MAX IV GT
GS350
GS350 GRL10

MAX IV GT

Code No. 80230-AT005

*Discontinued.

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

 

 

▲The model in the photo is GRL10.

 

 

Application

Engine 2GR-FSE
Model Year 12/01 - 20/07
Remarks Developed with 350F Sport.

Specification

  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 Separated
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 *1 695 665 703 ~ 607 ※5 703 ~ 635
Against stock -11 -38 0 ~ -96 ※5 0 ~ -68
REAR Ride height *1 680 663 684 ~ 635 683 ~ 635
Against stock -35 -49 -28 ~ -77 -29 ~ -77

*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) 78 ( 8 ) 98 ( 10 )
Free height (mm) 250 220
Spring type Straight Straight Barrel type
Recommended range to change spring rate N/mm(kgf/mm) ±20 (-2~+2) -20 (0~-2)

Specification of damper

  F R
Damping force (Rebound/Damping)N* 1300 / 400 800 / 300
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 63 / 52 83 / 52

* 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)
487 468 495 457 477 460 479 445
Spring
Set length(mm)
278 278 278 289 - - - -
Length to ride hight
adjuster (mm)
84 65 92 43 72 57 74 32
Lever ratio 1.40 2.70(spg) , 1.29(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 901 (900) 836 (810)
Tire size (Air pressure) kPa 245 / 35 - 20 ( 270 ) 275 / 30 - 20 ( 270 )
Wheel size 9 JJ × 20 inset 45 10 JJ × 20 inset 45
Alignment
(Toe/Camber)
Test data 0 mm / -1°00' 2 mm / -3°00'
Standard value in 1 mm / -0°15' in 3 mm / -1°30'

* Test data at HKS.


Parts List  * It may be changed without prior notice.

 


Point

・MAX IV GT for GRL10 is set with F Sport for street drive. First we did low-down. It’s adjutable lower bracket height adjustment type, so you can set the height as you want to within the available range. It will have stock stroke feeling of softness and adjusted where there is stiffness for the best driving experience. And we have divided weight to the spring and damper for the less rolling for steering and still feel natural to human feeling. Like the stock, it has full stroke so it has no uncomfortable push and the passenger will have a comfortable ride too. Also, we have set the matching with electronic device which provide more stability and less feeling of wrongness.
 
※When Changing the stock tire and wheel, the front tire shoulder and fender easily interfere with each other that tire shoulder should be inset and the tire size should not be bigger than the stock size. For setting exactly, you might need to fold the edge of fender.
※For the tested vehicle height, the fog height does not meet the Japanese regulation. Depending on the height setting, you might need to take it off.
 
※5. For changing the bump rubber to L=5.
 First, drive with dial-15 and if you want more smooth feeling, change it to dial-30. Or if you want faster damping force or thick damping feeling, please set to dial-0. We recommend dial-0 to 5 for circuit attack.
 
 
 
 



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