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IMPREZA WRX STI
IMPREZA WRX STI GDB

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Code No. 80300-AF003

 

  

Going beyond just ride comfort or handling performance, a new standard of "Driving Comfort" aims for comfort in ride but also in the peace of mind generated by handling performance and drivability . An uncompromising balance which delivers on all the demands of street driving.

 

 

The model in the photo is GDB(F).

 

 

Application

Engine EJ20(TURBO)
Model Year 04/06 - 07/06
Remarks  

Specification

  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket
Upper mount Rubber Rubber
Inverted/Normal type Inverted Inverted
Damper/Spring layout Coilover Coilover
Spring rate change at factory Impossible Impossible
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 *1 657 688 ~ 636 688 ~ 644
Against stock -36 -5 ~ -57 -5 ~ -49
REAR Ride height *1 645 662 ~ 581 662 ~ 592
Against stock -22 -5 ~ -86 -5 ~ -75

*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) 69 ( 7.0 ) 49 ( 5.0 )
Free height (mm) 220 250
Spring type Straight Barrel type Straight Barrel type
Recommended range to change spring rate N/mm(kgf/mm) - -

Specification of damper

  F R
Damping force (Rebound/Damping)N* 873 / 456 314 / 280
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 57 / 42 62 / 74

* 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)
286 302 286 368 369 343
Spring
Set length(mm)
249 237 261 290 275 314
Length to ride hight
adjuster (mm)
45 73 33 121 137 72
Lever ratio 1.10 1.08

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



Test vehicle information

  F R
Vehicle weight kg - (880) - (580)
Tire size (Air pressure) kPa 235 / 40 - 18 ( 230 ) 235 / 40 - 18 ( 190 )
Wheel size 8.5 JJ × 18 inset 50 8.5 JJ × 18 inset 50
Alignment
(Toe/Camber)
Test data in 0 mm / -1°48' in 1 mm / -2°00'
Standard value in 0 ± 3 mm / -0°30' ± 0°45' in 0 ± 3 mm / -1°40' ± 0°45'

* Test data at HKS.


Parts List   * It may be changed without prior notice.

 


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