RC Drift - BUMP STEER - How To Eliminate 

I think if you wanted to fully eliminate the bump steer, you would need a setup where all arms and tie rods are equal lengths & parallel. Unequal length arms will effect camber throughout suspension travel, which effects the toe. A tie rod that is longer/shorter than the arms will stop being parallel throughout suspension travel. You might even have to go 0 camber/caster but I'm unsure on that one.

Nice video! Your bump steer changes with steering because as you turn, your tie rod point on the knuckle moves up and down due to the combination of caster angle and steering axis inclination. The way to (nearly) eliminate it at all points of travel would be to set your steering bell cranks up so that they swing in essentially the same arc as the knuckles. Lean the physical pivot back to match the knuckle caster angle, and set the bell crank length somewhat close to what the knuckle tie rod offset (vs the upper vs lower ball joint axis). Of course ackerman would get in the way if everything were exactly identical, but I think this would be the best bet to minimize the effects of bump steer across the widest range of travel. This is not too dissimilar to what desert racing trucks do. Neat channel, keep it up!

Very insightful as always! Thanks for sharing. This was helpful.

I've reduced bumpsteer on my YD-2 by adding spacers between steering rack and ball stud. Just like you said, no bumpsteer isn't good and some people like it, I like having some controlled

Awesome info Joshua! Thanks for sharing!

Personally I wouldn t care for no bumpsteer when the steering is straight on a drift car. But thanks for the vid, I need it for my onroad car! ✌🏼

Cool channel man, I just bought an RDX and can't wait to build it and get into the drift hobby :)

Keep up the good work😊

Thanks Bro im having the same issues i will try to get those arms and steering parallel to see how that goes, i like how you place our GOD first keep it like that bro, Blessings! GOD is real 100%

Unequal length arms will cause bump steer. as well as non parallel arms.

Im on the same journey bro! Great video as always. 💪💯

It’s very possible to achieve 0 dump steer with the ddss I have the same front end, try getting rid of the spacers that were added at the knuckle and increase the servo angle with some spacers, the parallelism will stay more through the sweep of steering, buuuut a low profile servo might be needed due to the design of the ddss

Off topic question.. is that the shark dss front?. I have the yd2 ZX. And i want the shark front end with dss.. but i dont see a solution for the top deck. Cant find anything online. Im based in Uk btw..