MAX IV GT 20SPEC ALTO WORKS
Explanation of the product Application chart

ALTO WORKS HA36S
MAX IV GT 20SPEC Code No. 80230-AS005A
 
 


▲The above photo is an item for HA36S.

An updated MAX IV GT with improved handling and comfort, an ulimate street suspension.
For 4WD



Application 　 Specification
Engine R06A
Model Year 15/12 - 
Remarks For 4WD
　
  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket 〇 ×
Upper mount Stock Stock
Inverted/Normal type Inverted Normal
Damper/Spring layout Coilover Coilover
Spring rate change at factory Possible Impossible
Damping force adjustment with wire - -
Helper spring
(Spring rate N/mm) 		- -


Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3 		Drivable range
High - Low *4
FRONT Ride height *1 593 ← 625 ～ 568 625 ～ 568
Against stock -33 ← -1 ～ -58 -1 ～ -58
REAR Ride height *1 599 ← 609 ～　589 609 ～　589
Against stock -30 ← -20 ～ -40 -20 ～ -40
*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) 29 ( 3.0 ) 27 ( 2.8 )
Free height (mm) 220 -
Spring type Straight Barrel type Special shape
Recommended range to change spring rate N/mm(kgf/mm) +10 ( 1 ) -
Specification of damper
  F R
Damping force (Rebound/Damping)N* 236 / 123 157 / 98
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 55 / 58 58 / 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) 		280 ← 285 263 294 ← 294 ←
Spring
Set length(mm) 		215 ← 188 223 - - - -
Length to ride hight
adjuster (mm) 		51 ← 83 26 10 ← 20 0
Lever ratio 1.00 1.00(spg）,0.83(dmp)
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.


Test vehicle information
  F R
Vehicle weight kg 459 300
Tire size (Air pressure) kPa 165 / 55 - 15 ( 240 ) 165 / 55 - 15 ( 240 )
Wheel size 5.0 JJ × 15 inset 45 5.0 JJ × 15 inset 45
Alignment
(Toe/Camber) 		Test data 0 mm / -1°00' 0 mm / 0°00'
Standard value in 1 ± 1 mm / 0°00' ± 1°00' in 0 ± 5 mm / 0°00' ± 1°00'
* Test data at HKS.


Parts List * It may be changed without prior notice.


Point
20 SPEC for Alto Works has been added to our product line.
We have aimed to realize a flexible suspension that ensures smooth and stable driving even with lightweight vehicles by employing many of more flexible valves than the ones used in the existing model.
By using high flow needle for the damping adjustment part, it allows to offer wider range of damping adjustment to correspond to various driving situations.
Since the rear bump rubbers are made of hard rubber, pursuing ride comfort was not an easy task. However, by applying the maximum damping force to the contracting side of the damper and with the optimal spring rate, we have realized to secure the ride comfort.
Although the rear spring space of this vehicle is very narrow, having introduced a spacer adjustment method enables the adjustment by 10mm.
Please refer to the manual upon installation since modification of the OEM rear bump rubbers may be required depending on the ride height at the installation.
 
 
 
 
 


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