MAX IV GT ROADSTER
Explanation of the product Application chart

ROADSTER ND5RC
MAX IV GT Code No. 80230-AZ003
 
 


▲The above photo is an item for ND5RC.

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



Application   Specification
Engine P5-VP,P5-VPR
Model Year 15/05 - 
Remarks This product was developed with Special Package MT and Leather Package AT.
Default setting is for a manual transmission vehicle.
 
  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)
- ○ ( 4.7 )


Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 612 655 ~ 555 655 ~ 580
Against stock -43 0 ~ -100 0 ~ -75
REAR Ride height *1 617 658 ~ 546 658 ~ 570
Against stock -41 0 ~ -112 0 ~ -88
*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) 39 ( 4 ) 39 ( 4 )
Free height (mm) 220 170
Spring type Straight Barrel type Straight
Recommended range to change spring rate N/mm(kgf/mm) ±20 ( 2 ) ±10 ( 1 )
Specification of damper
  F R
Damping force (Rebound/Damping)N* 450 / 400 250 / 250
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 59 / 56 85 / 65
* 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)
350 381 330 345 382 310
Spring
Set length(mm)
197 200 239 247
Length to ride hight
adjuster (mm)
48 79 25 123 160 80
Lever ratio 1.40 1.10
* 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 195 / 50 - 16 ( 198 ) 195 / 50 - 16 ( 198 )
Wheel size 6.5 JJ × 16 inset 45 6.5 JJ × 16 inset 45
Alignment
(Toe/Camber)
Test data +0mm / -1°00' +0 mm / -2°19'
Standard value IN 1.6 ± 2 mm / -0°30' ± 45' IN 3 ± 2 mm / -1°23' ± 45'
* Test data at HKS.


Parts List * It may be changed without prior notice.


Point
Refined low-stance is created while maintaining the factory's supple ride feeling. Appropriate amount of roll backed up with a supportive and stable feeling creates secure and predictable handling. Some professional drivers tried this product for magazine articles and praised it for the highly reliable controllability. The gradual damping force and natural roll are focused while driving with this product. The product provides a great ride quality not only for those who enjoy street driving but also circuit driving.
(※To avoid a feeling the stiffness at a large gap, reduce the spring rate by 1kg; the rear stability may be the same as the stock, but the ride comfort will be improved.)
 
※If the front stabilizer is replaced with a bigger one, make sure the stabilizer does not come in contact with the damper.
※For an automatic transmission vehicle, resetting referring to the data shown in the provided manual is required for the optimal performance.
 
 
 
 
 
 


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