Torsion Bars.

[Croz]

A post in the General Tech forum has led me to ask this question.

Has anyone removed their torsions and changed the way the splines fit the control arm? I mean added preload before they wind the bars up.

Just wondering if this might change the properties of the spring rate at all?

Thinking about it, it probably wont.

Andrew.

[murcod]

Croz that would only be of use if you run out of adjustment on the bolt (ie you've tightened it up fully and the suspension is nowhere near the bumpstop). Then you could turn the bar a bit further and get more adjustment.

The rate of the bar wouldn't be changed.

One of my adjustment bolts is wound up further than the other, I was going to pull it all apart to get them the same but then figured why bother?! It will only be a problem when I do a suspension lift.

[rocknferoza]

Most companys seem 2 sell heavy duty torsion bars. Wouldn't this actualy restrict wheel travel more then the standard bars Just wondering if anyone makes a softer rate torsion bar or maybe a custom set could be made so when a feroza is lifted 50mm+ it still has the same amount of travel as a standard torsion bar without lift
I've heard that some of the US guys run 2WD torsion bars in there 4WDs.

[murcod]

Most companys seem 2 sell heavy duty torsion bars. Wouldn't this actualy restrict wheel travel more then the standard bars

I reckon you'd be right saying that. It would take more force to compress the front suspension/wheel the same distance- so it probably wouldn't have the same travel under the same conditions.

[-Scott-]

Most companys seem 2 sell heavy duty torsion bars. Wouldn't this actualy restrict wheel travel more then the standard bars

I reckon you'd be right saying that. It would take more force to compress the front suspension/wheel the same distance- so it probably wouldn't have the same travel under the same conditions.

That's what I reckon too - unless you have dual batteries, steel bar and a winch out the front, why would you want stiffer springs?

My 10 year old bars must be softer by now, should be helping articulation!

Scott

[Croz]

Thanks guys, I thought as much but felt it might be worth discussing.

[built4thrashing]

my front use to flex nicely with stock torsion bars wound up with sway bar removed. could have drivers wheel at the bumpstop and passenger side at almost full drop. Trick is not to wind torsion bars to tight. just enough to get the lift needed to fit the bigger wheels. Also a big trick is to replace one of the rear leaves with a slightly thicker leaf (ie; 3 biggest) this will stop springs from sagging but still allow for full flex. I used a cut down leaf from a HQ holden but any other will work just as well.
Another hint dont worry about trying to wind torsion bolts in the same ammount just make sure it sits level. With the sway bar removed it really becomes a independant suspension coz its not tied together.