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Details
Code No. 80230-AF002V
▲The above photo is an item for GDB・GDA・GGA.
Ultimate Street Damper with Latest Theory Based on MAX IV GT
Application
Specification
Engine
EJ20(TURBO)
Model Year
00/10 - 04/05
Remarks
FRONT
REAR
Damping force adjustment
30 steps
30 steps
Base valve
-
-
Height adjustable lower bracket
○
○
Upper mount
Spherical bearing
ゴム固定
Inverted/Normal type
Inverted
Inverted
Damper/Spring layout
Coilover
Coilover
Spring rate change at factory
Possible
Possible
Damping force adjustment with wire
-
-
Helper spring
(Spring rate N/mm)
○(4.7)
○(19.8)
Ride Height
mm
Factory *2
Test data
Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT
Ride height *1
642
←
693 ～ 635
693 ～ 637
Against stock
-46
←
0 ～ -58
0 ～ -56
REAR
Ride height *1
638
←
667 ～ 628
667 ～ 634
Against stock
-28
←
0 ～ -38
0 ～ -33
*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)
59+19 ( 6+2=8 )
38+19 ( 4+2=6 )
Free height (mm)
250
250
Spring type
Straight
Straight Barrel type
Recommended range to change spring rate N/mm(kgf/mm)
±20 ( 2 )
＋20 ( 2 )
Specification of damper
F
R
Damping force (Rebound/Damping)N*
820 / 400
400 / 220
Default position of dial
15
15
Remaining damper stroke (Rebound/Damping)mm
70/56(6)
78/91(11)
* 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)
294
←
336
285
343
←
369
340
Spring
Set length(mm)
282
←
←
←
297
←
←
295
Length to ride hight
adjuster (mm)
22
←
64
13
122
←
148
117
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
897
612
Tire size (Air pressure) kPa
235 / 40 - 18 ( 220 )
235 / 40 - 18 ( 220 )
Wheel size
8.5 JJ × 18 off 50
8.5 JJ × 18 off 50
Alignment
(Toe/Camber)
Test data
0 mm / -1°12'
+2 mm / -1°48'
Standard value
0 ± 3 mm / -0°30' ± 45'
0 ± 3 mm / -1°40' ± 45'
* Test data at HKS.
Parts List * It may be changed without prior notice.
Point
"Ultimate Street Damper" developed for VAB model under supervision by rally driver Mr. Toshihiro Arai. Maintaining handlability and stability to enjoy driving on various road conditions were focused to develop this damper. Then, the genuine damper delivering the best ride comfort not only for the driver but also passengers was developed. The damping force tends to be stiff to secure the ride quality; however, it may cause the reduction of the tire’s surface pressure resulting in lowering the limit grip force. Also, the ride quality may deteriorate due to the vertical G force. Reviewing the geometry and stroke, establishing required spring rate and damping force, completely eliminating unnecessary elements achieved the handlability and stability in a hi...
▲The above photo is an item for GDB・GDA・GGA.
Ultimate Street Damper with Latest Theory Based on MAX IV GT
Application
Specification
Engine
EJ20(TURBO)
Model Year
00/10 - 04/05
Remarks
FRONT
REAR
Damping force adjustment
30 steps
30 steps
Base valve
-
-
Height adjustable lower bracket
○
○
Upper mount
Spherical bearing
ゴム固定
Inverted/Normal type
Inverted
Inverted
Damper/Spring layout
Coilover
Coilover
Spring rate change at factory
Possible
Possible
Damping force adjustment with wire
-
-
Helper spring
(Spring rate N/mm)
○(4.7)
○(19.8)
Ride Height
mm
Factory *2
Test data
Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT
Ride height *1
642
←
693 ～ 635
693 ～ 637
Against stock
-46
←
0 ～ -58
0 ～ -56
REAR
Ride height *1
638
←
667 ～ 628
667 ～ 634
Against stock
-28
←
0 ～ -38
0 ～ -33
*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)
59+19 ( 6+2=8 )
38+19 ( 4+2=6 )
Free height (mm)
250
250
Spring type
Straight
Straight Barrel type
Recommended range to change spring rate N/mm(kgf/mm)
±20 ( 2 )
＋20 ( 2 )
Specification of damper
F
R
Damping force (Rebound/Damping)N*
820 / 400
400 / 220
Default position of dial
15
15
Remaining damper stroke (Rebound/Damping)mm
70/56(6)
78/91(11)
* 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)
294
←
336
285
343
←
369
340
Spring
Set length(mm)
282
←
←
←
297
←
←
295
Length to ride hight
adjuster (mm)
22
←
64
13
122
←
148
117
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
897
612
Tire size (Air pressure) kPa
235 / 40 - 18 ( 220 )
235 / 40 - 18 ( 220 )
Wheel size
8.5 JJ × 18 off 50
8.5 JJ × 18 off 50
Alignment
(Toe/Camber)
Test data
0 mm / -1°12'
+2 mm / -1°48'
Standard value
0 ± 3 mm / -0°30' ± 45'
0 ± 3 mm / -1°40' ± 45'
* Test data at HKS.
Parts List * It may be changed without prior notice.
Point
"Ultimate Street Damper" developed for VAB model under supervision by rally driver Mr. Toshihiro Arai. Maintaining handlability and stability to enjoy driving on various road conditions were focused to develop this damper. Then, the genuine damper delivering the best ride comfort not only for the driver but also passengers was developed. The damping force tends to be stiff to secure the ride quality; however, it may cause the reduction of the tire’s surface pressure resulting in lowering the limit grip force. Also, the ride quality may deteriorate due to the vertical G force. Reviewing the geometry and stroke, establishing required spring rate and damping force, completely eliminating unnecessary elements achieved the handlability and stability in a hi...
More Info
| Manufacturer | HKS |
|---|---|
| Fitment | N/A |
| Colour | N/A |
| Note | N/A |
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Finance provided by PayPal Credit. Terms and conditions apply. Credit subject to status, UK residents only, Tegiwa Imports LTD acts as a broker and offers finance from a restricted range of finance providers. PayPal Credit is a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH.
Finance provided by PayPal Credit. Terms and conditions apply. Credit subject to status, UK residents only, Tegiwa Imports LTD acts as a broker and offers finance from a restricted range of finance providers. PayPal Credit is a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH.