Hmmm… Well, I’ve seen repeatedly that softening / removing the rear torsion bar is said to “loosen up” or reduce the grip of the rear of the kart. Since turning a solid-axle kart relies on breaking traction on the inside-rear tire, that makes perfect sense. I can see where one might deduce, then, that softening/removing the front torsion bar would reduce front grip. However, if the outside-front corner of the chassis flexes up more under cornering load, won’t that also lift the inside-rear corner? Also, doesn’t some flex mean more mechanical grip, such as would be desired in the rain?
My 5-year-old chassis doesn’t have a front torsion bar, so I’m speculating at your expense. 🙂 I still say “test and compare.”
Remember, too, if your torsion bar is blade-shaped in the center, having the blade vertical is the stiffest setting, having it horizontal is an intermediate setting, and removing it altogether is the softest setting (duh). The last part applies even if it isn’t blade-shaped. 😆
I’ll be interested to see what the pros say, but in the end it all comes down to what settings you can handle the best and drive the fastest.