Torsion Bars... Best Diameter for a Lowered Street / Autocross car?

JWRICH said

My plan is almost identical to your setup on the Duster. Knowing what you do about your car's current handling, would you step down to 1.08, or up to 1.14 bars? As I look at options, those two sizes seem to be at a better price point than the 1.12 from Firm Feel. (I'm looking at BAC 1.08 and Sway Away 1.14). I'll be running the Hotchkis Fox shocks as well. Thanks

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On my car I would be more I inclined to go up to 1.14” than down to 1.08”. At the ride height my car sits at I’m basically at the minimum wheel rate, if I lowered the wheel rate I would need to raise the car to keep it from hitting the bump stops.

I haven’t had any issues with the 1.12’s being too stiff. My 275’s are 340 treadwear tires too, so with stickier tires larger bars would be fine (and possibly necessary). I wouldn’t want to go a lot stiffer on my car just because I use it as a daily driver. Autoxcuda runs 1.14’s on his barracuda. The key is running good shocks.

It’s all set up dependent- tire choice, ride height, alignment settings and drivers style all come into play. But with how my Duster is set up I wouldn’t go any smaller than 1.12”. I like the 1.12’s a lot, they are more expensive coming from FFI but it’s not like you have to buy them every year. They’re probably a one time purchase so I for one would rather spend a little more to get exactly what I want.