MAX IV SP FAIRLADY Z
Explanation of the product Application chart

FAIRLADY Z Z34
MAX IV SP Code No. 80250-AN006
 
 


▲The above photo is an item for R35.

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



Application   Specification
Engine VQ37VHR
Model Year 08/12 - 
Remarks  
 
  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 )


Ride Height mm
  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 - -
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 MAXⅣSP 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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