Code No. 80120-AH209
*Discontinued.
"Not just for lowering the vehicle height." "Super Low Stance Model" for reliable driving performance.
The model in the photo is RK1.
Application
| Engine | R20A |
|---|---|
| Model Year | 09/10 - 15/03 |
| Remarks | The vehicle height data is of RK1. |
Specification
| FRONT | REAR | |
|---|---|---|
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | - | - |
| Height adjustable lower bracket | ○ | ○ |
| Upper mount | Spherical bearing | Stock |
| Inverted/Normal type | Inverted | Normal |
| Damper/Spring layout | Coilover | Separated |
| Spring rate change at factory | Possible | Impossible |
| 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 | 650 | 625 | 712 ～ 605 | 701 ～ 615 |
| Against stock | -62 | -87 | 0 ～ -107 | -11 ～ -97 | |
| REAR | Ride height *1 | 643 | 633 | 643 ～ 620 | 643 ～ 620 |
| Against stock | -72 | -83 | -72 ～ -96 | -72 ～ -96 | |
*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) | 78 ( 8 ) | 78 ( 8 ) |
| Free height (mm) | 170 | - |
| Spring type | Straight | Special shape |
| Recommended range to change spring rate N/mm(kgf/mm) | +10 ( 1 ) | - |
Specification of damper
| F | R | |
|---|---|---|
| Damping force (Rebound/Damping)N* | 696 / 216 | 588 / 284 |
| Default position of dial | 20 | 20 |
| Remaining damper stroke (Rebound/Damping)mm | 37 / 50 | 54 / 45 |
* 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) |
346 | 321 | 390 | 321 | 386 | 373 | 386 | 373 |
| Spring Set length(mm) |
160 | 160 | 153 | 170 | - | - | - | - |
| Length to ride hight adjuster (mm) |
63 | 38 | 114 | 28 | 61 | 51 | 61 | 39 |
| Lever ratio | 1.00 | 1.10(spg) , 0.87(dmp) | ||||||
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.
Test vehicle information
| F | R | ||
|---|---|---|---|
| Vehicle weight kg | - (910) | - (690) | |
| Tire size (Air pressure) kPa | 215 / 45 - 18 ( 280 ) | 215 / 45 - 18 ( 280 ) | |
| Wheel size | 7.5 JJ × 18 inset 48 | 7.5 JJ × 18 inset 48 | |
| Alignment (Toe/Camber) |
Test data | in 1 mm / -2°09' | in 7 mm / -0°39' |
| Standard value | 0 ± 2 mm / 0°00' ± 45' | in 0 ～ 6 mm / -1°00' ± 45' | |
* Test data at HKS.
Parts List * It may be changed without prior notice.
Point
・This is a serious low-down damper kit for serious dress-up users.
・We set it harder to avoid for the aero to hit the road at a high rolling and bad drivability for a heavy vehicle with big wheels.
・We have adopted camber adjustable upper mount for front. But because the hole at the vehicle side installation position it cannot have a camber adjustment to the maximum upper plate limit. (Camber setting at the test was step 3.5.)
・If you make the front case length shorter than 321mm, the stabilizer and the body will interfere at a full stoke.
・Please do not make the rear damper case less than 321mm or it will interfere with wheel speed sensor connector and the torsion beam.
・The recommend dial setting for front:20 steps, rear:20 steps.
・The data other than testing is calculated numbers.(It's not guaranteeing the actual number of vehicle height)
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