Track Side Chassis Adjustments
Tight or Under steering Front tires fail to grip Move Right Rear tire out Decrease cross weight (LR+RF lbs.) Increase Front axle lead Raise entire rear of car Softer tire compound front tires Decrease right front spring rate Increase right rear spring rate Raise rear Panhard Bar on frame side Increase air pressure rear tires Increase stagger rear tires Narrow the front end Harder compound on rear tires Add Tilt to the Chassis ½ turn out on the Left Rear and Left Front adjusters
Loose or Over steering Rear tires fail to grip Move Right Rear tire in Increase cross weight (LR+RF lbs.) Reduce Front axle lead Lower entire rear of car Softer tire compound rear tires Increase right front spring rate. Decrease right rear spring rate Lower rear Panhard Bar on frame side Reduce air pressure rear tires Reduce stagger rear tires Widen the front end Harder compound on Front tires Reduce Tilt to the Chassis ½ turn out on the Right Rear and Right Front adjusters
Adjusting for Less Grip Harder tire compound Right Front and Right Rear Add Tilt to the Chassis ½ turn out on the Left Rear and Left Front adjusters Raise the Front and Rear Panhard Bars Equally Stiffer Right Front and Right Rear Springs 10 lbs at a time
Adjusting for More Grip Softer tire compound Right Front and Right Rear Take Tilt out of to the Chassis Lower the Front and Rear Panhard Bars Equally Softer Right Front and Right Rear Springs 10 lbs at a time
Car Loose at Corner Exit Reduce stagger rear tires Raise the Front ride Height Move the Right rear tire in. Softer tire compound Right Rear Increase Right front and left rear Corner Weights
Bicycling Left side tires lose contact with the racing surface More overall left side weight % Harder tire compound (mainly RR) More air pressure Widen car Add stagger to rear
Basic Chassis Set-up Weight Distribution 53-55% left side weight (LR+LF/total car weight multiplied by 100=left side %) 51-53% cross weight (LR+RF/total car weight multiplied by 100=cross weight %) 41-43% nose weight (LF+RF/total car weight multiplied by 100=nose weight %) 3/8-1" rear stagger 3/8-1" front stagger (use front stagger to increase cross weight %) 55-70 durometer tires (grip of tires--can vary)
|