Description
HKS Hipermax MAX4SP Z33
Code no. 802520-AN005
【MAX IV GT】
The sport model to have a comfortable drive even in the winding road.
Application
| Engine | VQ35DE |
|---|---|
| Model Year | 02/08 – 07/01 |
| Remarks |
Specification
| FRONT | REAR | |
|---|---|---|
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | – | – |
| Height adjustable lower bracket | 〇 | 〇 |
| Upper mount | Spherical bearing | Spherical bearing |
| Inverted/Normal type | Normal | 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 | 667 | 638 ※1 | 677 ～ 638 | 677 ～ 638 |
| Against stock | -10 | -39 ※1 | 0 ～ -39 | 0 ～ -39 | |
| REAR | Ride height *1 | 677 | 644 ※1 | 699 ～ 645 | 699 ～ 645 |
| Against stock | -22 | -55 ※1 | 0 ～ -54 | 0 ～ -54 | |
*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) | 137 ( 14 ) | 157 ( 16 ) |
| Free height (mm) | 200 | 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* | 2810 / 584 | 868 / 334 |
| Default position of dial | 15 | 15 |
| Remaining damper stroke (Rebound/Damping)mm | 57 / 33 | 63 / 73 |
* 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) | 485 | 471 | 491 | 471 | 350 | 320 | 368 | 315 |
| Spring Set length(mm) | 238 | ← | ← | ← | – | – | – | – |
| Length to ride hight adjuster (mm) | 48 | 34 | 54 | 34 | 36 | 24 | 51 | 20 |
| Lever ratio | 1.54 | 1.59(spg) , 1.18(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 | 844 (-) | 701 (-) | |
| Tire size (Air pressure) kPa | 225 / 45 – 18 ( 230 ) | 245 / 45 – 18 ( 230 ) | |
| Wheel size | 8.0 JJ × 18 inset 30 | 8.5 JJ × 18 inset 33 | |
| Alignment (Toe/Camber) | Test data | in 0 mm / -1°30′ | in 0 mm / -2°30′ |
| Standard value | in 0 ～ 2 mm / -0°40′ ± 0°45′ | in 1 ～ 3 mm / -1°35′ ± 0°30′ | |
Parts List * It may be changed without prior notice.
Point
We have developed a sport damper of MAX IV SP for Z33 from the scratch.
Plan 1. Changeable rear rate.
Plan 2. Easy damping force adjustment
To have rear stability for turn-in, we setφ65 series-wound spring with helper and enough bump stroke. Also we set the rear damping force adjustment dial inside the car for fast and easy setting, so that you don’t have to get your hands dirty (need interior works). We set it smooth but firm for the comfortable drive. It’s tight but not uncomfortable and there isn’t bad up and down movement. It also recovers fast.
Preferred dial setting
0-10: Circuit or high speed drive, 11 -20: Winding roads or highway, 21 – 30: Normal drive
We recommend spring rate of 14k for rear if you don’t go to circuit. Set F16k/R18k for circuit drive. (Settings are for high-grip radial tires)
* Test tire (front & rear): 265/35-18
●Modification for installation
・Need a hole to put through the rear damping force adjustment cable.
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