To the handling at will without lowering the vehicle height.Mass-produced shape product.

In suspension tuning, we focus not on the absolute amount of roll, but on the roll speed to reach that point.That is, in what process does the roll occur and progress?The damping force characteristic of the damper that controls is the key to obtaining handling with a sense of unity between human and horse.

Generally, the damping force of the damper is compared by the numerical value when the piston speed is 0.3 m / s (expansion and contraction of 1 cm per second), but it is an area that does not occur much in daily driving such as when riding on a large step. Is.It is in the area where the piston speed is lower than 30 m / sec that suppresses the unpleasant roll that comes in the situation such as the entrance of a corner or the turning of the S shape.Our "Sports Damper" adopts a "High Precision Micro Low Speed ​​Valve" that generates a precise damping force from the moment the damper starts to move on the internal piston. By raising the damping force with a sharp curve from a very low speed range of 0.1 m / sec or less, we are aiming for the characteristic of responding quickly to steering operation.On the other hand, the damping force after 0.05m / sec, which causes pushing up, is gently suppressed, and the damping force on the contraction side is suppressed to a low level to give consideration to ride quality.The basis for setting the damping force is the unique damping ratio (balance between the spring constant and damping force) that matches the spring constant of the mass-produced spring.The optimum setting is made by combining both.

"Roll speed graph" is a sports damper (Red line) And mass-produced dampers (Blue line) We are comparing the process of roll speed from the moment the roll starts to the time it stabilizes.It can be seen that the maximum roll speed of the sports damper is reduced by about 25% (depending on the vehicle model) compared to the mass-produced damper, and the speed is gradually reduced thereafter.This characteristic suppresses the sensitive movement at the moment of turning the steering wheel, and leads to a firm and responsive feel.

Figure ②

The "roll amount graph" compares the passage of time from the start of the roll to the maximum roll amount. (The spring that determines the maximum roll amount is the same specification for both) Sports damper (Red line) Is a standard damper (Blue line), It takes longer to reach the maximum roll amount, and you can see that it is progressing slowly.In other words, it rolls gently after starting to turn the steering, which leads to a sense that the posture change of the car is stable.

The appearance of the damper is the same shape as the mass-produced product, and there is no change in the vehicle height or roll amount by combining with the recommended mass-produced spring.However, by installing it, the transitional characteristics of the roll change, and you can get the handling that is close to the driver's sensibility. (Simultaneous installation with AutoExe lowdown spring is also possible).


<Damping force table>
Case specifications(Mm)Extension damping force (N)Compression side damping force (N)
LmaxLminpiston speed(M / s)piston speed(M / s)
0.050.10.30.050.10.3
RX-8 (SE)frontAutoExe

production car
505

510
380

372
760

574
990

874
1680

1361
680

586
930

897
1510

1386
rearAutoExe

production car
574

574
396

389
490

364
580

507
870

838
290

278
370

371
580

630
Roadster RF (NDERE/NDERC)frontAutoExe

production car
500

500
383

375
576

335
806

520
1365

884
189

259
357

372
662

660
rearAutoExe

production car
567

567
392

383
162

240
236

430
472

682
210

224
349

329
572

563
Roadster (ND5RE/ND5RC)frontAutoExe

production car
500

500
383

375
440

355
760

518
1350

846
160

158
260

226
460

457
rearAutoExe

production car
569

567
392

383
170

236
260

463
550

762
180

176
280

253
470

463
Roadster (NC)frontAutoExe

production car
508

508
380

380
420

247
650

327
1260

589
150

206
280

267
500

468
rearAutoExe

production car
543

543
361

361
260

211
400

272
810

484
160

191
240

237
500

393
Roadster (NB)frontAutoExe

production car
520

533
410

425
633

475
835

685
1262

1146
262

246
358

351
571

568
rearAutoExe

production car
440

452
325

326
646

466
837

682
1261

1158
264

253
359

353
573

570
MAZDA2 / Demio (DJ)frontAutoExe

production car
533

533
359

359
440

128
740

283
1190

1087
120

88
170

127
290

330
rearAutoExe

production car
681

681
457

457
130

106
200

192
370

395
140

120
200

207
330

330
Demio (DE)frontAutoExe

production car
509

509
340

340
210

133
430

287
740

701
170

102
260

207
430

363
rearAutoExe

production car
670

671
422

434
220

212
270

329
440

451
90

125
120

167
200

223
Demio (DY)
Verisa (DC)
frontAutoExe

production car
477

477
317

322
193

92
310

190
895

816
89

71
118

118
205

198
rearAutoExe

production car
670

684
485

488
230

151
351

294
669

526
104

94
144

125
225

208
MAZDA3 (BP)frontAutoExe

production car
423

429
268

266
299

361
653

930
1191

1123
145

351
225

444
449

601
rearAutoExe

production car
670

670
419

436
145

77
225

164
449

434
154

104
243

232
466

555
Axela (BM)frontAutoExe

production car
542

542
376

376
490

166
860

393
1360

872
220

156
300

262
530

453
rearAutoExe

production car
654

654
418

407
190

166
270

257
510

489
180

161
310

298
570

570
MAZDA6/Atenza (GJ)frontAutoExe

production car
537

537
371

371
480

176
750

378
1360

776
260

201
330

317
550

554
rearAutoExe

production car
646

646
436

436
250

196
370

358
770

736
240

201
390

368
750

700
CX-3 (DK) 2WDfrontAutoExe

production car
535

542
348

339
420

128
820

285
1480

547
100

104
140

162
250

270
rearAutoExe

production car
667

670
412

449
90

103
140

210
280

527
150

192
220

264
390

335
CX-30 (DM)frontAutoExe

production car
440

446
291

288
292

285
656

758
1215

973
274

320
350

414
559

574
rearAutoExe

production car
688

694
459

459
239

98
384

186
733

338
123

98
191

167
346

329
CX-5 (KF)frontAutoExe

production car
591

602
387

423
690

242
940

655
1410

1155
310

122
390

234
640

742
rearAutoExe

production car
669

671
434

453
220

113
310

270
620

502
210

133
340

263
610

521
CX-5 (KE)frontAutoExe

production car
601

601
393

389
290

549
540

751
1080

1164
500

403
600

589
910

836
rearAutoExe

production car
669

669
434

456
230

181
350

347
730

726
150

156
260

277
570

529
CX-8 (KG)frontAutoExe

production car
591

602
387

423
650

288
930

687
1400

1131
270

97
350

184
570

664
rearAutoExe

production car
669

669
425

451
320

133
490

301
940

551
180

153
250

291
450

501
MPV (LY)frontAutoExe

production car
631

631
439

439
338

213
816

584
1600

1616
150

249
341

424
731

710
rearAutoExe

production car
609

610
360

367
260

154
479

432
857

864
216

159
400

435
868

890

<Product compatibility table>

■ Sports Damper Twin tube Fixed damping force set for one unit

Car name適合 車 種part numberPrice excluding taxCodesReference work
Time
RX-8SE3P-300001 ~

SE3P- ~ 299999
MSY7700

MSE7700
¥79,200
(¥ 72,000)
D2.5 h
RoadsterNDERE/NDERC


ND5RE/ND5RC


NCEC


All NB series cars
MND7710


MND7700


MNC7700


MNB7700
¥79,200
(¥ 72,000)

¥79,200
(¥ 72,000)

¥79,200
(¥ 72,000)

¥70,400
(¥ 64,000)
D2.5 h
MAZDA2 / DemioDJ 2WD car ※ 1
MDJ7700¥66,000
(¥ 60,000)
D1.5 h
DemioDE series 2WD carMDE7700¥63,800
(¥ 58,000)
D2.0 h
MAZDA3All BP series carsMBP7700¥77,000
(¥ 70,000)
D2.5 h
AxelaBM / BY 2WD vehicleMBM7700¥77,000
(¥ 70,000)
D2.5 h
MAZDA6 / AtenzaAll GJ series carsMGJ7700¥79,200
(¥ 72,000)
D1.7 h
CX-3DK series 2WD car ※ 2MDK7700¥77,000
(¥ 70,000)
D1.5 h
CX-30All DM series carsMDM7700¥77,000
(¥ 70,000)
D2.5 h
CX-5All KF series cars ※ 3MKF7700¥79,200
(¥ 72,000)
D1.8 h
CX-8All KG series carsMKG7700¥83,600
(¥ 76,000)
D1.8 h
MPVLY3PMLY7700¥79,200
(¥ 72,000)
D2.0 h
※ 1 MAZDA2に装着する場合、純正マウンティングラバー(DA6A-28-380)×2、純正バンプストッパー(DA6A-28-1A0A)×2が別途必要。
※ 2 DK8FY、DK8FW、DKLFY、DKLFW、DKEFW-200001~の純正18インチタイヤ装着車に装着する場合、純正バンプストッパー(D10E-34-111)×2、純正マウンティングラバー(DA6A-28-380)×2、純正バンプストッパー(D24H-28-1A0A)×2が別途必要。
※ 3 When installing on KF series-300001 ~, genuine mounting rubber (TK52-28-380B) x 2 is required separately.