LC500 Suspension Options
#3
Pit Crew
Thread Starter
Lowering Springs
RS-R Ti2000 Down Sus
Approximate DropFront: -20mm to -25mm (-0.8in to -1.0in)
Rear: -35mm to -40mm (-1.4in to -1.6in)
Spring Rate
Front: 6.42kg/mm
Rear: 4.07kg/mm
https://www.rs-r.com/product/lexus-l...s-springs-2018
Tein S.Tech Lowering Springs
Approximate DropFront: -1.2in
Rear: -1in
Spring Rate
Front: 5.4kg/mm
Rear: 2.6kg/mm
My car pictured above
https://www.tein.com/srch/us_search....B&item=default
Passive Coilovers
RS-R Best-i Coilovers
Preset Approximate Height From RS-RFront: -20 to -25mm
Rear: -20 to -25mm
Maximum Adjustment Ranges
Front: 50 to -130mm
Rear: 35 to -135mm
Spring Rates
Front: 10.00kg/mm
Rear: 5.00kg/mm
Factory AVS controller disabled
https://www.rs-r.co.jp/script/itemse...0&URZ100&shock
https://www.topendmotorsports.com/le...overs-3039.php
Tom's Racing Coilovers
20-stage adjustmentRear stepless adjustment
Front: 4341/984
Rear: 2628/708 (12th stage)
Spring rate (N/mm):
Front: 100
Rear: 60
Factory AVS controller disabled
TOM'S Racing Coilover Suspension Kit
https://www.tomsracing.co.jp/sv/prod...43&typeID=2431
T-Demand Pro-Damper Coilovers
These are highly customizable so there are no standard details.https://www.topendmotorsports.com/le...vers-10438.php
Bold World Absolute DS NEXT Coil-Overs
Not much info on these besides:32-stage type
Basic spring rate upgrade to 26K is available
Bold World Absolute DS NEXT Coil-Overs
https://www.boldworld.co.jp/products/detail/1143
https://www.topendmotorsports.com/le...overs-3489.php
Ideal Treuva Adjustable Coil-Over Kit
These are also customizable from my understanding so no basic spring rates available.36 step adjustable
https://ideal-japan.net/coilover/treuva
https://www.topendmotorsports.com/le...r-kit-5577.php
BLITZ Damper ZZ-R Coilovers
32 way adjustableSpring rate kgf/mm
Front: 10.0
Rear: 5.0
Free spring length mm
Front: 220
Rear: 240
Adjustment range
Front: -80 - 0
Rear: -70 - 0
https://docs.google.com/document/d/1...f=true&sd=true
https://www.blitz.co.jp/wp-content/u.../2018-0039.pdf
https://www.topendmotorsports.com/le...overs-3052.php
Aragosta Type-P Premium Concept Coilovers
Customizable with rubber mounts or pillow mounts.Spring rate mm/kgf
Front: 250/12
Rear: 250/6
Adjustment range mm
Front: -35 - +20
Rear: -30 - +20
http://www.tpl.co.jp/aragosta/type/
http://www.tpl.co.jp/sys/wp-content/...rago_lexus.pdf
Active Coilovers
RS-R Best-i Active Coilovers
Preset Approximate Height From RS-RFront: -20 to -25mm
Rear: -20 to -25mm
Maximum Adjustment Ranges
Front: 50 to -130mm
Rear: 35 to -135mm
Spring Rates
Front: 10.00kg/mm
Rear: 5.00kg/mm
Factory AVS controller enabled
https://www.rs-r.com/product/lexus-l...8-besti-active
Tein Coilovers
No info - maybe discontinued or custom order? From the photo it looks like an electronically adjustable coiloverhttps://www.boostlogic.com/product/l...er-suspension/
BLITZ Damper ZZ-R DSC Plus Coilovers
Same as BLITZ Damper ZZ-R Coilovers + Electronic damping control module32 way adjustable
Spring rate kgf/mm
Front: 10.0
Rear: 5.0
Free spring length mm
Front: 220
Rear: 240
Adjustment range
Front: -80 - 0
Rear: -70 - 0
http://www.blitz.co.jp/products/susp...cdsc_plus.html
https://www.topendmotorsports.com/le...vers-11980.php
Air Cup Suspension
Bold World Parfume Cup NEXT Coil-Overs with Air Cup Kit x2
32-step damping force adjustment and full-length adjustable vehicle harmonic driveAir cups adapted to Bold World Absolute DS NEXT coilovers
No spring rate info
https://www.boldworld.co.jp/products/detail/3993
https://www.topendmotorsports.com/le...it-x2-3490.php
Bold World Parfume Cup NEXT Coil-Overs with Air Cup Kit x4
Same as above but with a cup on each coiloverhttps://www.boldworld.co.jp/products/detail/3993
https://www.topendmotorsports.com/le...it-x4-3491.php
Aragosta Cup
Same as Aragosta Type-P premium coilovers with x2 air cups for front.Spring rate mm/kgf
Front: 250/12
Rear: 250/6
Adjustment range mm
Front: -35 - +20
Rear: -30 - +20
http://www.tpl.co.jp/aragosta/type/
http://www.tpl.co.jp/sys/wp-content/...rago_lexus.pdf
Roberuta Lift Systems
OptionsFront air cup system
Front and rear air cup system
Front electromagnetic lifter system
Front and rear electromagnetic lifter system
Requires aftermarket coilovers (not included) to be modified and adapted to the system
http://www.roberuta.com/domestic
Airbag Suspension
Air Force Air Struts and Air Bags
Aluminium top mount. Kit can be ordered with extras.http://www.airforce-sus.com/application.htm#LEXUS
Air Runner Air Suspension System
40 dial dampeningAdjustment range mm
Front: -655 - +765
Rear: -660 - +770
https://www.accincjp.com/productjapan/17-lc500/
AirREX Air Bag Suspension Struts
No infohttps://www.airrex-global.com/en/a1-...RZ100-18~.html
Bold World Ultima Airbag Suspensions
A few models: NEXT, 2 NEXT, GLITTER, ADVANCE, EXISTAll 32 way damping
https://www.boldworld.co.jp/products...tegory_id=1186
https://www.topendmotorsports.com/le...de/bold-world/
Ideal Air Suspension Struts and Bags
36 way dampinghttps://ideal-japan.net/airsuspension
https://www.topendmotorsports.com/le...rear-12266.php
T-Demand Pro Dampers with Air Sus
T-Demand dampers adapted to airbags. Highly customizable.http://www.t-demand.jp/products/prod...ersion_up.html
The following 4 users liked this post by iamnaeem:
#4
Lexus Fanatic
iTrader: (20)
wow, tons of info, thanks for sharing.
do you know the factory spring rates?
do you know the factory spring rates?
#6
Driver School Candidate
Good job on the PDF. It seems you and I are alike in over analyzing upgrade options. The good thing is there are usually no surprises, the bad, it drives you crazy trying decide. Did you get some yet?
#7
Your #1 Lexus Vendor
iTrader: (8)
Sounds about right!
-Josh
-Josh
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#8
Instructor
iTrader: (1)
There are several different options from RSR, including Steel vs. Titanium, different specs for Japan and US cars, and additional options for convertibles. It appears that the Japan spec springs lower the front more than the rear, and the US spec springs lower the rear more than the front.
https://www.topendmotorsports.com/le.../springs/rs-r/
USA
RSR Down Ti2000 (USA) - Approximate Drop: Front 20-25mm / Rear 35-40mm. Spring Rates: Front 6.42kg/mm / Rear 4.07kg/mm
Japan
RSR Down - Approximate Drop: Front 15-20mm / Rear 10-15mm; Spring Rates: Front 6.07g/mm / Rear 3.27kg/mm
RSR Down Ti2000 - Approximate Drop: Front 15-20mm / Rear 10-15mm. Spring Rates: Front 6.07kg/mm / Rear 3.27kg/mm
RSR Superdown - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
RSR Superdown Ti2000 - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
https://www.topendmotorsports.com/le.../springs/rs-r/
USA
RSR Down Ti2000 (USA) - Approximate Drop: Front 20-25mm / Rear 35-40mm. Spring Rates: Front 6.42kg/mm / Rear 4.07kg/mm
Japan
RSR Down - Approximate Drop: Front 15-20mm / Rear 10-15mm; Spring Rates: Front 6.07g/mm / Rear 3.27kg/mm
RSR Down Ti2000 - Approximate Drop: Front 15-20mm / Rear 10-15mm. Spring Rates: Front 6.07kg/mm / Rear 3.27kg/mm
RSR Superdown - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
RSR Superdown Ti2000 - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
#9
Pit Crew
Thread Starter
I've been running Tein springs for some time now, but I'm thinking about coilovers/air cups/air bags now, but haven't decided yet.
Thanks for this!
There are several different options from RSR, including Steel vs. Titanium, different specs for Japan and US cars, and additional options for convertibles. It appears that the Japan spec springs lower the front more than the rear, and the US spec springs lower the rear more than the front.
https://www.topendmotorsports.com/le.../springs/rs-r/
USA
RSR Down Ti2000 (USA) - Approximate Drop: Front 20-25mm / Rear 35-40mm. Spring Rates: Front 6.42kg/mm / Rear 4.07kg/mm
Japan
RSR Down - Approximate Drop: Front 15-20mm / Rear 10-15mm; Spring Rates: Front 6.07g/mm / Rear 3.27kg/mm
RSR Down Ti2000 - Approximate Drop: Front 15-20mm / Rear 10-15mm. Spring Rates: Front 6.07kg/mm / Rear 3.27kg/mm
RSR Superdown - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
RSR Superdown Ti2000 - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
https://www.topendmotorsports.com/le.../springs/rs-r/
USA
RSR Down Ti2000 (USA) - Approximate Drop: Front 20-25mm / Rear 35-40mm. Spring Rates: Front 6.42kg/mm / Rear 4.07kg/mm
Japan
RSR Down - Approximate Drop: Front 15-20mm / Rear 10-15mm; Spring Rates: Front 6.07g/mm / Rear 3.27kg/mm
RSR Down Ti2000 - Approximate Drop: Front 15-20mm / Rear 10-15mm. Spring Rates: Front 6.07kg/mm / Rear 3.27kg/mm
RSR Superdown - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
RSR Superdown Ti2000 - Approximate Drop: Front 35-30mm / Rear 30-25mm. Spring Rates: Front 5.92kg/mm / Rear 3.57kg/mm
#10
One set I did not see on your list is PSI air suspension, this brand is known from FB LC 500 groups. Pricing is about $3k with air management 3P and its a full kit. Just haven't heard much about quality just yet. This is a tremendous list.
The best brands for air suspension that I've heard of for the LC 500 is Air Runer and T Demand
The best brands for air suspension that I've heard of for the LC 500 is Air Runer and T Demand
#11
I'm in the same boat as you and your research is astounding! Have you gotten any closer to a decision on what you'll be going with? I can find some kits that are $3k w/ 3P airlift management included. But I want the best and the best cost around $5k and that's without air management or installation costs.
#12
Pit Crew
Thread Starter
I'm in the same boat as you and your research is astounding! Have you gotten any closer to a decision on what you'll be going with? I can find some kits that are $3k w/ 3P airlift management included. But I want the best and the best cost around $5k and that's without air management or installation costs.
i haven’t decided yet! Ideally, I want active coilovers that are also electronically height adjustable. I’ve heard that air bag systems end up having too much associated maintenance. I plan to reach out to manufacturers soon to see if they can produce what I’m looking for.
#13
I've decided to go with converting the OEM strut for the air. One thing I am having a hard time finding is aftermarket suspension parts. Looks like T-Demand is the only one that offer them and they are crazy expensive.
#14
Pit Crew
Thread Starter
#15
Universal Air has a conversion kit. https://www.universalair.com/shop/lc...attr=2812,2813
https://www.topendmotorsports.com/le...ment/t-demand/