Looking for new sway bar. Can I go too big??

340doc said
We've been slowly upgrading my sons 70 Dart. So far we have 1.03 torsion bars, QA1 upper control arms with the extra caster built in and factory BBP disc. No shocks yet. Now I'm looking at a front bar. We don't have the tabbed lower arms so looking at a kit with bolt on tabs. I've narrowed it down to two bars from Hellwig. One is 1 1/8 dia. the other is 1 1/4. The 1 1/4 bar is offset a bit to accept wheels with up to 5.75 backspace which would be good for us as we have a 17" rim with 5 1/2 BS. My question being is the 1 1/4 bar too big? I could put up with a light rub on the bar from the tire at full lock. Should I stick with the 1 1/8?

I think 1 1/4 tubular would be fine. You don’t have the really stiff t-bars.

Do you have a rear bar? An adjustable can help balence it out.

I have much larger 1.14” Tbars and 1 1/4” tubular front sway bar. I have a rear adjustable sway bar. But at Willow Spring Raceway the rear had too much roll stiffness that gave an oversteer/loose condition.

So I disconnected the rear bar all together. Much easier to drive and no sliding into the infield.

Now for a autocross with lower speeds and tighter corners, the rear bar may help.

Right now, I drive it with the rear bar still disconnected on the street.