dirt late model setup tips

Late Models: Modifieds: CJ Rayburn Late Model Swing Arm Setup Sheet: Dirt Works Setup Sheets (Updated!) I don’t know if I ever measured the centerline on the front wheel and the centerline of the rear wheel to figure how much roll steer I get in the car. Picture a centerline down the middle of the car from nose to tail. Larry Shaw 2000 Late Model Setup Sheet: Larry Shaw 2000 Mod Setup Sheet: GRT Late Model General Setup Sheet: GRT Modified 0-199 Chassis Setup Sheet: GRT Late Model Dry Slick Setup Sheet But they are trying to trick their competitors to changing their cars as well.”Whether you are bluffing or not, carefully adjusting rear steer can be the difference between fast laps or fighting an ill-handling race car.Build your own custom newsletter with the content you love from OneDirt, directly to your inbox, absolutely FREE!We'll send you the most interesting Street Rod articles, news, car features, and videos every week.We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. This setup has seven gallons of fuel.Here's a Pro Late Model setup for Volusia Speedway 2018 Season 4. It's no wonder that the pole car seldom wins.The routine for setting up a dirt car should start in the shop. Graphic from AFCO Racing.A double-shock right rear setup. iRacing Dirt Late Model J-Bar Adjustments: Raising the j-bar on the chassis and lowering the j-bar on the axle is known as increasing the rake. "They want to know more about how their cars work. The higher the banking, the farther the moment center can be located to the right in the car. It is so specialized and the techniques have developed so much over the past five years or so that it is time to spill the beans on what is working and why.Setting up a dirt car is complicated, not only by the fact that the surface is difficult to work with, but mostly by the way it is constantly changing. You control that with your shock valving, or where you’ve mounted the suspension bars in the car, and what angle they are.”There are limits to the amount of rear steer which you can run in a car. For this reason, we need to run a much lower amount of LR weight with a three-wheel setup.We can change the characteristics of our dirt tires by understanding how the conditions of the track, at any given moment, affect the surface rubber on the tire. Think of the effect at 60-80 mph in the turns.So if we agree that there is a low pressure effect and with it some amount of downforce, we might try to utilize that effect to our advantage. “On a late model or modified, a standard right rear spring will be 200 or 225.

Birkhofer says his team is working to make the car more balanced, learning the exact location of the moment center design. We generally relate high crossweight, or LR weight, with improved traction, but that's not always the case.

“The only things I adjust in my race car [at the track] is fuel load, offset, and stagger. The shock controls both, but obviously must do much more work in the rebound mode.LR weight refers to the number of pounds of weight supported by the left-rear wheel versus the weight supported by the right-rear (RR) wheel. Translated to road course driving, "left" when referring to the position of a part on a car means "inside" and "right" means "outside". Decreasing the angle on the lower trailing arm will tend to tighten the car on entry and exit under loose conditions, while increasing angle will loosen the car up under tight conditions.Merritt explained how he typically sets up rear steer in his cars. A team must anticipate the conditions it will encounter at the next track it plans to race. It seems to me the biggest problem people have with their cars is getting the cars to turn well and still get enough traction. The movement of the LR wheel is much less offensive in nature.In the long run, if we expect a fighting chance at winning, we must learn to react.