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Best Sway Bar for S550 Mustang in Street Autocross

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Duane Black

Curbs go brrrppp
701
629
Exp. Type
Time Attack
Exp. Level
5-10 Years
Durham, NC
I can't find a good post about a front sway bar.... not lately at least.

So I have -2.0 degrees of front camber in my Muscrat, and the inside of the tires are about 20 degrees cooler than the middle and outside. I know it needs more camber, but I can't reasonably do that in street class.

Since you can't change springs, add camber plates, or change ball joints... I think that leaves me with adding front roll bar stiffness to try to overcome the issue.

What's the best bar out there for that purpose? It needs to fit all the factory locations.

Thanks! :)
 
Running street makes it tough. The HPP has a 24mm rear anti roll bar, so fairly stiff. The front bar is 34mm, which is a middle stiffness. Because you can't change the front spring rate, I'd recommend sticking with a stock bonded-bush type front anti-roll bar. You need to add front stiffness any way you can get it and bonded bushings in the ARB is part of that. It will end up to be stiffening ride and roll (helps transitions). If you put on an aftermarket front bar, then you'll move to polyurethane sliding bushings. This doesn't add spring rate to the system and so would be a loss to you with stock springs. You can't afford to lose any vertical stiffness. I'd try to find a front bar off of a gt350 or 500. These are bigger diameter and stiffer, but still have bonded bushings, so not reducing your front vertical spring rate.

Because you'll be limited on what you can do to the front, the rear bar is a decent match to a bigger front. Alignment will be key to making it work.
 
I can't find a good post about a front sway bar.... not lately at least.

So I have -2.0 degrees of front camber in my Muscrat, and the inside of the tires are about 20 degrees cooler than the middle and outside. I know it needs more camber, but I can't reasonably do that in street class.

Since you can't change springs, add camber plates, or change ball joints... I think that leaves me with adding front roll bar stiffness to try to overcome the issue.

What's the best bar out there for that purpose? It needs to fit all the factory locations.

Thanks! :)
When I was stock suspension the Steeda front 35 mm bar made a huge difference paired with the OEM PP1 rear swaybar I moved to 275/35/19 square tires though as well as had camber plates installed but to this day I fell this was the best Street setup for that car.
 
I still use that combo and the 2nd hole from full soft (580 lbs) is still working amazing for me. Steeda swaybar rates are stiffer even on the full soft setting to anything else on the market which was the reason I went with that Swaybar.
Did you need the Steeda adjustable sway bar links or is OEM just fine?
 

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