posted November 09, 2003 07:31 AM
Your pavement setup will probably be way to stiff for dirt. It will not let the chassis transfer the weight fast enough. Weight way play into it also. Most asphault chassis's that I know of run alot of left %. 54-56% I don't know what you are running. Ride height may be to low. gl spde
posted November 10, 2003 04:03 PM
ok, well it depends on what stub your using for springs and the cars wieght. but you will have to make some changes. i have ran a asphalt car on dirt. and it will be fast on super dryslick but that is the only time really. first off get a spring loaded pull bar from like afco and put it on and adjustment down to like 20 deg downhill and set it at 15 to start. i would go with about a 27 inch one center to center. put 2 9010 shocks on the rear end(on the top) let them just stradle the centerline of the car(like 2 inch over for each). if it is asphalt then it will have a long panhard bar across the rear that mounts to the frame. put the car on a j bar or a short bar.(buy a double sided pinon mount and a panhard bar clamp bracket) weld in a new tube to hold it on the frame. set the left side down in % to like 51-52 and the cross at 50 and the rear at like 57-60. and move the springs on sliders to the front of the rearend so they will wrap up under power and puch harder on the rear. if you want to make the car easy to switch back and forth, put the j bar mount in, and just make it so that you can lower your pull bar to like 20 deg. and change the spring lokcation with some 2 link brackets. i am guessing that you have a two link on asphalt. good luck
posted November 10, 2003 05:52 PM
what kinda ride height should i shoot for? rules call for 4 inches mid frame and mine meets that.
its a chevelle front sub, lr spring in front rr spring in rear. 3 link w long pull bar. itsa 1996 chassis.
posted November 10, 2003 06:03 PM
i would go to www.dirtworksracecars.com and get my spring rates from them and the ride hieghts. what kind of pull bar do you have? solid rubber or spring.
posted November 10, 2003 07:27 PM
i would also get some mounts and mount the spring in the front of the axle on both sides. also how long are you trailing arms? you could build a plug and run a short one on the left side to help to load that tire faster and to make the car have some rear steer which would help the car pivot mid corner.