Code No. 80120-AT206
"Not just for lowering the vehicle height." "Super Low Stance Model" for reliable driving performance.
The model in the photo is GRS180
Application
| Engine | 3GR-FSE |
|---|---|
| Model Year | 03/12 - 05/09 |
| Remarks | The factory setting for case length and winding measuments set for GRS204. The vehicle height data is of GRS180. |
Specification
| FRONT | REAR | |
|---|---|---|
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | - | - |
| Height adjustable lower bracket | ○ | ○ |
| Upper mount | Spherical bearing | Spherical bearing |
| Inverted/Normal type | Normal | Normal |
| Damper/Spring layout | Coilover | Coilover |
| Spring rate change at factory | Possible | Possible |
| Damping force adjustment with wire | - | ○ |
| Helper spring (Spring rate N/mm) | - | - |
| Factory *2 | Test data | Adjustable range High - Low *3 |
Drivable range High - Low *4 |
||
|---|---|---|---|---|---|
| FRONT | Ride height *1 | 674 | 634 | 711 ～ 559 | 701 ～ 634 |
| Against stock | -37 | -77 | 0 ～ -152 | -10 ～ -77 | |
| REAR | Ride height *1 | 658 | 609 | 704 ～ 544 | 704 ～ 609 |
| Against stock | -46 | -95 | 0 ～ -160 | 0 ～ -95 | |
*1. Height from road surface to fender arch.
*2. Height at factory is the data tested at HKS with the setting of Full Kit. (HKS' recommended setting.)
*3. Adjustable range (However, the lowest value may not be road legal.
Even within the adjustable range, car body, arm etc. may contact. In such case, it will be hard to drive.
Damper oil leakage or any other problems caused by low ride height setting from the factory setting will void the warranty of the product.)
*4. Drivable range that there is no contact of car body or arms etc. (However, change of tire/wheel size may cause a problem.)
Caution). Actual data depends on each vehicle.
Kit information
Spring of Full Kit
| F | R | |
|---|---|---|
| Spring rate N/mm(kgf/mm) | 176 ( 18 ) | 157 ( 16 ) |
| Free height (mm) | 150 | 170 |
| Spring type | Straight | Straight |
| Recommended range to change spring rate N/mm(kgf/mm) | +20 ( 2 ) | +20 ( 2 ) |
Specification of damper
| F | R | |
|---|---|---|
| Damping force (Rebound/Damping)N* | 1846 / 940 | 1775 / 814 |
| Default position of dial | 20 | 20 |
| Remaining damper stroke (Rebound/Damping)mm | 24 / 48 | 23 / 49 |
* The value of the damping force is at piston speed of 0.1m/sec.
Setting data
| F | R | |||||||
|---|---|---|---|---|---|---|---|---|
| Default | Test | Drivable limit High * |
Drivable limit Low * |
Default | Test | Drivable limit High * |
Drivable limit Low * |
|
| Length of case (mm) |
408 | 385 | 426 | 385 | 396 | 364 | 426 | 364 |
| Spring Set length(mm) |
146 | 150 | 146 | 150 | 166 | 170 | 169 | 170 |
| Length to ride hight adjuster (mm) |
122 | 95 | 140 | 95 | 90 | 54 | 117 | 54 |
| Lever ratio | 1.49 | 1.51 | ||||||
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.
Test vehicle information
| F | R | ||
|---|---|---|---|
| Vehicle weight kg | - (840) | - (730) | |
| Tire size (Air pressure) kPa | 225 / 35 - 20 ( 350 ) | 225 / 35 - 20 ( 350 ) | |
| Wheel size | 9 JJ × 20 off 36 | 10 JJ × 20 off 38 | |
| Alignment (Toe/Camber) |
Test data | 0 mm / -2°15' | in 5 mm / -2°45' |
| Standard value | in 1 ± 2 mm / - 0°15' ± 45' | in 3 ± 2 mm / - 1°00' ± 45' | |
* Test data at HKS.
Parts List * It may be changed without prior notice.
Point
・Ultimate low-down suspension that used movable limit level of the arm. This kit is for dress-up user who wants a serious low-down.
・The damping force and spring rate are a little firm setting to prevent the interfere of the aero and the road at a high rolling and to compensate for uncomfortable ride because of more weight with big wheels.
・If the case length for both front and rear are set lower than the driving limit level, the upper arm and body might interfere with each other.
・Factory settings are 90mm from ground.
●About installation modification
・Need a hole for rear damping force adjustment cable(inside trunk).
・Need to cut some part of the inner fender if spring interferes.
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