HKS Hipermax IV SP Suspension Nissan GT-R R35

Code No. 80250-AN001

▲The above photo is an item for GRB.

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

Application

Specification

Engine

VR38DETT

Model Year

07/12 -

Remarks

FRONT

REAR

Damping force adjustment

30 steps

30 steps

Base valve

-

-

Height adjustable lower bracket

○

○

Upper mount

Spherical bearing

Spherical bearing

Inverted/Normal type

Normal

Normal

Damper/Spring layout

Coilover

Coilover

Spring rate change at factory

○

○

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

704

←

723 ～ 632

723 ～ 650

Against stock

-19

←

0 ～ -91

0 ～ -73

REAR

Ride height *1

715

←

732 ～ 664

732 ～ 689

Against stock

-17

←

0 ～ -68

0 ～ -43

*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)

157 ( 16 )

118 ( 12 )

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*

3000 / 410

900 / 360

Default position of dial

15

15

Remaining damper stroke (Rebound/Damping)mm

50 / 49

85 / 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)

481

←

492

472

410

←

422

386

Spring
Set length(mm)

238

←

238

272

326

←

326

326

Length to ride hight
adjuster (mm)

59

←

70

16

26

←

41

2

Lever ratio

1.69

1.12

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

Test vehicle information

F

R

Vehicle weight kg

-

-

Tire size (Air pressure) kPa

285 / 35 - 20 ( 200 )

285 / 35 - 20 ( 200 )

Wheel size

10 JJ × 20 inset 42

11 JJ × 20 inset 25

Alignment
(Toe/Camber)

Test data

0 mm / -1°30'

in 2 mm / -1°30'

Standard value

-

-

* Test data at HKS.

Parts List * It may be changed without prior notice.

Point

More advanced version of very famous HIPERMAX III Sport09 which supported many records in the circuit racing.
We have tested in circuit as well as the street and could have improved stability of rear which HIPERMAX III Sport09 lacked a little. Therefore rear tires have better grounding and roll stiffness which results in improved rear traction and absorption at a high speed driving. Once you experience the new MAX IV SP, we are sure that you can feel the difference from the Sport09.
However we also set for a comfortable ride in the street.
MAX IV SP is the perfect for the circuit and high speed driving.