Body roll is fine within reason. What you don’t want is large tire alignment or suspension geometry changes from body roll. 240s are pretty consistent in that regard.You can still see a gangsta lean in this full race prepped car.
This. 240s actually unweight the inside tire a lot under cornering. The rear roll center is too high, and the rear roll stiffness from the springs is very low. So people add a large rear bar to counteract it… but it just makes it worse unless you’re on a very smooth road or track.If you do the math out, a 240 has too much rear roll stiffness in pretty much any kind of front and rear stock component combination IF BALANCE IS YOUR TARGET. Some people prefer or require a looser characteristic, but you can't really tighten them up enough on stock components.
This is a good starting point. I actually ran no rear bar and the 25mm front bar with stiff front springs to increase grip in the rear of the drift car25f/16r
Say "No!" to rear IPD sway bars