HKS Hipermax Max IV SP Drag DB42 Full Kit for the GR Supra 2020+

HKS Hipermax Max IV SP Drag DB42 Full Kit for the GR Supra 2020+

HKS
SKU:
80250-AT003D
$3,060.00
$3,400.00
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Description

Return of Drag Specification Dampers. Introducing the latest technologies to suit modern drag racing requirements.

 

 

▲The above photo is an item for DB42.

 

 

 

Application

Engine B58
Model Year 19/05 - 
Remarks *After lowering the vehicle height, the irradiation range of a radar and camera may become narrow that result in malfunction of TSS.

Specification

  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket ○ ○
Upper mount Spherical bearing Spherical bearing
Inverted/Normal type Inverted Normal
Damper/Spring layout Coilover Separated
Spring rate change at factory 〇 ○
Damping force adjustment with wire - ‐
Helper spring
(Spring rate N/mm)		 - -
Ride Heightmm
  Factory *2 Test data Adjustable range
High - Low *3		 Drivable range
High - Low *4
FRONT Ride height *1 665 ← 670 ～ 626 670 ～ 626
Against stock -22 ← -17 ～ -61 -17 ～ -61
REAR Ride height *1 678 ← 686 ～　623 686 ～　623
Against stock -20 ← -12 ～ -75 -12 ～ -75

 

*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 ( 6 ) 98 ( 10 )
Free height (mm) 200 250
Spring type Straight Straight
Recommended range to change spring rate N/mm(kgf/mm) ＋10(1) ±20 ( 2 )

Specification of damper

  F R
Damping force (Rebound/Damping)N* 378 / 927 3310 / 294
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 44 / 45 49 / 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)		 289 ← 289 264 323 ← 330 291
Spring
Set length(mm)		 188 ← 183 196 - - - -
Length to ride hight
adjuster (mm)		 33 ← 38 0 57 ← 62 24
Lever ratio 1.18 1.69(spg) , 1.20(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 785.5　(780) 744　(740)
Tire size (Air pressure) kPa 255 / 35 - 19 ( 220 ) 275 / 35 - 19 ( 220 )
Wheel size 9.5 J × 19 10.5 J × 19
Alignment
(Toe/Camber)		 Test data in 0 mm / -2°07' in 0 mm / -1°30'
Standard value in 3.1 mm ± 2.3 mm / -1°45' ± 0°30' in 2.7 mm ± 2.3 mm / -2°00' ± 0°25'

* Test data at HKS.

 

 

Parts List  * It may be changed without prior notice.

 

 

Point

GR Supra has a launch control to allow an excellent start. However, the stock suspension is set to assure traction in front and rear for multiple situation.
The MAX IV SP DRAG is specifically designed to provide traction on the rear tire and maintain that traction.
Bump rubber is attached to the rear shock in order to cope with the higher power and higher grip expected in the future. Bump rubber has the effect of a another spring.
The full-length adjustable suspension allows the stroke ratio (bump touch timing) to be changed without changing the vehicle height. Adjusting the shock length of the rear shock to a shorter value can delay the bump touch timing and increase the nose-up angle.
 
* This kit requires the error canceller of the stock electric shock absorber.