MAX IV GT 20SPEC SWIFT SPORT
Explanation of the product Application chart

SWIFT SPORT ZC33S
MAX IV GT 20SPEC Code No. 80230-AS004A
 
 


▲The above photo is an item for ZC33S.

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



Application 　 Specification
Engine K14C(TURBO)
Model Year 17/09 - 
Remarks MT＆AT
　
  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket 〇 〇
Upper mount Stock Stock
Inverted/Normal type Inverted Normal
Damper/Spring layout Coilover Separated
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 *1 630 ← 658 ～ 608 658 ～ 615
Against stock -40 ← -12 ～ -62 -12 ～ -55
REAR Ride height *1 640 ← 660 ～　616※ 660 ～　616※
Against stock -35 ← -15 ～ -59 -15 ～ -59
*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) 49.0(5) 35.3 (3.6)
Free height (mm) 200 -
Spring type Straight Barrel type Special shape
Recommended range to change spring rate N/mm(kgf/mm) ±9.8 ( 1 ) -
Specification of damper
  F R
Damping force (Rebound/Damping)N* 450 / 200 200 / 130
Default position of dial 15段 15段
Remaining damper stroke (Rebound/Damping)mm 51 / 55 51 / 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) 		299 ← 327 284 367 ← 388 347
Spring
Set length(mm) 		203 ← ← ← - - - -
Length to ride hight
adjuster (mm) 		22 ← 50 7 38 ← 54 19
Lever ratio 1.02 1.25(spg) , 0.95(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 613 358
Tire size (Air pressure) kPa 205 / 45 - 17 ( 230 ) 205 / 45 - 17 ( 210 )
Wheel size 8 JJ × 17 inset 45 8 JJ × 17 inset 45
Alignment
(Toe/Camber) 		Test data out 1 mm / -1°30' in 2 mm / -1°30'
Standard value in 1 mm ±1 mm / -0°12’ ± 1°00’ in 4 mm ± 4 mm / -1°00' ± 1°00’
* Test data at HKS.


Parts List * It may be changed without prior notice.


Point
The existing MX IV GT has the best balance of comfortable ride feeling like the stock one with sporty performance. On the other hand, this 20 SPEC improved the quality of drive feeling and performance even further, from daily use to circuit driving.
Adopting new technology improved ride comfort by reducing the stiffness at a high-speed range of the rear and improving steer performance due to improved rigidity and reduced body roll of the front.
It provides improved ride comfort thanks to new setting of degressive damping force at the rear, via introduced newly developed parts and technologies. Also, improved transient characteristics of the front can be changed the spring rate and reduce the excessive vehicle movement without losing ride comfort. It also making a ride more predictable and linear making it fun to drive.
Front uses a conventional inverted type damper. It provides a firm confident ride and great steering response.
 
※6: The lowest height measurement at the rear side doesn't include the spring lock nut.
 
 
 
 
 


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