torsion bar to coil over equivalent

[gumba]

I have 31mm rear solid torsion bars and want to switch to coil overs.
Does anyone know what the coil over rate would be?

[Bill Verburg]

Originally Posted by gumba

I have 31mm rear solid torsion bars and want to switch to coil overs.
Does anyone know what the coil over rate would be?

Since the lever arm length will be different for coil overs compared to t-bars you will need to figure out what that difference is and then using that and the angle of the springs wrt to the travel of the wheel and the coil over spring rate compute the wheel rate w/ coil overs

I can tell you the wheel rates for any t-bar combo