r/rallycross • u/shatlking • Oct 15 '24

Question Thicker/stiffer sway bar?

After crawling under my 08 WRX hatch, I was grabbing the rear sway bar and it felt like the bushings may be on their way out, not to mention the rust and paint peeling. I’ve already been looking into new struts/coils, but I’m now thinking maybe some new sway bars wouldn’t hurt. But, for Rallycross, should I run a thicker/stiffer sway bar, or something with more give? I’d assume a thicker sway bar would be beneficial, as the car would resist body roll without losing too much suspension travel (if any). I’m already in Mod All, so anything goes really.

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u/Numl3ah1 Oct 20 '24

Are you on lift springs? Are your differentials still open?

Im in PA with a 12 wrx hatch. Its on kings lift springs with 21mm the 19mm rear sway bars b.c my diffs are open but its incredibly rough. Car drives really good though. When i move to mod and can put a limited slip rear diff in my car, i will absolutely be going to the group n 18mm front and back to the 16mm rear wrx sway bar.

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u/shatlking Oct 20 '24

Stock springs/struts (although, I’m planning on swapping to coils/different struts in the future). I’m also on stock diffs, most likely open.

I’ll look into those though

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u/Numl3ah1 Oct 20 '24

Well your 08 wrx has mega soft springs, so any replacement will be stiffer. With that being the case, id stick with oem bars.

Theres a Facebook group for our cars; 08-14 wrx sti rally cross. Its very lively but i asked like 13 people in there and anyone who wasnt on some badass rally suspension was on KYB's, Kings, and OEM bars. I think the kings are too stiff but with the open diffs, its eliminating body roll and making it faster.

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u/shatlking Oct 20 '24

I’ve heard, might knick some STi springs; although I may also pick up a sedan rear sway bar. KYBs have seemed like the immediate response, might end up going with them. Will look into joining that group as well.