LegendsRacer - Legends & Bandolero Racing Forum
LEGENDS => Setup and Handling => Topic started by: Lugnut on June 03, 2007, 08:59:24 pm
-
Can someone explain to me how softening or stiffening each of the 4 springs will affect the handling? I'm not looking for anyones set up, just trying to learn how to adjust and tune my own car. I assume each of the 4 corners will act differently to softer or stiffer springs.
Thanks!
-
Lugnut,
Try this link.
http://www.kevscorner.com/Corner2004/KCLegendQuikFix.htm
Hope this helps.
Steve
-
From http://charlesking.net/Legends-Cars.html
Cross Weight/Wedge
Cross weight is the combined weight of the left rear corner and the right front corner as a percentage of the total vehicle weight. More cross weight results in a tight race car, less cross weight results in a loose race car. Wedge is the adjustment made to change vehicle cross weight. Adding wedge to the left rear will transfer more weight to the right front corner. Wedge is added or removed by adjusting the springs.
Al
-
Don't know if this will help, a quick trouble shooting guide from the Dwarf Car Technology book.
Car is loose going into a turn:
Item Adjustment
Stagger Decrease
Toe-out Not enough
Front springs Too soft
Rear springs Too stiff
Brake bias Too much rear
Suspension bind Exists in rear suspension
Cross weight Increase
Rear roll center Lower
Car pushes off corner
Item Adjustment
Stagger Increase
Toe out Decease
Front springs Too stiff
Rear springs too soft
Cross weight Use less
Rear roll center Raise
Hope this is of some help.
Steve
-
First I want to thank everyone for all the info its a big help. I guess my only question left is how does the LF spring and LR spring affect the handling. I got the jist of the right side springs but still am not sure about the left sides.
Thanks again
-
a heavier LR will tighten the car, a heavier LF will loosen the car
-
It all has to do with the cross weight transfer that Al explained. How fast, or slow, weight transfers from one corner of the car to the other. You want to keep all 4 tires on the ground.
I have been using Dwarf Car Technology, by Steve Smith, as a reference while I build my car. There are several good books out there on handling and suspension. How To Make Your Car Handle, Race Car Suspension And Geometry are a couple others I have in my library.
It's all pretty mind boggling at times. I guess I should have paid more attention in physics class. :o
Just my .02 for what it's worth.
Good Luck
Steve