Stan

The whole home made traction bars got me thinking. I wanna do this setup because I get a little wheel hop on the street, not so much on the track though.

But here's my question. Suppose the bars are perfectly horizontal. What happens when the suspension moves up and down, won't it draw the wheels towards the front of the car, or is it minimal?

Stan

MikeJ-2009

I think you're talking about the reason why they work. They hold everything tighter.

Stan

I know they prevent backwards movement. But I'm saying, what happens under normal driving, and you're carrying a few people in your car and it loads the suspension more. When the wheel gets pushed up into the wheel well more, the traction bar is only 1 length, it'll move up, but by doing so it'll pull the whole wheel/suspension with it to towards the front of the car. Know what I mean?

Stan

Stan

Here's what I mean, as denoted by the red:



Stan

MikeJ-2009

I don't know. Ask bambooseven, he knows everything. :P

con

thats why you use hiem joints so it can piviot, as for the tire moving front and back, what do you think it does with the factory marshmelo mounted bar in there? Do you thinks its going to move like a foot with your 2 inchs of suspension travel?

Masta

Think of it as both bars, the Traction bar rod and the LCA, both travelling on an arc. As the susp. goes up or down, the distance gets shortened or lengthened, as does the the arc of the rod attached to the traction bar. If you do it correctly, there should be little to no bind during full travel. Mount the traction bar rods at the same height as the LCA's where the car normally rides, try to mimic the length, and it should work out. If my theory is correct.

evosol

^like what he said... plus since the traction bar tie rod bars are about the longest peices in the front, and most lowered cars only see... 3"-4" of travel?? the angles are not gonna be extreme enough to really be noticed.

i hope that made sense. If you know about lifted trucks and U joints, driveshaft angles then its kinda of the same concept. longer has less angle, that means that as the front susension cycles up and down the "binding" is gonna be very minimal if done right. contact bambooseven for more info on mounting points on cross members.

Stan

This had nothing to do with my question.


This answers my question, thanks!

bambooseven

It works like a wishbone suspension would, you have to look down at it instead of looking at it from the side.

check it out this way, in a normal wishbone suspension setup you have two points on which the same control arm is pivoting. Each "leg" of the arm can pivot without interfering with the other one because they are on the same plane.


lets take the example of the honda suspension with a traction bar now. Stock, the honda only has one "leg" of the wishbone, to which we are adding another (the radius arm). as long as we maintain the basic geometry of a wishbone suspension it will function in the same way.


it is only when a radius arm is not pivoting on the same point as the control arm that you will run into the problems you are thinking of. otherwise you will be ok.