The softer sidewall will flex a little more slowly, allowing you a little more time to feel what the tire is doing. A poor wheel alignment can also contribute to understeer. A: If you keep sliding forward and only stop thanks to a tree, yeah, its bad. This change will reduce the amount of weight on the inside rear tire giving it a better chance of unloading. UUC swaybars set to full stiffI think this is because the difference from stock in thickness of the front bar is much greater than the difference in the rear. The racecar had been well balanced at the previous track. There are simply too many variables for a one size fits all solution to tuning a car, and tire pressures are no exception. Understeer, sometimes called plowing, occurs when the vehicle doesnt turn as much as a driver expects based on the movement of the steering wheel. Understeer, however, isnt just a racecar driver dynamic, as civilians also know this feeling whenever they take a corner a little too hot or they turn the wheel during a snowstorm or heavy rain and nothing happens. Your warm up has gone well and you are now starting to press on to see what kind of lap time you can achieve. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. FAQ: How to reduce understeer - NASIOC Russin is co-founder and president of Active Lifestyle Vehicle of the Year, an annual competition. Thanks in advance for your recommendations! Avoid sliding the tires, locking up the wheels under braking and drive as smooth as possible. Since we know that understeer is a result of the front tires losing traction with the road, the best way to avoid it is to drive in a way that does not causes this to happen in the first place. Have your wheels and tires rotated and aligned when necessary. To semi-quote, it will do little more than make your car "dance around" more, which does nothing to achieve what should be your goal of getting power to the ground. They will both remove traction, but they will usually result in a different feel to the driver. Widen the rear track out as much as possible. Conversely, if your car is oversteering, you'll want to adjust front tire pressures to remove traction and balance the car. To Reduce Understeer or Increase Oversteer Front tires: Increase tire pressure in 2.5psi increments . While there are many variablesincluding weight, tire compound, and whether the vehicles has all-wheel drivetire pressures can make a big difference in winter drivability, Knox said. reducing understeer on the A6 - Audizine In attempt to lessen oversteer, Knox lowered the rear tire pressure by an additional 5 psi, while leaving the front tires alone. Make your adjustment to the rear tires. Again same as #1 we are trying to get more flex in the rear of the kart. So all we can really do is remove grip. What it actually felt like was the tyre was folding-in under itself when you did this. When we found our sweet spot, that was on a particular surface at a particular temperature. Sign up to get the latest performance and luxury automotive news, delivered to your inbox daily! What Tire Air Pressure Do I Use For Track And Autocross? The car we run has a front anti-roll bar (sway bar) so that might have been the logical thing to soften off and try. If you do find your vehicle understeering, you should try to correct the situation by easing off the throttle and gently brake to reduce your speed to allow the tires to regain grip with the road. Tuning for Oversteering & Understeering | MORPCA For years I have been taking a few PSI out of the rears in games like GPL and NR2003 and assuming that this was helping me to tame the oversteering beast. Remember that while the above steps can help minimize the risk of experiencing understeer, it's ultimately up to you as a driver to remain vigilant and practice safe . If adding pressure makes the car too nervous, try REMOVING pressure to take the tire away from the sweet spot.
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