Quote:
Originally Posted by wparsons
Why do people keep running stiffer springs up front? Do they even look at the geometry before making decisions?
The effective wheel rates put that as incredibly front biased, it must understeer like crazy at turn in.
12.5 * 0.95^2 = 11.3kg/mm at the front wheel
10.2 * 0.75^2 = 5.7kg/mm at the rear wheel
if you flipped the springs front to rear it's still front biased, but not nearly as bad:
10.2 * 0..95^2 = 9.2kg/mm at the front wheel
12.5 * 0.75^2 = 7.0kg/mm at the rear wheel
|
at my tune it is balanced and it is under steer and overseer at the same time while fast cornering , flexible drive and it is slider
OK , suspension tuning is a huge system that the drifters or modification use it to adjustment rolling and driving feel and allowed us to get better way to control the car.
as we know there are two ways the car jumps to while driving it at corner , one of it is under-steering and other one is over-steering .
there are many things effect in both things like tire pressure at front and rear tires , Width of the car from the front and the rear with driver, Width of the tires ,tire Aspect Ratio , tire Section Width , tire tread depth , wider and lighter wheels , camber , toe , caster , Anti-Sway bars , Spring rates , Shock absorbers , Suspension Bushings , Brake Proportioning , Aerodynamics.
check
http://www.northursalia.com/techdocs...ver-under.html
so to get the right balance you need a lot of time and tests .
top gear fun
[ame="https://www.youtube.com/watch?v=zoICf55jED8"]Top Gear Understeer and Oversteer explained - YouTube[/ame]
[ame="https://www.youtube.com/watch?v=L0_w3C840uw"]Car Control: Oversteer, Understeer and Braking (What to do in emergency situations) - YouTube[/ame]