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Post by bankshot on Nov 23, 2014 16:46:32 GMT -6
i have a sprint car that i have made street legal, my first trip down the street revealed death wobble at 20-25mph. adjusted catser, it helped, but 35 was max. new radials all the way around and the problem went away. took it out today, the tires have about 5oo miles on them and the death wobble is back at 35mph or higher..can anyone help me?
larry
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Post by flipflopoo1oo on Nov 23, 2014 20:35:12 GMT -6
A wobble is normally related to being out of balance and slack! Test the straightness of rims like you would scribing to set the toe in! Make sure your toe-in is correct! In some cases shocks can be at fault! A stabilizer shock on the drag link may help! Be sure your rear is square with the front! Look for a defective tire! Never swap sides once ran, they will come apart!
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Post by flipflopoo1oo on Nov 24, 2014 6:56:30 GMT -6
A bit of mud or a few rocks stuck in the threads can unbalance small tires quickly! A Mud Dobber can plug the cooling veins in some rotors or you can loose the wheel weights! I have seen balance weights come out of rotors! All components need to be balanced together, if you had a wheel off be sure to remove the rotor and clean behind it before re-torqueing! Some small hubs on cars today can be warped by over tightening! I always try to mark timing on anything I disassemble, even a tire and wheel! If you rotate wheels, it can change balance of the entire rotating assembly! A little on the right and a little on the left together can gain when tied together!
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rickd39
Fourth Place
www.duricaracing.com
Posts: 54 
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Post by rickd39 on Dec 3, 2014 17:26:33 GMT -6
Larry,
Your street legal sprint car probably will need a steering damper on the tie-rod
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Post by moldy on Apr 4, 2016 17:35:40 GMT -6
Check toe. The steering arm lengths, too. One side may be long as the other side will be shorter. Try 0* caster, then increase the degree of caster till it stops wandering. Both positive and negative.
Maybe by now you got it sorted out. Let us know what it was, soooo we can do that to if we get a 'death wobble.
Moldy
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Post by moldy on Apr 9, 2016 20:10:26 GMT -6
Forget what I wrote about above. Death wobble can come from having not enough weight on the front suspention. Too much rear weight for the chassis.
Add some weight on the front end.
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