Torsion bars for better handling; your experience?

What size tire/wheel do you run? You look to have much more sidewall than I do, and I have to assume that dampens the ride and affects handling with those 1.14' bars. I think @MRGTX has a larger diameter wheel and perhaps that's the reason it is a bit harsh on the street.
I already get understeer with my 1.08 bars, so I don't even think about putting a stiffer bar on mine. Now I do only have a 235 tire on the front due to my wheel choice and I'm sure that has something to do with it. Since my wheels aren't available with the correct offset/width, I'll likely eventually get them widened to accommodate a 275 on the front. I'm not doing anything to the suspension until I can get a wider wheel up front. Overall, I think my car handles great on the autocross.

I have lousy 245/50/15 tires you can’t get anymore on 15x9 rims

Yes, shorter sidewall will effect ride.

I’m planning on 275/35/18 on 18x9 bare minimum. But looking into 295 and 305 …or maybe more