Originally Posted by
Matt49
Moving the entire bar down, decreases roll resistance just like raceEngineer said.In my opinion, more angle increases dynamic load on the RR tire at the expense of load on the LR tire.For this reason, more angle tends to make the car tighter on entry and looser on exit. And flatter tends to make the car freer on entry but tighter on exit. I think it is more common to sort of set and forget the chassis side and tune with the pinion side.Keep in mind that if you don't have close to perfect radius'd climbers for your application, a j-bar adjustment could mean a side-to-side rear end movement which could be compounding or cancelling what you are trying to do depending on which way it moved. And then if you adjust the j-bar length to compensate for the side-to-site movement, well now you've made another change. The length of the bar is a pretty substantial thing.