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HKS Hipermax MAX IV SP DRAG Nissan GT-R

HKS Hipermax MAX IV SP DRAG Nissan GT-R



Return of Drag Specification Dampers
Introducing the latest technologies to suit modern drag racing requirements

The drag suspension designed based on HIPERMAX II Drag Suspension.
Parts such 300mm long spring, helper spring, etc. are selected for each vehicle model to maintain sufficient stroke amount and traction.
The shock-body length adjustable type is chosen to widen the vehicle height setting range and stroke distribution.
This drag suspension guarantees its performance in drag race.

Single Tube Damper Design
The single tube damper design was selected from well-established HKS suspension.
Its large diameter piston contribute excellent response and traction assurance.
Dust Boot
Protect the shaft from the flying stones.
PNE Coating
Using this special surface coating provides 5 times better durability over standard galvanizing. This prevents build-up around the threads of the adjustment areas allowing for easier height adjustment.
Pillow Ball Upper Mount
With the pillow ball upper mount, the shock absorber detects fine movement and generates accurate damping force from the beginning of stroke. Unnecessary movement is reduced and stable driving is possible.
New Design Needle
Newly designed needle has been utilized to adjust the damping characteristics of the very low speed and middle and high speed dampening to pursue the linear change across entire speed range.
Reduction of Unsprung Weight
In order to reduce unsprung weight, bracket, ride height adjusters and lock nuts are made from aluminum. (Not for all vehicles)
30 Step Damping Force Adjustment
30 levels of dampening adjustment allow fine tune adjustment for each tire and course conditions.

In stock


MAX IV SP DRAG Code No. 80250-AN001D


80250 an001d kit
▲The above photo is an item for R35.
Return of Drag Specification Dampers. Introducing the latest technologies to suit modern drag racing requirements.


Application Specification
Engine VR38DETT
Model Year 07/12 –
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 Coilover
Spring rate change at factory
Damping force adjustment with wire
Helper spring
(Spring rate N/mm)
○ ( 19.8 )


Ride Height mm
Factory *2 Test data Adjustable range
High – Low *3
Drivable range
High – Low *4
FRONT Ride height *1 728 728 ~ 621 728 ~ 693
Against stock +5 +5 ~ -102 +5 ~ -30
REAR Ride height *1 715 732 ~ 659 732 ~ 661
Against stock -17 0 ~ -73 0 ~ -71
*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
Spring rate N/mm(kgf/mm) 98 (10) 68 (7)
Free height (mm) 250 250
Spring type Straight Straight
Recommended range to change spring rate N/mm(kgf/mm) ±20 ( 2 ) ±20 ( 2 )
Specification of damper
Damping force (Rebound/Damping)N* 630 / 930 4500 / 280
Default position of dial 15段 15段
Remaining damper stroke (Rebound/Damping)mm 67 / 49 73 / 86
* The value of the damping force is at piston speed of 0.1m/sec.
Setting data
Default Test Drivable limit
High *
Drivable limit
Low *
Default Test Drivable limit
High *
Drivable limit
Low *
Length of
case (mm)
493 493 472 398 413 386
Set length(mm)
249 249 286 322
Length to ride hight
adjuster (mm)
77 77 56 50 65 2
Lever ratio 1.69 1.12
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.


Test vehicle information
Vehicle weight kg 0 0
Tire size (Air pressure) kPa 285 / 35 – 20 ( 200 ) 285 / 35 – 20 ( 200 )
Wheel size 10 JJ × 20 inset 42 11 JJ × 20 inset 25
Test data *** mm / -*°**’ *** mm / -*°**’
Standard value IN * ± * mm / -*°**’ ± **’ IN * ± * mm / -*°**’ ± **’
* Test data at HKS.


Parts List * It may be changed without prior notice.
80250 an001d zu1 en80250 an001d zu2 en


Drag specification dampers designed by the latest technologies using the data based on the proven performance of HIPERMAX II DRAG damper for the second generation GT-R to suit modern drag racing requirements for R35


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