Code No. 80310-AT003
The fun to drive at will and the balance can be adapted from circuit to winding road.
Reised Driving-Comfort, "Ultimate All-Rounder"
The model in the photo is DB02.
Application
| Engine | B48 |
|---|---|
| Model Year | 19/05 - |
| 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 | Separated |
| Spring rate change at factory | Possible | Possible |
| Damping force adjustment with wire | - | - |
| Helper spring (Spring rate N/mm) | 〇 (19.8) | 〇 (19.8) |
| Factory *2 | Test data | Adjustable range High - Low *3 |
Drivable range High - Low *4 |
||
|---|---|---|---|---|---|
| FRONT | Ride height *1 | 668 | ← | 677 ～ 647 | 677 ～ 647 |
| Against stock | -24 | ← | -15 ～ -45 | -15 ～ -45 | |
| REAR | Ride height *1 | 676 | ← | 705 ～ 634 | 705 ～ 634 |
| Against stock | -29 | ← | 0 ～ -71 | 0 ～ -71 | |
*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) | 137 ( 14.0 ) | 196 ( 20.0 ) |
| Free height (mm) | 150 | 200 |
| Spring type | Straight | Straight |
| Recommended range to change spring rate N/mm(kgf/mm) | ±20 ( 2 ) | ±20 ( 2 ) |
Specification of damper
| F | R | |
|---|---|---|
| Damping force (Rebound/Damping)N* | 1854 / 613 | 942 / 540 |
| Default position of dial | 15 | 15 |
| Remaining damper stroke (Rebound/Damping)mm | 43 / 46 | 57 / 57 |
* 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) |
281 | ← | 289 | 264 | 324 | ← | 348 | 291 |
| Spring Set length(mm) |
195 | ← | 195 | 196 | - | - | - | - |
| Length to ride hight adjuster (mm) |
18 | ← | 26 | 0 | 47 | ← | 64 | 22 |
| Lever ratio | 1.18 | 1.69(spg) , 1.2(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 | - (790) | - (740) | |
| Tire size (Air pressure) kPa | 255 / 35 - 19 ( 200 ) | 275 / 35 - 19 ( 200 ) | |
| Wheel size | 9.5 JJ × 19 inset 25 | 10.5 JJ × 19 inset 32 | |
| Alignment (Toe/Camber) |
Test data | out 1 mm / -3°30' | in 1 mm / -2°40' |
| 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
It was tested with Yokohama Advan A052 tires on Fuji Speedway Racing Course.
This kit has a higher sport driving performance than the factory electronic controlled shock absorber.
By properly balancing the match between the high-grip tires and the GR Supra's strong body rigidity, we have achieved to bring out the best stable riding of Supra.
Newly adopted high-spec springs provide all-around coverage from street driving comfort to track. They provide such comfort that you may forget that high-rate springs are installed.
The front suspension adopts "inverted" strut type. The cylinder and outer diameter are penetrated into the upright mounting area to secure the necessary stroke volume even at a lowered ride height.
Adjustment type pillow upper allows to adjust the camber angle.
The rear coilover is equipped with a special upper plate machined from aluminum, and weight reduction is taken into consideration after determining the areas where strength is required.
*A separate error canceller is required due to the removal of the electric shock absorber.
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