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. … A tight race car doesn’t seem able to steer sharply enough through the turns. Instead, the front end continues toward the wall.
How do you tighten a loose race car?
Change rear spring rates. Softening the right rear spring, and/or stiffening the left rear spring will increase the rear roll angle and will tighten the car, as will softening both rear springs. The inverse is true, stiffening the RR spring and/or softening the LR spring will loosen the car.
What does it mean in Nascar when a car is loose?
When a driver says his car is loose, also known as oversteer, it means that the car has poor rear traction, causing the car to fishtail toward the wall. … If the race vehicle is tight coming off a corner, a driver might request a slight air pressure increase in the right rear tire to loosen it up.
Why do race cars wiggle?
During a race, a lot of debris (such as rubber) gets kicked up to the high side of the track (groove). When a caution is out, the tires are still hot and can collect that debris (nicknamed “marbles”), which can make them very slippery. The wiggling is done to get rid of the marbles.
Does understeer mean loose?
TIGHT: Also known as understeer. This occurs when the front wheels lose traction before the rear wheels. It causes the stock car to have trouble steering sharply and smoothly through the turns as the front end pushes towards the wall.
How do you loosen a car entry?
Cars that are loose on entry nearly always push in the middle as the driver simply is unable to aggressively turn the steering wheel at the right time.
Stay with changes that make a significant difference.
- Less front spring rate.
- More rear spring rate.
- Less sway bar or sway bar load.
- Raise the panhard bar.
- More stagger.
What does adding wedge to a race car do?
Wedge adjustment can make a dramatic difference in how a race car handles during a race. Specifically, wedge adjustment refers to changing the amount of tension on a spring in the rear suspension. … These openings allow the crew easy access to tubes that go directly to springs in the suspension system.
Is drifting allowed in Nascar?
Why don’t NASCAR drivers drift? Drifting is by no means faster. If you’re asking why they don’t intentionally drift, then it’s because drifting is slower and won’t help them. If you’re asking why the cars aren’t forced into a drift by the turn, it’s because the cars have a large amount of grip.
Is understeer tight or loose?
TIGHT: Also known as understeer. This occurs when the front wheels lose traction before the rear wheels. It causes the stock car to have trouble steering sharply and smoothly through the turns as the front end pushes towards the wall. LOOSE: Also known as oversteer.
Why do Nascar drivers drive close to the wall?
Being next to the wall has another advantage: if you either overstep traction or lose a tire, you won’t be hitting the wall as hard. From some limited dirt track experience, I can tell you it’s also quite a rush being up there, since the sensation of speed is greater with the wall’s proximity!
What does it mean when a Nascar driver puts his hand out the window?
When a NASCAR driver sticks his or her hand out the window, they are either trying to deflect some fresher air into the car or trying to communicate with someone.
Why does race car sway side to side?
NASCAR drivers swerve during a caution to remove debris from their tires. … Swerving back and forth during the caution lap while their tires are hot keeps their tires clean of marbles during the pause in racing. This is to ensure no burn outs when the light goes green, which could be catastrophic.
Why are F1 cars zigzag?
Formula 1 cars zig zag for multiple reasons. The main reasons for the swerving include heating the tires and brakes during the formation before race start, cleaning the tires of any debris picked up on the track, and to reduce weight by burning extra fuel. Swerving during a race blocks other cars.
What’s the difference between oversteer and understeer?
Understeer occurs when the front wheels start to plow straight even if you turn the steering, and oversteer occurs when the back of the car is being fishtailed.
What is Nascar Heat 5 wedge?
Wedge makes the car looser or tighter. A loose car is better on the short runs but a tighter car is better for long runs. If you want a tighter car, up the wedge ; a looser car, decrease the wedge.