Originally Posted by Augusto
if top fuelers don't have rear suspenssion and do great, what if I fix solid the rear axle of my drag car? it's not meant to be driven on the streets, so does it really need rear springs and linkage?
Top Fuel cars have suspension, of a sort. Chassis bow and flex, weight distribution, clutch/power application, and rear tire dynamics to name a few things allows them to run w/o shocks and links, etc. If you
tried this there would be disastrous results, it would blow the tires off every time.
Instead of a rail, look at a Pro Stocker. They have mega adjustability to tune for the track conditions.
The video below shows the suspension movement during an 1/8 mile run. There's not a whole lot of movement, but what there is is totally necessary for it to hook: