Drag Racing Discussions > Front Engine Dragsters
FED bounce problem.
Curly1:
Frame is wider style with diagonals so it should be relatively stiff chassis. That is part of reason I am reluctant to just start adding more bars.
xlr8:
I would check the chassis for cracks first. Sounds like a lot of flex.
BK:
I just let air out of slicks until it stopped bouncing.
Curly1:
I have tried 4 different tire combinations at all different air pressure. Will try another tire combination soon but I know the chassis is flexing and I know the tire is bouncing until I drop it down and then it wads up and chatters and all over track at the top end.
My thoughts are tire change will help some at the hit and in the shut down. Parachute will help in the shut down but I THINK the bouncing in the middle of the track is chassis flex and that is what I am trying to eliminate here.
This car is not bad and it is very competitive but it is not perfect yet.
wideopen231:
Question and not being smartazz this time. Are you sure its because of flex? I have had cars act stupid because too rigid or where in bind from chassis work that had been done. If memory serves you had a bunch of chassis work done. Has cart had this problem ever since? You stated it rigid chassis now. Do you have daat recorder on car? If so it would dang sure show any bounce in driveshaft graph.
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