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Front/rear sway bar questions

Originally Posted by Ralphatron I was just about to post a new thread about this until that second to last sentence caught my eye... I'm clearly a noob and wanted

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Old 12-08-2020, 11:31 PM   #1 (permalink)
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Originally Posted by Ralphatron View Post
I was just about to post a new thread about this until that second to last sentence caught my eye...

I'm clearly a noob and wanted a very aggressive handling car so I threw a bunch of money at coilovers and both front AND back hotchkis sway bars for my 6 month old '20 sport . Now I wish I was kidding you when I say this, but I've already been through 3 separate coilover kits because I've been on a mission to find the right balance of street drivability and performance. First was the digressive series kit from BC, then the true rear BR series, and finally the divorced spring BR series.

Right now I have the divorced spring style kit, and BOTH hotchkis bars on my car. I'm about to give up and go back to just stock struts and lowering springs because the instability in the car when going over medium bumps is driving me insane, but I'm starting to truly suspect its the sway bars, or at least the rear sway bar (which I have the links going through the middle hole of the 3).

Aside from oversteer/understeer issues with a rear sway, I'm hoping someone can tell me that Im an idiot for not expecting this. I know the sways can act as additional spring stiffness when only one side hits an imperfection, but can it really make the car feel that much stiffer/unstable over bumps? I've got the dampers all set to the softest setting too, and default spring rates as well.

Sorry for the story book post, I'm just trying to figure this out.
Really easy way to find out, disconnect one side of the bar and drive it. I’ve ran some stiff bars on another car and then moved to softer and could say the ride was better over uneven terrain but I don’t know if I’d go as far as saying unstable. Then again the hotchkis is a pretty massive bar. If spec on the net are correct I think the eibachs would be a interesting set to use since between the adjustment ranges it’s the only set I’ve seen that can go either way as a stiffer front bar vs rear (in ratio) or a stiffer rear vs front (in ratio). So theoretically they should have the widest range of tune ability.. I was pretty surprised to see the stillen even at the stiffest front setting only being marginally stiffer than the softest rear.
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