R
S660
S660 JW5

R

Code No. 80310-AH002

 

  

The fun to drive at will and the balance can be adapted from circuit to winding road. 
Reised Driving-Comfort, "Ultimate All-Rounder"

 

 

 

 

Application

Engine S07A(TURBO)
Model Year 15/04 - 22/03
Remarks  

Specification

  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket ×
Upper mount Spherical bearing Spherical bearing
Inverted/Normal type Inverted Inverted
Damper/Spring layout Coilover Coilover
Spring rate change at factory Possible Possible
Damping force adjustment with wire - -
Helper spring
(Spring rate N/mm)
〇 (4.7) 〇 (4.7)
Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 575 560 592 ~ 547 578 ~ 550
Against stock -23 -38 -6 ~ -51 -20 ~ -48
REAR Ride height *1 600 583 623 ~ 565 623 ~ 565
Against stock -29 -46 -6 ~ -64 -6 ~ -64

*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) 59 ( 6.0 ) 88 ( 9.0 )
Free height (mm) 150 150
Spring type Straight Straight
Recommended range to change spring rate N/mm(kgf/mm) +20 ( 2 ) ±10 ( 1 )

Specification of damper

  F R
Damping force (Rebound/Damping)N* 353 / 206 383 / 250
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 45 / 42 52 / 64

* 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)
- - - - 374 366 395 342
Spring
Set length(mm)
188 198 175 214 210 210 210
Length to ride hight
adjuster (mm)
30 20 43 4 32 20 53 0
Lever ratio 1.06 1.10

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



Test vehicle information

  F R
Vehicle weight kg 380 (380) 441 (450)
Tire size (Air pressure) kPa 165 / 55 - 15 ( 190 ) 195 / 45 - 16 ( 200 )
Wheel size 5.0 JJ × 15 inset 45 6.5 JJ × 16 inset 50
Alignment
(Toe/Camber)
Test data out 1 mm / -02°58' in 1 mm / -2°55'
Standard value IN 0 ± 1.5 mm / -3O' ± 30' IN 2 ± 1.2 mm / -1°30' ± 30'

* Test data at HKS.


Parts List   * It may be changed without prior notice.

 


Point

For those who enjoy the track with S660, we tested without allowing any compromise.
We assumed a range from general high-grip radial tires to the higher class, A052, and tested the spring rate from 6 to 10 kgf/mm. the best result we obtained are the front 6 kgf/mm and rear 9 kgf/mm.
While riding with this kit, it feels like street driving go-kart. It balances both of the tire grip and the steering controllability at your will. You can enjoy this kit from track to street driving.
Because S660 is unavailable to load the spare tire, this kit is set up to make the stable riding comfort even with high grip tires on street driving. In spite of tightening the damper force adjuster, you still can drive comfortably on the street.
For customers who have changed their front tires to 195 size, the adjustable upper mount, which was previously available as an option, is a standard equipment now.
For those who aim for faster driving, we recommend a rate increase of +2 kgf/mm of front and +1 kgf/mm of rear.
Please note that the vehicle height at testing does not meet the minimum ground clearance of Japanese vehicle inspection.
 
 
 
 



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