MAX IV GT Spec-A LEGACY B4
Explanation of the product Application chart

LEGACY B4 BL9
MAX IV GT Spec-A Code No. 80230-AF005V
 
 


▲The above photo is an item for BP5.

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



Application   Specification
Engine EJ25(NA)
Model Year 07/11 - 08/05
Remarks Test vehicle: Type B
 
  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket
Upper mount Spherical bearing Rubber
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)
○(4.7) ○(4.7)


Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 644 670 ~ 630 670 ~ 632
Against stock -26 0 ~ -40 0 ~ -38
REAR Ride height *1 642 669 ~ 624 669 ~ 627
Against stock -27 0 ~ -45 0 ~ -42
*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) 59+19 ( 6+2=8 ) 69+19 ( 7+2=9 )
Free height (mm) 250 200
Spring type Straight Barrel type Straight
Recommended range to change spring rate N/mm(kgf/mm) +20 (-0~+2) -10+20 (-1~+2)
Specification of damper
  F R
Damping force (Rebound/Damping)N* 900 / 350 450 / 450
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 69/57(7) 49/57(2)
* 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)
276 304 266 261 280 252
Spring
Set length(mm)
279 234
Length to ride hight
adjuster (mm)
22 50 12 20 39 11
Lever ratio 1.02 1.56
* 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 225 / 40 - 18 ( 220 ) 225 / 40 - 18 ( 220 )
Wheel size 8.0 JJ × 18 off 45 8.0 JJ × 18 off 45
Alignment
(Toe/Camber)
Test data 0 mm / 1°12' 0 mm / 1°36'
Standard value 0 ± 3 mm / -0°25' ± 45' 0 ± 3 mm / -0°45' ± 45'
* Test data at HKS.


Parts List * It may be changed without prior notice.


Point
This product was developed under supervision by rally driver Mr. Toshihiro Arai. This is the ultimate suspension available for all road conditions with the stabilized road holding performance providing better ride comfort. The front and rear strokes were extended compared with MAX IV GT, and the newly developed bump rubbers act as sub-springs providing the best road holding performance in various road conditions. The damping characteristics are perfect for handling and ride quality. The spring rate is the same as MAX IV GT, and a 2kgf/mm bump rubber is utilized in a contraction side; these are for better handling and ride comfort. This product is designed to provide flat ride with supple and natural damper stroke in high quality. The front camber adjustable pillow upper mounts enable a wide range of alignment and improve integrality of the damping force.
 
 
The dial position Mr. Arai recommended for circuit driving: Drive emphasizing on FF’s characteristics: 10/7 Drive emphasizing on FR’s characteristics: 10/5
・The vehicle height except the tested height is the calculated value; therefore, actual height may be different.
Drilling a hole in the rear liner for a rear adjustment cable is required.
 
 
 
 
 


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