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- #21
@grinchy - I see no non-destructive way to get inside the shocks. It is what it is and there's very limited opportunity to mod. I think the opportunity would be to look at the LX600 AHC dampers. The LX600 being a lighter vehicle isn't great from the surface, but it does seem it has opportunity for more travel.
Anyone interested in contributing to get a couple to rip apart?
As for using the rear shocks for the front, it's possible but not without a lot of external surgery. Then applying things like external limiting straps. It seems like the major aspects are similar enough, but the rear shocks operate on closer to a 1:1 motion ratio with the front shocks closer to a 2:1. It's hard to judge from the shim stacks, but they probably account for some of this and the tuning would be questionable.
There's at least 3 flavors of suspensions applied to the LX600. I'll say Lexus really fails at marketing and distinguishing as this was hard to find, and I had to distill it out myself. 3rd party reviews and marketing are inconsistent as well. AVS generally refers to adjustable dampers and lots of Lexus models have this, usually as an actuator directly on the shock, which is likely the component you referenced. AHC inherently has AVS but it's accomplished differently in that that's built into the remote damping valve. The LX600 then has a unique performance tuned coilover setup for the F Sport flavor, but can be optioned over by AHC, which itself is performance capable. Wonder if it gets slightly different tuning?
Anyone interested in contributing to get a couple to rip apart?
As for using the rear shocks for the front, it's possible but not without a lot of external surgery. Then applying things like external limiting straps. It seems like the major aspects are similar enough, but the rear shocks operate on closer to a 1:1 motion ratio with the front shocks closer to a 2:1. It's hard to judge from the shim stacks, but they probably account for some of this and the tuning would be questionable.
Interesting.. that diagram doesn't show the actuators mounted on the rear shocks on some LX600s. Toyota denotes those as F-sport and "AVS".. @TeCKis300 wasn't that the name of the system on 200-series AHC? Or was that AVSS?
There's at least 3 flavors of suspensions applied to the LX600. I'll say Lexus really fails at marketing and distinguishing as this was hard to find, and I had to distill it out myself. 3rd party reviews and marketing are inconsistent as well. AVS generally refers to adjustable dampers and lots of Lexus models have this, usually as an actuator directly on the shock, which is likely the component you referenced. AHC inherently has AVS but it's accomplished differently in that that's built into the remote damping valve. The LX600 then has a unique performance tuned coilover setup for the F Sport flavor, but can be optioned over by AHC, which itself is performance capable. Wonder if it gets slightly different tuning?
LX600 Trim | Performance Suspension | AVS | AHC |
Base | - | - | - |
Premium | - | x | - |
F Sport | x | - | Opt |
Luxury | - | x | Opt |
Ultra Luxury | - | x | x |