HKS Hipermax IV SP Suspension Nissan Silvia S14 & S15

Code No. 80250-AN002

▲The above photo is an item for GRB.

The sport model to have a comfortable drive even in the winding road.

Application

Specification

Engine

SR20DE(T)

Model Year

99/01 - 02/08

Remarks

The vehicle height data is of S15(SR20DET).

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 )

Ride Height

mm

Factory *2

Test data

Adjustable range
High - Low *3

Drivable range
High - Low *4

FRONT

Ride height *1

649

641

677 ～ 596

677 ～ 630

Against stock

-28

-35

0 ～ -81

0 ～ -47

REAR

Ride height *1

646

639

682 ～ 583

682 ～ 629

Against stock

-36

-43

0 ～ -99

0 ～ -53

*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)

78 ( 8 )

49 ( 5 )

Free height (mm)

200

250

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*

1250 / 400

700 / 270

Default position of dial

15

15

Remaining damper stroke (Rebound/Damping)mm

35 / 78

81 / 84

* 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)

229

222

254

212

483

476

519

469

Spring
Set length(mm)

196

196

196

196

321

321

321

324

Length to ride hight
adjuster (mm)

48

41

73

31

163

156

199

146

Lever ratio

1.14

1.00

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

Test vehicle information

F

R

Vehicle weight kg

692

577

Tire size (Air pressure) kPa

225 / 40 - 18 ( 220 )

235 / 40 - 18 ( 220 )

Wheel size

8 JJ × 18 off 35

9 JJ × 18 off 38

Alignment
(Toe/Camber)

Test data

0 mm / -2°00'

0 mm / -2°30'

Standard value

in 2 ± 1 mm / -1°00' ± 45'

in 2.6 ± 2.6 mm / -1°25' ± 30'

* Test data at HKS.

Parts List * It may be changed without prior notice.

Point

・We have tested many times for the best setting for both of street and circuit drive based on MAX III Sport 09 with newest technology of MAX IV.
・We have tested with high-grip tires such as NEOVA 08R.

●Modification for installation
・Need a hole to put through the rear damping force adjustment cable.