HKS Hipermax IV GT USE20 Full Kit
We have improved the damping decay characteristics by inherit the big size main shaft from the M1 and also the design of niddle for MAX IV GT.
?Stock's rear doeesn't move smoothly and feels hard and bouncing. So we have made it better by smooth movement with comfort for the fun driving. For street drive, we have rated up and still has better ride than the stock by moving smoothly at the start. Secondly, steering got better with smooth roll and stability in the winding roads and fun to drive from street to circuit. And for the comfortable drive at a high speed crusing on the highway, we have tested from 100km to 150km and 200km to 250km range to analyze and check the gap for absorbability or flat characteristics to adapt the pitching and vertical G force. We have tested several times on this high speed drive. Enjoy the MAX IV GT that has the newest technology for the comfortable drive at the street driving to the highest speed drive.
Application:
| Engine | 2UR-GSE |
| Model Year | 07/10 - |
| Remarks |
Specification:
| FRONT | REAR | |
| Damping force adjustment | 30 steps | 30 steps |
| Base valve | - | - |
| Height adjustable lower bracket | ? | ? |
| Upper mount | Rubber | Rubber |
| Inverted/Normal type | Normal | Normal |
| Damper/Spring layout | Coilover | Coilover |
| Spring rate change at factory | Possible | Possible |
| Damping force adjustment with wire | - | ? |
| Helper spring (Spring rate N/mm) |
? ( 19.8 ) | ? ( 19.8 ) |
Ride Height:
| Factory *2 | Test data | Adjustable range High - Low *3 |
Drivable range High - Low *4 |
||
| FRONT | Ride height *1 | 670 | ? | 687 ? 628 | 687 ? 635 |
| Against stock | -17 | ? | 0 ? -59 | 0 ? -52 | |
| REAR | Ride height *1 | 648 | ? | 667 ??550 | 667 ??625 |
| Against stock | -19 | ? | 0 ? -117 | 0 ? -42 | |
*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).
Kit information:
Spring of Full Kit
| F | R | |
| Spring rate N/mm(kgf/mm) | 157 ( 16 ) | 98 ( 10 ) |
| Free height (mm) | 200 | 220 |
| Spring type | Straight | Straight Barrel type |
| Recommended range to change spring rate N/mm(kgf/mm) | ±20 ( 2 ) | ±20 ( 2 ) |
Specification of damper:
| F | R | |
| Damping force (Rebound/Damping)N* | 1834 / 432 | 1285 / 235 |
| Default position of dial | 15 | 15 |
| Remaining damper stroke (Rebound/Damping)mm | 58 / 57 | 72 / 82 |
* 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) |
395 | ? | 407 | 393 | 384 | ? | 397 | 368 |
| Spring Set length(mm) |
255 | ? | 255 | 277 | 284 | ? | 284 | 284 |
| Length to ride hight adjuster (mm) |
42 | ? | 54 | 18 | 41 | ? | 54 | 25 |
| Lever ratio | 1.46 | 1.44 | ||||||
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.