I'm trying to get as smooth a ride as I possibly can with my Eibach/Illumina combo. I bought them used as a complete unit incl mounts/bearings/pre-cut boots. I knew beforehand that it's one of the stiffest springs, but I got a pretty good deal from a great seller. Anyway, I don't really mind the ride, it's the rest of the family . I've tried the softest settings & though it rides better, there's a slight bounciness that I feel disconcerting. Last thing I did was drop my tire pressure to 33fr/32r( stock recommended psi)...this seems better, but I can now feel the tires seem too soft. I deliberately bought all season h-rated Kumho AST to try to help out. I'm open to suggestions, if not I'll replace them with Progress since they seem to offer a good a ride as H&R without the uneven drop.
Any suggestions?

 

Chassis stiffening. Find a shop that will fab you up some subframe connectors, and pick up Matt Blehm's Stage II Lower Tie Bar.

Also, H-rated tires aren't necessarily the way to go for a smooth ride. It depends more on the stiffness of the sidewall than on the rating.

 

Thx for the input, I was thinking of SFC's, but being in Toronto I didn't feel like ordering them. Maybe I can get a shop locally to get me a quote.
The h-rated tires are not that stiff, I just took a quick drive and dropping the psi has helped.

I'll check around for a chassis shop.

 

should have got H&Rs....Eibachs are stiff...its tough to make stiff springs feel soft.....SFC...chassis foam are a good start

 

With AGX the Eibachs were bouncy on 1, but setting them on 2 was good. I think Illuminas would be fine on 2 or 3. I never liked the ride on 3 or 4 with the AGX, they are just way to stiff.

Comfort is always a trade off when lowering.