MAX IV GT SKYLINE
Explanation of the product Application chart

SKYLINE HV37
MAX IV GT Code No. 80230-AN011
 
 


▲The above photo is an item for HV37.

Awesome control and comfort ride on the street for a sporty drive. The new Max IV sporty suspension.



Application   Specification
Engine VQ35HR(VQ35-HM34)
Model Year 13/11 - 
Remarks Not checked with 20GT-T (05/08/2014)
 
  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 )


Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 672 700 ~ 634 700 ~ 660
Against stock -28 0 ~ -66 0 ~ -40
REAR Ride height *1 668 694 ~ 633 694 ~ 647
Against stock -26 0 ~ -61 0 ~ -47
*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) 98 ( 10 ) 88 ( 9 )
Free height (mm) 220 250
Spring type Straight Barrel type Straight
Recommended range to change spring rate N/mm(kgf/mm) ±19 ( 2 ) ±9 ( 1 )
Specification of damper
  F R
Damping force (Rebound/Damping)N* 1000 / 500 500 / 400
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 54 / 51 77 / 93
* 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)
398 416 398 364 389 351
Spring
Set length(mm)
212 220 322
Length to ride hight
adjuster (mm)
87 105 80 51 76 35
Lever ratio 1.56 1.03
* 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 245 / 35 - 20 ( 270 ) 245 / 35 - 20 ( 270 )
Wheel size 9.5 JJ × 20 inset 40 9.5 JJ × 20 inset 35
Alignment
(Toe/Camber)
Test data + 2 mm / -1°30' 0 mm / -2°15'
Standard value in * ± * mm / -*°**' ± **' in * ± * mm / -*°**' ± **'
* Test data at HKS.


Parts List * It may be changed without prior notice.


Point
For normal daily drive, it's ok. But if you drive fast the ride gets a little bumpy and the rear recover too fast. So if the comfort is what you want, this could be too stiff. For the steering for a corner, as roll gets deeper and deeper, the stability and grounding is not steady and even in an extreme condition where the electric control kicks in, the vehicle goes under side and unstable as it reverse. The stock is not comfortable or safe in a high speed drive.
So we have developed MAX IV GT for cool low stance style and to support a vehicle's its maximum potential performance. We have adjusted all four wheels damping force rate, allocated stroke, vehicle height balance and etc. by doing many tests. These tests result in a stable and balanced pressure for each wheel. All these setting will provide driver the best performance of the vehicle with safety. Also we have set the damping force and piston speed for good comfort. We recommend the dial-30 for most comfortable drive.
 
 
 
 
 
 
 
 
 


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