S
GR86
GR86 ZN8

S

Code No. 80300-AT027

 

  

Going beyond just ride comfort or handling performance, a new standard of "Driving Comfort" aims for comfort in ride but also in the peace of mind generated by handling performance and drivability . An uncompromising balance which delivers on all the demands of street driving.

 

 

 

 

Application

Engine FA24
Model Year 21/10 - 
Remarks SZ 18 inch MT

Specification

  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket
Upper mount Spherical bearing Rubber
Inverted/Normal type Inverted Normal
Damper/Spring layout Coilover Coilover
Spring rate change at factory Possible Possible
Damping force adjustment with wire - -
Helper spring
(Spring rate N/mm)
- 〇 (19.8)
Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 644 670 ~ 614 670 ~ 614
Against stock -26 0 ~ -56 0 ~ -56
REAR Ride height *1 647 675 ~ 614 675 ~ 614
Against stock -28 0 ~ -61 0 ~ -61

*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 ( 5.0 ) 64 ( 6.5 )
Free height (mm) 170 170
Spring type Straight Barrel type Straight Barrel type
Recommended range to change spring rate N/mm(kgf/mm) +20 ( 2 )※5 +15(1.5) ,-15(1.5)※5

Specification of damper

  F R
Damping force (Rebound/Damping)N* 392 / 387 432 / 495
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 42 / 45 53 / 53

* 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)
224 250 204 249 271 235
Spring
Set length(mm)
160 160 170 214 214 226
Length to ride hight
adjuster (mm)
45 71 15 36 58 10
Lever ratio 1.00 1.26

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



Test vehicle information

  F R
Vehicle weight kg - -
Tire size (Air pressure) kPa 215 / 40 - 18 ( 240 ) 215 / 40 - 18 ( 240 )
Wheel size 7.5 JJ × 18 inset 48 7.5 JJ × 18 inset 48
Alignment
(Toe/Camber)
Test data out 1 mm / -2°00' in 1 mm / -2°00'
Standard value in 0 ± 2 mm / 0°00' ± 0°45' in 2 ± 2 mm / -1°10' ± 0°45'

* Test data at HKS.


Parts List   * It may be changed without prior notice.

 

Point

  • Although the suspension design is the same as the 1st gen 86/BRZ and 2nd gen BRZ, the coilover has been re-tuned specifically to enhance the characteristics of the GR86 since the OEM suspension settings are different for each car model.
  • After much trial and error in selecting the spring rate, we decided to use a newly designed rear spring which is different from the 1st gen 86/BRZ (80300-AT001 F:5.0k, R:5.0k) and 2nd gen BRZ (80300-AF020 F:5.0k, R:6.0k), and set the spring rate at F:5.0k, R:6.5k for the GR86. 
  • It does not spoil the characteristics of GR 86, which has sharper handling performance than the 2nd gen BRZ.
  • The shock absorber with 30 adjustable damping force adjustment dials allows the driver to ride comfortably and smoothly on daily driving with the soft setting, and to enjoy performance driving with the hard setting.
  • The test was conducted with the stock 17-inch tires as well as the ADVAN FLEVA (performance summer tire) and ADVAN NEOVA (track day and competition summer tire).
  • Highly durable with a three-year warranty by using the latest internal components.

[ CLOSE ]

 

 

HKS