Table of Contents
What is cross when scaling a race car?
Cross-weight percentage compares the diagonal weight totals to the car’s total weight. To calculate cross-weight percentage, add the RF weight to the LR weight and divide the sum by the total weight of the car.
What is bite when scaling a car?
Most dirt teams refer to the amount of “bite” or “left-rear weight” in the car, which is the number of pounds of weight that the LR tire supports over the right-rear (RR) tire.
What is wedge in a race car?
The diagonally related weight between the left-rear and right-front wheels is referred to as cross-weight or simply wedge. It is often measured as a percentage of the vehicle’s total weight. When more than 50 percent of the car’s weight is on the left-rear and right-front wheels, the car is said to have more wedge.
What is a balanced race car?
If the centre of gravity is rearward of the midpoint between front and rear axles e.g. mid-engine race cars, then b is less than a. The rear moment has a proportionally longer lever arm than the front. So, for the car to be balanced we have the opposite of the front heavy car.
How do you put a cross on a race car?
If you want to add cross weight put a turn in the right front and left rear and take a turn out of the left front and right rear. On non coil over cars you may need to go two turns on the rear for every one turn on the front. By adjusting all four corners you will help maintain your ride heights.
What is the best weight distribution for a car?
The “ideal” weight distribution is 50/50: The vehicle has the same weight on both the front and rear axles. Truth: While most sport-oriented cars do have weight distributions close to 50/50, there’s much more to proper handling than just distribution.
How do you adjust the corner weight of a race car?
To add weight to a given corner, raise the ride height at that corner or lower the ride height at an adjacent corner. For example, if your initial setup is 52 percent cross-weight, and you want 50 percent cross-weight, lowering the right front or left rear corner will decrease cross-weight percentage.
What is wedge in a dirt race car?
Wedge is the offset balance within your tires of your car. These include the rear bite on a dirt track car, the wedge, the rear weight, the spring rate, the left weight, and the tracking of the wheels.
How do you increase side bites in a dirt track car?
To give the car more lateral traction, go to a softer right rear bar or a stiffer right front spring. A stiffer left rear bar will have two effects: raising the car (higher CGH), and adding static left rear weight.
What is forward bite?
Foward bit is straight line traction (think dragrace). Side bite keeps tires from sliding sideways in a corner. The front can push and you will not turn very well. If the rear slides you can end up spinning around.
What does it mean when a NASCAR is loose?
Loose: Also known as “oversteer.” When the rear tires of the car have trouble sticking in the corners. This causes the car to “fishtail” as the rear end swings outward during turns.
What is NASCAR tape?
Tape is used as an aerodynamic tool in NASCAR, as well as a repair device. If you look at pictures of the cars, you’ll see the grille openings on the front. Teams will cover these with tape to improve aerodynamics and increase speed. If you watch qualifying, you’ll see the openings are completely covered.
Do I need to corner balance my car?
To measure the current weight and balance of the car requires scales. It’s absolutely critical that the scales are perfectly level. Corner balancing your car on an uneven surface is possibly worse than not corner balancing it at all. If not, as long as the car is at the same ride height left to right, you should be OK.
Is Corner balancing necessary?
The tires bearing more weight will wear out faster. If you have installed a height-adjustable suspension, you absolutely should corner-balance the car, even if it’s just a street vehicle. If you don’t corner balance it, you have literally no idea how the weight is distributed.
What is corner weighting a car?
Corner weighting (or balancing) involves adjusting a cars suspension to achieve an even weight distribution across the diagonals of the car, and if possible left to right. However we also take into account the driver’s and passenger weight to simulate how the car would be used on-track.
What is the best weight distribution for drag racing?
Typical values for front-engine, rear-drive cars are 55-51 percent front/ 45-49 percent rear.
How is car weight distribution calculated?
Multiply the center of gravity distance times the weight to get the moment for each component and item. Add all of the moments and divide by the wheelbase to get the weight on the rear axle. Subtract the rear axle weight from the total weight to get the front axle weight.
How much does it cost to corner balance a car?
Even on street cars, a proper corner balance can deliver a more balanced, neutral feeling car. This can help increase performance, allow the owner to drive the car more confidently, and reduce component wear. Corner balancing packages begin at $300.
