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Lower Control Arms & Sway Bars - Upgrades

6109 Views 59 Replies 11 Participants Last post by  Johnp410
I have been looking at Lower control arms and sway bars to try and control some of the body roll and rear end noise in my car. I have FE2 suspension (OEM) and was looking at putting beefier rear and front sway bars in the vehicle. Read on some old forum posts that a fat rear bar will likely crack the original lower control arms so now I am looking at those as well.

UMI seems to be a great place to get LCAs from... I did see that new POLY bushes will make the car ride stiff compared to the OEM rubber ones. Is this the case? I'm looking to keep the ride as squishy as possible, but remove some sway and roll in turns/corners.

Anyone have any experience with the standard UMI bars? What about the Roto joints? Would those make the car ride more smoothly compared to 2 POLY bushings? Links below to see what I am talking about. The Roto joints look really interesting, but can't find much about just a streetable car that's driven gently most of the time.

Also, it's been recommended that I check out BMR sway bars - their rear bar is fat and should really control the back end pretty well. Front bar is smaller, but the set would probably even the car out well (replace both).

Thanks for your thoughtful advice!
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Having gone to poly lowers on the 91, I can say, it's subtly different for different road conditions than rubber. For slow moving up down dips, they actually feel softer as there is no bushing twist to add 'spring rate'. Other conditions like pot holes where the tire is also jarred rearward during the impact, they feel more harsh. So really depends on what you roads are like where you live. Same setup maybe be horrible one place and perfect somewhere else.
I've ran with stock arms and the 1.5" HA bar most of the 91's life. Close to 200k just as a reference. It's all how you treat, or abuse the car...
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