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Author Topic:   Fighting a push
FS93
Member
posted June 30, 2001 11:35 PM
My brother in law is in his first year driving a mod, and i am trying to help him with his setups. We really havent touched the suspension too much as he is still really trying to learn how to drive and the car was setup by the previous owner for the track that we run. The car is a 3bar rear car, and is a medium banked 3/8 oval. The problem we are having is a push in mid turn. If he lifts the slightest bit it wants to push. If he can stay on the throttle through the turn it does great, but in traffic if he has to lift it pushes bad. The track usually stays tacky throughout the night also. Any suggestions on what to do to help this situation? Thanks

Brandon

dirttrackracer
Member
posted July 01, 2001 08:58 AM
Raise panhard bar a little bit on both ends, if entry is good.Dont change anything else and try that,it doesnt take much of a change to make a difference on the panhard bar.


millerlt3
Member
posted July 01, 2001 11:22 AM
dirttrackracer is right, raise the panhard bar or j-bar and it will help adjust the push you have in the middle.

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HOTWIRE
Member
posted July 01, 2001 02:00 PM
First check to see if the RR shock is even any good to start with because 9 out of 10 times if you bottom a shock out like that its probably junk. Also check its mount position which at proper ride hieght should be at half of its total stroke travel. As far as putting heavier shocks on the rear it depends on what rear weight percentage you have, they say from 52 to 54 percent rear use 94's and from 55 to 58 percent to use 95's. As far as a basic setup, I run 3/8 with a med. bank and fast sweeping corners and I run ride hieghts at- LF=4 3/4" RF=5 1/4" LR=5 1/2" RR=5 3/4". Spring rates- LF=650, RF=750, LR=200, RR=200. Shocks- LR=75, RF=76, LR=94, RR=94, and when it dry slicks I change the RF to a 76-3. Front end- Caster(power steer) LF +2 1/2 degrees, RF +5 degrees. Camber- LF +1 degree, RF -3 degrees. Toed out 1/8". I run 54.1% left side, 53.5% rear, and 49.5% cross weight. Wheel offsets- LF LR RR 3" offset and An 2" offset on the RF, On American Racers with tire pressure of LF=12psi, RF=14psi, LR=9psi, RR=12psi beadlocked. Stagger- when its wet I try to run at least 1 3/4", but if its going to dry slick around 1/2". Hope this helps.


HOTWIRE
Member
posted July 01, 2001 06:52 PM
Just like the other guys said raise the panhard bar on both ends. This will stop it from rolling over as much. Maybe your shock won't bottom out then.


dirttrackracer
Member
posted July 03, 2001 04:59 PM
HOTWIRE,just try the panhard bar for now with no other changes and go from there.If you make alot of changes you will never learn what each change made and will guess at a problem instead of knowing what to do.The shock may be bad from bottoming so check it, but raising panhard bar will reduce right rear travel.How much travel are you getting anyway?Around three to three and a half is about right usually.Keep us posted next time you run.


HOTWIRE
Member
posted July 03, 2001 09:29 PM
Hotwire, my setup works for me, thats not to say it will or won't work for you. the other guys are right, for now just try to fix one problem at a time but definetly watch for that shock bottoming out because that also could be the cause of your push problem.


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