R
WRX STI
WRX STI VAF

R

Code No. 80310-AF003

 

  

The fun to drive at will and the balance can be adapted from circuit to winding road. 
Reised Driving-Comfort, "Ultimate All-Rounder"

 

 

The model in the photo is VAB.

 

 

Application

Engine EJ25(TURBO)
Model Year 14/** - 
Remarks  

Specification

  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket
Upper mount Spherical bearing Spherical bearing
Inverted/Normal type Inverted Normal
Damper/Spring layout Coilover Coilover
Spring rate change at factory Possible Possible
Damping force adjustment with wire - -
Helper spring
(Spring rate N/mm)
〇 (19.8) 〇 (19.8)
Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 647 666 ~ 603 666 ~ 603
Against stock -19 0 ~ -63 0 ~ -63
REAR Ride height *1 652 648 666 ~ 612 666 ~ 612
Against stock -14 -18 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 ( 14.0 ) 137 ( 14.0 )
Free height (mm) 170 150
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* 1045 / 623 530 / 456
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 54 / 52 52 / 54

* 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)
280 295 258 250 247 258 235
Spring
Set length(mm)
227 223 249 214 211 231
Length to ride hight
adjuster (mm)
48 67 4 32 29 43 0
Lever ratio 1.00 1.26

* Refer to the above explanation *3 of ride height information for drivable high and low limitations.



Test vehicle information

  F R
Vehicle weight kg -  (900) -  (590)
Tire size (Air pressure) kPa 265 / 35 - 18 ( 200 ) 265 / 35 - 18 ( 200 )
Wheel size 9.5 JJ × 18 inset 45 9.5 JJ × 18 inset 45
Alignment
(Toe/Camber)
Test data out 1 mm / -5°00' in 2 mm / -2°30'
Standard value 0 ± 3 mm / -0°45' ± 30' in 3 ± 3 mm / -1°40' ± 45'

* Test data at HKS.


Parts List   * It may be changed without prior notice.

Point

- The Hipermax R is the new MAX4SP, re-designed using our latest theory.
- By newly adopting SRF (Super Response Fluid) and LVS (Low Vibration Spring), we were able to achieve both driving performance and ride comfort at an unprecedented level.
- The LVS (Low Vibration Spring) can demonstrate its performance in any situation by taking the weight of the rear damper spring on the retainer, which cancels the bending load on the spring and absorbs torsion, thereby improving tracking performance.
- New internal components allow for a wide range of settings with a large amount of dial variation.
- Exclusive color insulators with a sporty image have been added to the front and rear spring seats to create a more impressive appearance and to improve glide during ride height adjustment, making adjustment easier.
- In order to firmly meet the needs of driving on high-grip radials, which have become increasingly grippy in recent years, the ADVAN A052 was installed and tested at Fuji Speedway.
- The recommended dial setting for the Fuji Speedway test was 10-clicks front and 10-clicks rear, with plenty of room for dial tightening to accommodate LSD-equipped vehicles. Please use this as a reference when making settings.
- The front camber is set at full tilt during testing. Please be careful of interference with ABS and brake harnesses before driving.
- When extending the front case length by 4mm or more from the factory setting, please replace the sway bar links with the factory ones instead of the supplied ones.


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HKS