Awesome control and comfort ride on the street for a sporty drive. The new Max IV sporty suspension.
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
Rubber
Rubber
Inverted/Normal type
Normal
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
711
←
723 ~ 645
723 ~ 645
Against stock
-12
←
0 ~ -78
0 ~ -78
REAR
Ride height *1
719
←
732 ~ 662
732 ~ 675
Against stock
-13
←
0 ~ -70
0 ~ -57
*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 )
78 ( 8 )
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*
1300 / 250
700 / 160
Default position of dial
15
15
Remaining damper stroke (Rebound/Damping)mm
35 / 65
73 / 97
* 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)
474
←
481
470
417
←
429
385
Spring Set length(mm)
225
←
225
260
318
←
318
325
Length to ride hight adjuster (mm)
65
←
72
26
51
←
63
12
Lever ratio
1.69
1.12
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.
Parts List * It may be changed without prior notice.
Point
・HKS has set the MAX IV for both sportiness and comfort. ・We haven't spoiled stock's sportiness and improved the comfortable drive and also provides better control. ・We have improved the driving experience drastically compared to the old model by analyzing year 2012 model and VPS and new piston. ・We have improved driving performance of road-hugging property by high-rate + helper-spring. And improving the start-up damping allow comfortable drive and keep down the sudden pressure change. ・Set about 20th step for a comfort drive and about 5th step for a fast drive. ・If the length of case shortens below the lower limit value, it is likely to interfere with the upper arm and body. Also depend on the size of the tire wheel, it could interfere with fender even within the limits.
For over 40 years, HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 40+ years.
This product is compatible with the following vehicles
Vehicle Make
Vehicle Model
Vehicle Variant
From
To
Engine
Notes
Nissan
GT-R
R35
2009
2011
VR38DETT
3.8L - 4WD Petrol
Nissan
GT-R
R35
2010
2011
VR38DETT
3.8L SpecV - 4WD Petrol
Nissan
GT-R
R35
2010
2012
VR38DETT
3.8L - 4WD Petrol
Nissan
GT-R
R35
2011
VR38DETT
3.8L - 4WD Petrol
Whether it is engine, exhaust, suspension, or drive-train systems, there is no substitute for the performance, quality and reliability of HKS. Part-Box/Co-ordSport are an approved distributor for HKS performance and tuning products.
For over 35 years, HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 35+ years.