Code No. 80310-AH003
The fun to drive at will and the balance can be adapted from circuit to winding road.
Reised Driving-Comfort, "Ultimate All-Rounder"
Application
| Engine | K20C |
|---|---|
| Model Year | 17/09 - 22/08 |
| Remarks | Remark: This kit is for CIVIC TYPE R, which is not able to adopt on other grades of CIVIC. *Error is displayed when the stock dampers are removed. An optional canceller is required to avoid the error display. |
Specification
| FRONT | REAR | |
|---|---|---|
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | - | - |
| Height adjustable lower bracket | × | 〇 |
| Upper mount | Spherical bearing | Spherical bearing |
| Inverted/Normal type | Inverted | Normal |
| Damper/Spring layout | Coilover | Separated |
| Spring rate change at factory | Possible | Possible |
| Damping force adjustment with wire | - | 〇 |
| Helper spring (Spring rate N/mm) | 〇 (19.8) | 〇 (19.8) |
| Factory *2 | Test data | Adjustable range High - Low *3 |
Drivable range High - Low *4 |
||
|---|---|---|---|---|---|
| FRONT | Ride height *1 | 649 | ← | 660 ～ 633 | 660 ～ 639 |
| Against stock | -23 | ← | -11 ～ -39 | -11 ～ -33 | |
| REAR | Ride height *1 | 650 | ← | 675 ～ 626 | 675 ～ 626 |
| Against stock | -28 | ← | -3 ～ -52 | -3 ～ -52 | |
*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) | 118 ( 12.0 ) | 98 ( 10.0 ) |
| Free height (mm) | 150 | 150 |
| 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* | 1172 / 530 | 294 / 280 |
| Default position of dial | 15 | 15 |
| Remaining damper stroke (Rebound/Damping)mm | 53 / 46 | 77 / 72 |
* 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) |
306 | ← | 306 | 306 | 399 | ← | 411 | 373 |
| Spring Set length(mm) |
203 | ← | 192 | 213 | - | - | - | - |
| Length to ride hight adjuster (mm) |
52 | ← | 63 | 42 | 47 | ← | 66 | 29 |
| Lever ratio | 1.00 | 1.34(spg) , 0.93(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 | 873 (860) | 529 (530) | |
| Tire size (Air pressure) kPa | 265 / 35 - 18 ( 200 ) | 265 / 35 - 18 ( 200 ) | |
| Wheel size | 9.5 JJ × 18 inset 45 | 9.5 JJ × 18 inset 45 | |
| Alignment (Toe/Camber) |
Test data | out 0.5mm / -3°45' | 0 mm / -2°32' |
| Standard value | in 0 ± 2 mm / -1°20' ± 30' | in 2 + 2 -1 mm / -1°30' ± 45' | |
* Test data at HKS.
Parts List * It may be changed without prior notice.
Point
The kit was tested with ADVAN A052 Tires(235/40R18) at Fuji Speedway Racing Course.
Spring rates are thoroughly tested. This setting allows the driver to control Civic R easily by changing its movement at their will.
Although the FK8 Civic R has a basic understeer movement, we have made settings that allow the driver to change direction as much as possible, so that the driver can feel comfortable under tracking.
Since the FK8 makes it easier to change the direction of the car by actively shifting the load, increasing the front spring rate will bring out stronger understeer movement.
The newly adopted oil makes a large range of dial adjustment, allowing the users to set the movement they like.
Even though this kit has such sport driving performance, we also pursuit the comfort which is as good as high-performance shock absorber in city driving. With just a dial adjustment, this kit can perform as urban cruiser.
For those who install size 295 in the front or A052 or higher high-grip tires, a spring rate increase from 2 kg to 4 kg in the front and 2 kg in the rear is recommended.
With stock tire wheels installed, if the front is lower than 42mm, the tires and suspension will interfere around the maximum steering angle. Please note that this will vary depending on the rim width and offset of the wheel.
(The error that appears when the stock suspension is removed can be avoided by installing an optional canceller.) ※We will be on sale.
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