Code No. 80230-AS004A
*Discontinued.
An updated MAX IV GT with improved handling and comfort, an ulimate street suspension.
▲The above photo is an item for ZC33S.
Application
| Engine | K14C(TURBO) |
|---|---|
| Model Year | 17/09 - |
| Remarks | MT＆AT |
Specification
| FRONT | REAR | |
|---|---|---|
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | - | - |
| Height adjustable lower bracket | 〇 | 〇 |
| Upper mount | Stock | 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 | 630 | ← | 658 ～ 608 | 658 ～ 615 |
| Against stock | -40 | ← | -12 ～ -62 | -12 ～ -55 | |
| REAR | Ride height *1 | 640 | ← | 660 ～ 616 ※5 | 660 ～ 616 ※5 |
| Against stock | -35 | ← | -15 ～ -59 | -15 ～ -59 | |
*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.)
※5. The lowest height measurement at the rear side doesn't include the spring lock nut.
Caution). Actual data depends on each vehicle.
Kit information
Spring of Full Kit
| F | R | |
|---|---|---|
| Spring rate N/mm(kgf/mm) | 49.0(5) | 35.3 (3.6) |
| Free height (mm) | 200 | - |
| Spring type | Straight Barrel type | Special shape |
| Recommended range to change spring rate N/mm(kgf/mm) | ±9.8 ( 1 ) | - |
Specification of damper
| F | R | |
|---|---|---|
| Damping force (Rebound/Damping)N* | 450 / 200 | 200 / 130 |
| Default position of dial | 15 | 15 |
| Remaining damper stroke (Rebound/Damping)mm | 51 / 55 | 51 / 65 |
* 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) |
299 | ← | 327 | 284 | 367 | ← | 388 | 347 |
| Spring Set length(mm) |
203 | ← | ← | ← | - | - | - | - |
| Length to ride hight adjuster (mm) |
22 | ← | 50 | 7 | 38 | ← | 54 | 19 |
| Lever ratio | 1.02 | 1.25(spg) , 0.95(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 | 613 (620) | 358 (350) | |
| Tire size (Air pressure) kPa | 205 / 45 - 17 ( 230 ) | 205 / 45 - 17 ( 210 ) | |
| Wheel size | 8 JJ × 17 inset 45 | 8 JJ × 17 inset 45 | |
| Alignment (Toe/Camber) |
Test data | out 1 mm / -1°30' | in 2 mm / -1°30' |
| Standard value | in 1 mm ±1 mm / -0°12' ± 1°00' | in 4 mm ± 4 mm / -1°00' ± 1°00' | |
* Test data at HKS.
Parts List * It may be changed without prior notice.
Point
The existing MAX IV GT has the best balance of comfortable ride feeling like the stock one with sporty performance. On the other hand, this 20 SPEC improved the quality of drive feeling and performance even further, from daily use to circuit driving.
Adopting new technology improved ride comfort by reducing the stiffness at a high-speed range of the rear and improving steer performance due to improved rigidity and reduced body roll of the front.
It provides improved ride comfort thanks to new setting of degressive damping force at the rear, via introduced newly developed parts and technologies. Also, improved transient characteristics of the front can be changed the spring rate and reduce the excessive vehicle movement without losing ride comfort. It also making a ride more predictable and linear making it fun to drive.
Front uses a conventional inverted type damper. It provides a firm confident ride and great steering response.
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