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Re: Sway bar links / BMPD adjustable links worthwh (archive)

[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]

Posted by demet on August 23, 1999 at 22:53:08:

In Reply to: Sway bar links / BMPD adjustable links worthwhile? posted by Karl on August 23, 1999 at 21:23:53:

I haven't read anything that would lead me to believe adjustable links can improve handling. I could be wrong but I think the key to fine tunning handling is in adjustable bars that have multiple mount points for the link. By attaching the link to a different mount point, which changes the arm length, rate adjustments to bar can be made. Another way of changing the bar's rate is to increase the diameter of the bar itself. The diameter of the bar affects its stiffness to the power of 4. Double the diameter and its stiffness will be sixteen times greater. Want some good bedtime reading? I recommend "Performance Handling - How to make your car handle techniques for the 1990's" by Don Alexander. Also check out
Ed has the same performance requirements and some of his mods on his 535is are pretty cool. For parts check out Dale's parts page at You may find some useful sources there.

87 528e

: Its time to replace the stabilizer (sway) bar links and (lower) control arms on my '88 535i. I'm checking to see if anyone knows of any reasonable upgrades for these parts.

: BMP Design has adjustable sway bar links listed for the E28. Has anyone used these? Any improvement?

: Any upgrades for the (lower) control arms?

: BTW, my performance leaning is towards aggressive street use, some autocross, and occasional track use.

: Any help would be appreciated. (Please post an archive link if available... I looked but didn't find anything relevant.)

: Are there any good sources that summarize what E28 upgrades are available?

: Thanks,

: Karl

: '88 535i

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