Code No. 86CUP-AT002
A professional series product developed for the TOYOTA GAZOO Racing GR86/BRZ Cup.
The model in the photo is ZN8.
■Summary
- This is a designated professional series product developed for the TOYOTA GAZOO Racing GR86/BRZ Cup.
- For the 2025 season, the damping force, bumper rubber, and front outer fastening structure have been revised.
- Development driver Nobuteru Taniguchi was invited to help fine-tune the product.
- Compared to the 2023 model, cornering and acceleration/deceleration feedback have been enhanced, improving both understeer and traction performance.
- The front and rear bumper rubbers are now shorter to minimize posture disturbance when driving over curbs.
- A full-length adjustable front stabilizer link is included and should be used in combination with the height-adjustable suspension.
- This product is registered under ASEA standards, with T.R.A. Approval Number T.R.A. 250220-213.
- The settings are optimized for circuit driving, so please exercise caution when driving on public roads.
- While this product can be overhauled, specification change services are not available.
Application
| Engine | FA24 |
|---|---|
| Model Year | 21/08 - |
| Remarks |
Specification
| FRONT | REAR | |
|---|---|---|
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | - | - |
| Height adjustable lower bracket | 〇 | 〇 |
| 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) | - | - |
| Factory *2 | Test data | Adjustable range High - Low *3 |
Drivable range High - Low *4 |
||
|---|---|---|---|---|---|
| FRONT | Ride height *1 | 648 | ← | 664 ～ 630 | 664 ～ 630 |
| Against stock | -16 | ← | 0 ～ -34 | 0 ～ -34 | |
| REAR | Ride height *1 | 641 | ← | 669 ～ 612 | 669 ～ 612 |
| Against stock | -28 | ← | 0 ～ -57 | 0 ～ -57 | |
*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 ( 8.0 ) | 98 ( 10.0 ) |
| Free height (mm) | 170 | 170 |
| Spring type | Straight | Straight |
| Recommended range to change spring rate N/mm(kgf/mm) | - | - |
Specification of damper
| F | R | |
|---|---|---|
| Damping force (Rebound/Damping)N* | 1148 / 525 | 848 / 525 |
| Default position of dial | 15 | 15 |
| Remaining damper stroke (Rebound/Damping)mm | 36 / 51 | 25 / 46 |
* 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 | ← | 235 | 201 | 243 | ← | 250 | 222 |
| Spring Set length(mm) |
170 | ← | 170 | 170 | 169 | ← | 155 | 170 |
| Length to ride hight adjuster (mm) |
33 | ← | 49 | 15 | 35 | ← | 56 | 13 |
| Lever ratio | 1.00 | 1.32 | ||||||
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.
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 44 | 7.5 JJ × 17 inset 44 | |
| Alignment (Toe/Camber) |
Test data | out 1 mm / -2°50' | out 1 mm / -1°50' |
| Standard value | in 0 ± 3 mm / 0°00' ± 1°00' | in 3 ± 3 mm / -1°30' ± 1°00' | |
* Test data at HKS.
Parts List * It may be changed without prior notice.
■HIPERMAX Technology for GR86/BRZ Cup
Newly developed oil SRF
We have developed a special oil with high viscosity that is resistant to heat dissipation. In addition, the damping starts from the very low speed range, providing reliable handling, good stability, and excellent feel.
※SRF: Super Response Fluid
Dedicated spring LVS
A newly developed dedicated spring made of high-strength wire material that is ideal for sports driving. It provides excellent response and a smooth ride.
※Only used in the front
※LVS: Low Vibration Spring
Spring Retainer
A retainer is standardly equipped on the top of the spring. No side force is generated, realizing low friction. It follows posture changes firmly and improves driving stability.
Point
[ CLOSE ]
