Guide to Rear Shocks for Ladder Bar Drag Car (Pro Street)

weedburner said

My opinion is that chassis/housing separation speed is what actually matters to the car, not shock speed. Changing the motion ratio between shock and housing means you then need to interpret shock speed data thru an additional calculation to effectively compare separation rates. While moving the shock forward will give slower shock speed data, actual separation speed will increase due to the less effective shock location.

Grant

Click to expand...

Ok. That means rocker arms don’t work either. Shock speed is EVERYTHING. Since the early 1980’s most dirt bikes have had double adjustable forks and shocks. It’s the same thing. That’s why they were moving the shocks forward and laying them down. Thats why they ALL went to the stupid single shock and linkage arraignment, and not coincidentally, the rising rate of a “modern” bike is about the same as a 1981 490 Maico. That’s what changing the valving on the shock does, doesn’t it? If you reduce rebound damping the shock comes apart easier (and faster). It’s not hard to grasp.

As for separation...like I said I control that with the 4 link. If the car pitch rotates like it should the separation will be minimal anyway.