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HKS

HKS HIPERMAX R GR86/BRZ ZN8/ZD8

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Part Number: 80310-AT006

HKS Hipermax R Coilovers for the GR86/BRZ ZN8.

If you would like to run hard on the circuit, and set quick lap times out of the box, without adjusting preload or ride height, this is the damper setup for you! With a spring rate of 9k 10k, the damping won't be too hard for the daily driver. The stiffer spring rates are well worth the feeling, and stability, for the winding roads like Angeles Crest Highway on a Friday Goodvibes Breakfast Club run.

 

Application

Engine FA24
Model Year 21/10 - 
Remarks  

 

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 Coilover
Spring rate change at factory Impossible Impossible
Damping force adjustment with wire - -
Helper spring
(Spring rate N/mm)
- 〇 (19.8)
Ride Height in mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 636 638 664 ~ 619 664 ~ 619
Against stock -28 -26 0 ~ -45 0 ~ -45
REAR Ride height *1 636 669 ~ 610 669 ~ 610
Against stock -33 0 ~ -59 0 ~ -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 Rates

  F R
Spring rate N/mm(kgf/mm) 88 ( 9.0 ) 98 ( 10.0 )
Free height (mm) 150 150
Spring type Straight Straight
Recommended range to change spring rate N/mm(kgf/mm) ±10 ( 1 ) -10(1)~+20(2)

 

Specification of damper

  F R
Damping force (Rebound/Damping)N* 941 / 520 510 / 471
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 30 / 47 47 / 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)
219 221 247 204 235 260 223
Spring
Set length(mm)
151 151 153 204 204 212
Length to ride hight
adjuster (mm)
39 41 67 22 20 45 0
Lever ratio 1 1.32

* Refer to the above explanation *3 of ride height information for drivable high and low limitations.


HKS Test vehicle information

  F R
Vehicle weight kg -  (700) -  (560)
Tire size (Air pressure) kPa 215 / 45 - 17 ( 240 ) 215 / 45 - 17 ( 240 )
Wheel size 7.5 JJ × 17 inset 48 7.5 JJ × 17 inset 48
Alignment
(Toe/Camber)
Test data out 1 mm / -3°40' in 0 mm / -2°10'
Standard value in 0 ± 2 mm / 0°00' ± 0°30' in 2 ± 2 mm / -1°10' ± 0°45'

* Test data at HKS.


 

HKS Testing Findings

The kit was tested with ADVAN A052 Tires(235/40R18) at Fuji Speedway Racing Course.
Although the GR86 has quite good driving performance in stock condition, it still has a large amount of roll when equipped with high-grip tires, which makes it feel insufficient for track.


Respecting the original character of the GR86, we have created a setting that allows RWD-like movement and fun control of the car even with high-grip tires.
We checked the movement in track mode so that even track beginners can safely enjoy controlling vehicle. 

 
This damper could satisfy both track beginners and advanced users who are aiming for breaking records. Even with one notch, you feel the change of movement strongly. With this kit, you can enjoy it from street driving to track.
By adopting the bump rubber that HKS has been researching for many years, it creates the stable feeling when cornering. It allows the tires to gain stable traction without suddenly losing grip.


For those aiming for breaking record, the front tires should be about 0.5-1.0mm toe out with full camber, and the rear tires should be about 0 to 0.5mm toe in. We recommend about 5 to 10 clicks of damping force adjustment at the front and rear.
For those who feel a lack of rear stability, we recommend installing adjustable aftermarket suspension arms to optimize rear camber.