s13 Spring Rates
Stock '90 (from FSM):
_ _ _Front & Rear: 112 lb/in (base)
_ _ _Front & Rear: 123 lb/in (sports package)
Stock '92 (from FSM)
_ _ _Front & Rear: 102 lb/in _ _
_ _ _Front & Rear: 110 lb/in w/ HICAS
Eibach ProKit
_ _ _Front: _114-200 lb/in | -1.8"
_ _ _Rear: _ 114-148 lb/in | 1.6"
Eibach Sportlines
_ _ _Front: _137-230 lb/in | 2.2"
_ _ _Rear: _ 128-200 lb/in | 2.1"
Ground Control (default springs)
_ _ _Front: 6.5 kg/mm | 425 lb/in
_ _ _Rear: 4.4 kg/mm | 250 lb/in
KGMM S21 Sport
_ _ _front: 3.2 kg/mm | 179.2 lb/in
_ _ _rear: 2.6 kg/mm | 145.6 lb/in
KGMM S21 SuperSport
_ _ _front: 4.6 kg/mm | 257.6 lb/in
_ _ _rear: 3.8 kg/mm | 212.8 lb/in
KGMM S21 Racing
_ _ _front: 6.6 kg/mm | 369.6 lb/in
_ _ _rear: 5.2 kg/mm | 291.2 lb/in
Suspension Techniques: 1.3" drop
_ _ _Front: _206 lb/in | 1.3"
_ _ _Rear: _ 155 lb/in | 1.3"
5Zigen R-Rate
_ _ _Front = 2.4-5.2 kg/mm | 134-291 lb/in | 1.3"
_ _ _Rear = _1.9-5.0 kg/mm | 106-280 lb/in | 1.1"
_ _ _
Tein HA
_ _ _Front = 6 kg/mm | 336 lb/in
_ _ _Rear = _5 kg/mm | 280 lb/in
Tein HE
_ _ _Front = 8 kg/mm | 448 lb/in
_ _ _Rear = _6 kg/mm | 336 lb/in
Tein RA _
_ _ _Front = 10 kg/mm | 559 lb/in
_ _ _Rear = _ _8 kg/mm | 448 lb/in
Tein RE
_ _ _Front = 10 kg/mm | 559 lb/in
_ _ _Rear = _ _8 kg/mm | 448 lb/in
Tein RS
_ _ _Front = 10 kg/mm | 559 lb/in
_ _ _Rear = _ _8 kg/mm | 448 lb/in
Tein FLEX
_ _ _Front = 5 kg/mm | 280 lb/in
_ _ _Rear = _4 kg/mm | 224 lb/in
Tein S.Tech
_ _ _Front = 3.2 kg/mm | 179 lb/in
_ _ _Rear = _2.9 kg/mm | 162 lb/in
Tokico
_ _ _ Front = 160 lb/in
_ _ _ Rear = 160 lb/in
Whiteline Springs
_ _ _Front: 155Lbs/in | 35mm
_ _ _Back: 165Lbs/in | 40mm
Zeal Function B-6
Sreet Spec:
_ _ _Front = 6 kg/mm | 336 lb/in
_ _ _Rear = 5 kg/mm _| 280 lb/in
Circuit Spec:
_ _ _Front = 8 kg/mm | 448 lb/in
_ _ _Rear = 7 kg/mm _| 392 lb/in