High Performance Track Handling
The set up of your car can make a big difference to its driveability, and ease of control. The chart below shows a guide to how changes to your car' s set up may change its balance.
Oversteer is when the rear of the car loses grip before the front of the vehicle in a cornering situation. Understeer is the opposite; it is when the front of the vehicle loses grip before the rear of the vehicle. To the driver understeer feels like the vehicle is resisting turning into the corner. The best cornering attitude is a neutral steer where the tyres are achieving optimum performance.
Note, tyre pressure is a major consideration in tuning the handling of your car, especially when suspension adjustments are limited. When increasing or decreasing tyre pressures use 2 psi steps for best results.
Warning, carrying out any of the following adjustments to an extreme may magnifying the problem you are attempting to correct. For example, one way to reduce understeer is to increase front tyre pressure. If you add too much pressure, you may create an even greater understeer problem, as less tread will contact the road surface providing less cornering ability
Adjustment To Decrease Understeer To Decrease Oversteer
Front Tyre Pressure Higher
Lower
Rear Tyre Pressure Lower Higher
Front Tyre Width Larger Smaller
Rear Tyre Width Smaller Larger
Front Wheel Camber More Negative More Positive
Rear Wheel Camber More Positive More Negative
Front Wheel Alignment Toward Toe-Out Toward Toe-In
Rear Wheel Alignment Toward Toe-In Toward Toe-Out
Front Wheel Caster More Positive More Negative
Front Springs Soften Stiffen
Rear Springs Stiffen Soften
Front Anti- roll Bar Soften (Thinner) Stiffen (Thicken)
Rear Anti- roll Bar Stiffen (Thicker) Soften (Thinner)
Weight Distribution More Rearward More Forward
Wet conditions:
When there is a risk of aquaplaning, try increasing tyre pressures by 2psi to 8psi (depending on the conditions). Tyre deflection is reduced, and the rounder profile created helps to prevent the wedge of water building up between the tyre and the road surface, thereby improving traction.
PS This looked fine on Preview!! If anybody wants original, let me know and can e-mail it as an attachment.
The set up of your car can make a big difference to its driveability, and ease of control. The chart below shows a guide to how changes to your car' s set up may change its balance.
Oversteer is when the rear of the car loses grip before the front of the vehicle in a cornering situation. Understeer is the opposite; it is when the front of the vehicle loses grip before the rear of the vehicle. To the driver understeer feels like the vehicle is resisting turning into the corner. The best cornering attitude is a neutral steer where the tyres are achieving optimum performance.
Note, tyre pressure is a major consideration in tuning the handling of your car, especially when suspension adjustments are limited. When increasing or decreasing tyre pressures use 2 psi steps for best results.
Warning, carrying out any of the following adjustments to an extreme may magnifying the problem you are attempting to correct. For example, one way to reduce understeer is to increase front tyre pressure. If you add too much pressure, you may create an even greater understeer problem, as less tread will contact the road surface providing less cornering ability
Adjustment To Decrease Understeer To Decrease Oversteer
Front Tyre Pressure Higher
Lower
Rear Tyre Pressure Lower Higher
Front Tyre Width Larger Smaller
Rear Tyre Width Smaller Larger
Front Wheel Camber More Negative More Positive
Rear Wheel Camber More Positive More Negative
Front Wheel Alignment Toward Toe-Out Toward Toe-In
Rear Wheel Alignment Toward Toe-In Toward Toe-Out
Front Wheel Caster More Positive More Negative
Front Springs Soften Stiffen
Rear Springs Stiffen Soften
Front Anti- roll Bar Soften (Thinner) Stiffen (Thicken)
Rear Anti- roll Bar Stiffen (Thicker) Soften (Thinner)
Weight Distribution More Rearward More Forward
Wet conditions:
When there is a risk of aquaplaning, try increasing tyre pressures by 2psi to 8psi (depending on the conditions). Tyre deflection is reduced, and the rounder profile created helps to prevent the wedge of water building up between the tyre and the road surface, thereby improving traction.
PS This looked fine on Preview!! If anybody wants original, let me know and can e-mail it as an attachment.
