HKS Hipermax Max IV 4 SP coilovers Subaru WRX STI 14-21 80250-AF003

Description

HKS Hipermax Max IV 4 SP coilovers Subaru WRX STI 14-21 80250-AF003.
Code
Name
MSRP
80250-AF003
MAXIVSP WRX STI FULL KIT
1900.00
Weight
Number of BOX
Length
Width
Height
25.80
1
565
290
410
Make
Model
Year
Engine
SUBARU
WRX 4D
2015 - 2021
FA20
Remarks
N/A
▲The above photo is an item for VAB.
The sport model to have a comfortable drive even in the winding road.
Application
Specification
Engine
EJ20(TURBO)
Model Year
14/08 -
Remarks
EJ20 6MT
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)
○ ( 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
658
←
675 ～ 599
675 ～ 607
Against stock
-17
←
0 ～ -59
0 ～ -51
REAR
Ride height *1
657
←
676 ～　604
680 ～　613
Against stock
-19
←
0 ～ -72
0 ～ -63
*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)
118 ( 12 )
98 ( 10 )
Free height (mm)
170
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*
1991 / 373
726 / 147
Default position of dial
15
15
Remaining damper stroke (Rebound/Damping)mm
54 / 59
54 / 62
* 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)
271
←
288
258
249
←
265
235
Spring
Set length(mm)
220
←
220
241
223
←
223
244
Length to ride hight
adjuster (mm)
53
←
70
19
42
←
58
7
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
245 / 40 - 18 ( 230 )
245 / 40 - 18 ( 220 )
Wheel size
8.5 JJ × 18 inset 55
8.5 JJ × 18 inset 55
Alignment
(Toe/Camber)
Test data
0 mm / -4°00'
0 mm / -2°18'
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
・Set up for driving in the circuit with high grip radial tire. For sporty drive set up dial at F-10 to 15 and R-15. For street drive set up dial at F-20 and R-20.
・We get rid of front damper's thrust feeling at turn-in and give mild and natural steering feeling.
・When approaching corner without braking, you can control rear tire surface pressure by accelerator-off timing and adjusting to have small over steering.
・Can have traction by transferring weight to rear side from the mid RPM boost. It will have sharp acceleration without push-under by link between fast acceleration-on with not moving steering for rear kick-start.
・It has helper spring in the front and rear for it could be impossible to have enough stroke without high rate helper. Therefore they grasp the street surface for stable traction and safe braking.
・Please be careful inside rim or side wall for interfering when having big tires because the front damper spring and ride are very close to tires.
・We set the short stabilink together for front. However if you make the front case longer than 274mm, please use the stock stabilink.
・The alignment data for lower camber adjusting bolt of front strut to the maximum negative, and also upper adjustment is set to maximum negative side.
・Tire sizes are 265/35-18 high grip radial for circuit test.