Bilstein HDs and H&R or Eibach springs

[martin23]

Can I use these lowering springs with HDs?

[themadhatter]

I wouldn't attempt it, the shocks aren't designed for that. You're better off getting the bilstein sports. they are a shorter shock designed for less travel (lowered cars have less room to bounce and rebound) and more heat capacity.

[martin23]

Thanks for the reply Hatter. One more question, can I use e30 M3 oem springs?

[jbob]

depending on what car you have now (325e,i,is) the drop will vary, but you won't see or feel much of a difference compared to getting some eibach's or h&r's.

and if your looking for a less harsh ride when getting lowering springs, checkout the bilstein touring shocks, they're valved between the hd's and sports.

[jimd]

I think the HD and sports are valved the same and both have a monotube design. The touring is double tube and is a whole different thing. And...there is a serious issue of damping the "rebound"...if you have shortened springs and your shock absorbers/struts aren't gutsy enough to recover within the travel of the spring...then you can get wheel "hop" as the springs "pop back" and aren't dampened by the shocks. It's not clear to me that the Bilstein Tourings can handle gutsy sport springs. [This is info. from the Bilstein site.]

[jbob]

yeah, there aren't too many people using bilstein tourings, i guess it's because they're relatively new. i just got some for my 320i, and am going to try them w/ some h&r sport's

[jimd]

I saw a post on another forum in which someone used HR OE Sports springs (which are a little "lighter" than full-on HR Sports) with Bilstein touring shocks and struts and was very happy....said i was tight enough to meet his performance needs without making street driving uncomfortable. This setup is admittedly a bit less trackworthy than a full-on setup.