Code No. 80250-AN006
*Discontinued.
The sport model to have a comfortable drive even in the winding road.
The model in the photo is Z34.
Application
| Engine | VQ37VHR |
|---|---|
| Model Year | 08/12 - 21/09 |
| Remarks |
Specification
| FRONT | REAR | |
|---|---|---|
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | - | - |
| Height adjustable lower bracket | ○ | ○ |
| Upper mount | Spherical bearing | Rubber |
| Inverted/Normal type | Normal | Normal |
| Damper/Spring layout | Coilover | Separated |
| Spring rate change at factory | Possible | Possible |
| Damping force adjustment with wire | - | - |
| Helper spring (Spring rate N/mm) | ○ ( 19.8 ) | ○ ( 19.8 ) |
| Factory *2 | Test data | Adjustable range High - Low *3 |
Drivable range High - Low *4 |
||
|---|---|---|---|---|---|
| FRONT | Ride height *1 | 689 | ← | 703 ～ 669 | 703 ～ 669 |
| Against stock | -14 | ← | 0 ～ -34 | 0 ～ -34 | |
| REAR | Ride height *1 | 690 | ← | 708 ～ 657 | 708 ～ 657 |
| Against stock | -18 | ← | 0 ～ -51 | 0 ～ -51 | |
*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* | 2785 / 569 | 726 / 333 |
| Default position of dial | 15 | 15 |
| Remaining damper stroke (Rebound/Damping)mm | 55 / 35 | 77 / 58 |
* 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) |
428 | ← | 436 | 421 | 381 | 381 | 395 | 364 |
| Spring Set length(mm) |
239 | ← | 239 | 244 | - | - | - | - |
| Length to ride hight adjuster (mm) |
64 | ← | 72 | 52 | 35 | 35 | 46 | 15 |
| Lever ratio | 1.67 | 1.67(spg) , 1.28(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 | - (840) | - (670) | |
| Tire size (Air pressure) kPa | 245 / 35 - 20 ( 280 ) | 285 / 30 - 20 ( 290 ) | |
| Wheel size | 9.5 JJ × 20 inset 40 | 10.5 JJ × 20 inset 30 | |
| Alignment (Toe/Camber) |
Test data | 0 mm / -1°18' | in 1 mm / -2°24' |
| Standard value | in 3.0 ～ in 1.0 mm / -0°45' ± 0°45' | in 5.4 ～ 2.0 mm / -1°45' ± 0°30' | |
* Test data at HKS.
Parts List * It may be changed without prior notice.
Point
・The high rating MAXⅣSP for Z33 is also available for Z34 now. This suspension kit is designed for high-grip radial tires which can be used on circuits.
・It is common to use a specially shaped spring for separated suspension. Consider of changing the spring rates in this sports suspension kit. The retainer type for straight coil spring in MAX IV SP Z33 is used in this set up.
・Suitable damper setting reduces unnecessary movement in sports use, which also improves drivability and creates more grips on tires with fast response in cornering. Smooth and firmly feeling is defined in this set up.
・By adjusting the damper softer, it eliminates the stiffness for daily uses. Also, it absorbs the shock from upthrusts to an acceptable level on normal streets.
・Recommended dial setting for circuit is 0~10, winding road and high speed is 10~20, normal street is 20~30.
・For those who are aiming for driving at international class circuits, it is recommended to give up the ride comfort and upgrade the spring rate by 2mm/kg to be more steady.
・High-grip radial tires are used in the test circuit. We recommend to install the size that is matching the stock tire outer diameter. Also, enhancing the water and oil cooling system and installing the LSD are recommended.
●Required Modification for Installation
Vehicle's interior modification is required to install the adjustment dial for rear damping force.
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