests you place the car on a flat level surface and measure from the ground to the centerline of the wheelie bar wheels (see image below). This will help to steer the car in a straight line on the launch. The solution is to use wheelie bar stagger to compensate for the sudden loading of the right rear tire. If you do, then that pre-load will have an effect upon the car further down the track, with the result usually being a car that wants to steer itself off center. As Bickel notes, these forces are a result of the sudden acceleration of drivetrain components, and they typically fade away after launch.Īs a result of these initial forces, you shouldn’t attempt to make the car launch straight with four-link pre-load alone. ![]() That’s because there are additional forces caused by inertia that occur only at the launch. Well known chassis-builder Jerry Bickel points out that the chassis pre-load (on a four-link suspension, for example) isn’t sufficient by itself to create a straight launch on a high-horsepower car. Typically, wheelie bar setup is one of the last things you attend to when base-lining a chassis and is usually done after adjusting the chassis preload. ![]() The most common setup is a dual wheel axle mount.Īnd that’s the primary target we’re aiming for here. There are multiple configurations, including body mount, axle mount, dual wheel, single wheel, and so on. Wheelie bars have been around drag racing for what seems like forever. The solution is, of course, the wheelie bar. Nosebleed wheel stands are the poster children of drag racing.Įveryone likes to see them, but for the most part, they’re not all that conducive to running a low ET or even making a straight lap down the quarter mile.
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