MAX IV SP FAIRLADY Z
Explanation of the product Application chart

FAIRLADY Z Z33
MAX IV SP Code No. 80250-AN005
 
 


▲The above photo is an item for Z33.

The sport model to have a comfortable drive even in the winding road.



Application   Specification
Engine VQ35DE, VQ35HR
Model Year 02/07 - 08/11
Remarks  
 
  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket
Upper mount Spherical bearing Spherical bearing
Inverted/Normal type Normal Normal
Damper/Spring layout Coilover Separated
Spring rate change at factory
Damping force adjustment with wire -
Helper spring
(Spring rate N/mm)
○ ( 19.8 ) ○ ( 19.8 )


Ride Height mm
  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* 2800 / 600 1200 / 350
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)
238 238 238 238 - - - -
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 JJ × 18 inset 30 8.5 JJ × 18 inset 33
Alignment
(Toe/Camber)
Test data 0 mm / -1°30' 0 mm / -2°30'
Standard value in 0~2 mm / -0°40' ± 45' in 1~3 mm / -1°35' ± 30'
* Test data at HKS.


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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