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Author Topic:   Handling problems
97j
Member
posted May 27, 2003 03:01 PM
I run a factory stock on a 3/8 m. clay oval with slightly under medium banking. My car weighs about 3,350#. Rear % is 52.7. Springs are LR-225,RR-200,LF-1100,RF-1300.Front stagger is 1", rear stagger is 1/2". Air pr. are LF-9#,RF-13.5#,LR-8#,RR-13#. The car enters good but from there on out the rear wants to swap ends. I had to add 350# to make weight and its all in the rear. 100# on the left X-brace, 50# just in front of the fuel cell, 100# level with the rear bumper, and 100# on the right rear framerail. I need some advice on if this is a good or bad setup. Also the max i could get in RF camber is 1&3/4-, and LF 1+. I would appreciate any help.


stevewm
Member
posted May 27, 2003 06:32 PM
I run a factory stock on a 3/8 m. clay oval with slightly under medium banking. My car weighs about 3,350#. Rear % is 52.7. Springs are LR-225,RR-200,LF-1100,RF-1300.Front stagger is 1", rear stagger is 1/2". Air pr. are LF-9#,RF-13.5#,LR-8#,RR-13#. The car enters good but from there on out the rear wants to swap ends. I had to add 350# to make weight and its all in the rear. 100# on the left X-brace, 50# just in front of the fuel cell, 100# level with the rear bumper, and 100# on the right rear framerail. I need some advice on if this is a good or bad setup. Also the max i could get in RF camber is 1&3/4-, and LF 1+. I would appreciate any help.

Steve comments:
I would first of all take the stagger out of the rear to heads up,this will tighten the car.As of the air pressure I would run (16-18RF)-(13RR).(10LF)-(10LR).If you can change the rear springs I would change to a (175RR)-and a (200LR).You seem to have your weight all over the place and I would try to center it up in the center of the rear to get 80-120 pounds of left rear out of the car.

Toe-out 1/8-1/4".Left front 7 degree top out and right front 7 degree top in.The front springs you could try a 1000RF and a 900LF.

I would run the A Arms as level as you can get them with a total of 3/4 of an inch higher ride height on the right front.I measure the ride height from the bottom of the frame to the lower edge of the lower A-Arm on both sides.Try to keep the upper and lower ball joints in line with each other.

Since you are running a leaf spring car you can set the rearend so that your right rear tire clears the surface about 1-2 inches while the left rear is just hardly touching the surface.It is best to have a level concrete floor to do this on and have a jack in the center of the rear bumper so you can easily make these changes.The more space between the level surface you have on the right rear than the left rear is the tighter the car will be in the corners.If it pushes make the spaces even.I dont know if you can move your front spring eyes up or down if you can thats great just run the right rear one or two holes further up than the left rear and your right rear tire will clear the surface before the left rear.

If you cant move the front spring eyes up or down use a taller lowering block on the right rear.Then the car should be close to floating around the turns.

Happy racing.
Steve.


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